TY  - JOUR
AU  - Lović, Jelena
AU  - Avramov-Ivić, Milka
AU  - Božić, Bojan
AU  - Lađarević, Jelena
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4182
AB  - The inclusion complexes of the selected, potentially biologically active, succinimides with beta-cyclodextrin (beta CD) and (2-hydroxypropyl)-beta-cyclodextrin (HP beta CD) were prepared. The formation of the inclusion complexes of the investigated monophenyl and diphenyl succinimide derivatives was confirmed using attenuated total reflection (ATR) study. Their electrochemical behavior was examined by cyclic voltammetry (CV) and square wave voltammetry (SWV) in 0.05 M NaHCO3 on a gold electrode. The stability constants for compound 1 were determined by cyclic voltammetry and calculated as K-beta CD = 350.87 M-1 and K-HP(beta CD) = 250.67 M-1. The SWV measurements reveal well defined peak at potential E-p = similar to 60 mV and the higher currents at E-p for both inclusion complex of the succinimides compared to the free compounds. The impact of chlorine atom in the phenyl moiety of succinimide derivatives on the activity in electro oxidation reaction is presented. Among the studied succinimides, according to SWV measurements, the most active is the monophenyl succinimide derivative (compound 1) in complex with beta CD. The difference of peak current of compound 1 + beta CD compared to compound 1 + HP beta CD and free compound is 6.3 and 35.2 mu A cm(-2), respectively.
PB  - Slovensko Kemijsko Drustvo, Ljubljana
T2  - Acta Chimica Slovenica
T1  - Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin
EP  - 189
IS  - 1
SP  - 182
VL  - 66
DO  - 10.17344/acsi.2018.4767
ER  - 

@article{
author = "Lović, Jelena and Avramov-Ivić, Milka and Božić, Bojan and Lađarević, Jelena and Mijin, Dušan",
year = "2019",
abstract = "The inclusion complexes of the selected, potentially biologically active, succinimides with beta-cyclodextrin (beta CD) and (2-hydroxypropyl)-beta-cyclodextrin (HP beta CD) were prepared. The formation of the inclusion complexes of the investigated monophenyl and diphenyl succinimide derivatives was confirmed using attenuated total reflection (ATR) study. Their electrochemical behavior was examined by cyclic voltammetry (CV) and square wave voltammetry (SWV) in 0.05 M NaHCO3 on a gold electrode. The stability constants for compound 1 were determined by cyclic voltammetry and calculated as K-beta CD = 350.87 M-1 and K-HP(beta CD) = 250.67 M-1. The SWV measurements reveal well defined peak at potential E-p = similar to 60 mV and the higher currents at E-p for both inclusion complex of the succinimides compared to the free compounds. The impact of chlorine atom in the phenyl moiety of succinimide derivatives on the activity in electro oxidation reaction is presented. Among the studied succinimides, according to SWV measurements, the most active is the monophenyl succinimide derivative (compound 1) in complex with beta CD. The difference of peak current of compound 1 + beta CD compared to compound 1 + HP beta CD and free compound is 6.3 and 35.2 mu A cm(-2), respectively.",
publisher = "Slovensko Kemijsko Drustvo, Ljubljana",
journal = "Acta Chimica Slovenica",
title = "Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin",
pages = "189-182",
number = "1",
volume = "66",
doi = "10.17344/acsi.2018.4767"
}

Lović, J., Avramov-Ivić, M., Božić, B., Lađarević, J.,& Mijin, D.. (2019). Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin. in Acta Chimica Slovenica
Slovensko Kemijsko Drustvo, Ljubljana., 66(1), 182-189.
https://doi.org/10.17344/acsi.2018.4767

Lović J, Avramov-Ivić M, Božić B, Lađarević J, Mijin D. Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin. in Acta Chimica Slovenica. 2019;66(1):182-189.
doi:10.17344/acsi.2018.4767 .

Lović, Jelena, Avramov-Ivić, Milka, Božić, Bojan, Lađarević, Jelena, Mijin, Dušan, "Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin" in Acta Chimica Slovenica, 66, no. 1 (2019):182-189,
https://doi.org/10.17344/acsi.2018.4767 . .

TY  - CONF
AU  - Krstajić Pajić, Mila N.
AU  - Stevanović, Sanja I.
AU  - Radmilović, Vuk V.
AU  - Zabinski, Piotr
AU  - Elezović, Nevenka R.
AU  - Radmilović, Velimir R.
AU  - Gojković, Snežana Lj.
AU  - Jovanović, Vladislava M.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7311
AB  - Formic acid is one of the most promising small organic molecules that can be used as fuel in polymer
electrolyte fuel cells. These systems are recognized as high-efficiency energy conversion devices which could
offer energy generated from electrochemical processes. At carbon supported platinum nanoparticles as state
of the art anodic catalysts formic acid oxidation reaction (FAOR) proceeds through a dual path mechanism
that includes the formation of CO in the indirect reaction pathway. Since CO is a catalytic poison, the best
way to address this problem is to synthesize catalysts that would either provide prompt CO oxidation and
removal, or favour the direct reaction pathway to completely avoid CO formation and electrode poisoning.
PtAu systems are considered as efficient catalysts for FAOR due to the ensemble effect of Au on Pt, however
the optimal ratio of these two elements is still quite vague. Given the experience with water in oil
microemulsion synthesis for preparation of shape controlled Pt nanoparticles,1 bimetallic PtAu/C
nanocatalysts were synthesized by the same procedure, following a simultaneous precursor reduction
methodology.2 The amount of the capping agent used, was varied in order to cause formation of
nanoparticles with different shape (cubic or tetrahedron like). Addition of a very low, but very finely dispersed
amount of Au significantly increases the catalytic activity, and also affects kinetic of the particle growth,
influencing the particle shape. Ordered structure of these particles contributes to their stability as well. These
results were obtained by Electrochemical and High Resolution Transmission Electron Microscopy
characterization (HRTEM) with Energy Dispersive X-ray Spectroscopy (EDXS), along with X-Ray Diffraction and
(XRD) and X-Ray Photoelectron Spectroscopy (XPS).
PB  - International Association of Physical Chemists
C3  - Book of Abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019
T1  - Catalysis at nano level: Promoting Pt nanoparticle activity by Au decoration
SP  - 119
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7311
ER  - 

@conference{
author = "Krstajić Pajić, Mila N. and Stevanović, Sanja I. and Radmilović, Vuk V. and Zabinski, Piotr and Elezović, Nevenka R. and Radmilović, Velimir R. and Gojković, Snežana Lj. and Jovanović, Vladislava M.",
year = "2019",
abstract = "Formic acid is one of the most promising small organic molecules that can be used as fuel in polymer
electrolyte fuel cells. These systems are recognized as high-efficiency energy conversion devices which could
offer energy generated from electrochemical processes. At carbon supported platinum nanoparticles as state
of the art anodic catalysts formic acid oxidation reaction (FAOR) proceeds through a dual path mechanism
that includes the formation of CO in the indirect reaction pathway. Since CO is a catalytic poison, the best
way to address this problem is to synthesize catalysts that would either provide prompt CO oxidation and
removal, or favour the direct reaction pathway to completely avoid CO formation and electrode poisoning.
PtAu systems are considered as efficient catalysts for FAOR due to the ensemble effect of Au on Pt, however
the optimal ratio of these two elements is still quite vague. Given the experience with water in oil
microemulsion synthesis for preparation of shape controlled Pt nanoparticles,1 bimetallic PtAu/C
nanocatalysts were synthesized by the same procedure, following a simultaneous precursor reduction
methodology.2 The amount of the capping agent used, was varied in order to cause formation of
nanoparticles with different shape (cubic or tetrahedron like). Addition of a very low, but very finely dispersed
amount of Au significantly increases the catalytic activity, and also affects kinetic of the particle growth,
influencing the particle shape. Ordered structure of these particles contributes to their stability as well. These
results were obtained by Electrochemical and High Resolution Transmission Electron Microscopy
characterization (HRTEM) with Energy Dispersive X-ray Spectroscopy (EDXS), along with X-Ray Diffraction and
(XRD) and X-Ray Photoelectron Spectroscopy (XPS).",
publisher = "International Association of Physical Chemists",
journal = "Book of Abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019",
title = "Catalysis at nano level: Promoting Pt nanoparticle activity by Au decoration",
pages = "119",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7311"
}

Krstajić Pajić, M. N., Stevanović, S. I., Radmilović, V. V., Zabinski, P., Elezović, N. R., Radmilović, V. R., Gojković, S. Lj.,& Jovanović, V. M.. (2019). Catalysis at nano level: Promoting Pt nanoparticle activity by Au decoration. in Book of Abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019
International Association of Physical Chemists., 119.
https://hdl.handle.net/21.15107/rcub_technorep_7311

Krstajić Pajić MN, Stevanović SI, Radmilović VV, Zabinski P, Elezović NR, Radmilović VR, Gojković SL, Jovanović VM. Catalysis at nano level: Promoting Pt nanoparticle activity by Au decoration. in Book of Abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019. 2019;:119.
https://hdl.handle.net/21.15107/rcub_technorep_7311 .

Krstajić Pajić, Mila N., Stevanović, Sanja I., Radmilović, Vuk V., Zabinski, Piotr, Elezović, Nevenka R., Radmilović, Velimir R., Gojković, Snežana Lj., Jovanović, Vladislava M., "Catalysis at nano level: Promoting Pt nanoparticle activity by Au decoration" in Book of Abstracts / 7th Regional Symposium on Electrochemistry – South East Europe & 8th Kurt Schwabe Symposium, Split, Croatia, May 27-30, 2019 (2019):119,
https://hdl.handle.net/21.15107/rcub_technorep_7311 .

TY  - CONF
AU  - Krstajić Pajić, Mila N.
AU  - Stevanović, Sanja I.
AU  - Radmilović, Vuk V.
AU  - Radmilović, Velimir R.
AU  - Gojković, Snežana Lj.
AU  - Jovanović, Vladislava M.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7312
AB  - Sve veće potrebe za proizvodnjom energije iz obovljivih izvora, uslovile su intenzivna
istraživanja u pravcu korišćenja ekološki prihvatljivih goriva. Oksidacijom vodonika u
gorivnim spregovima postiže se proizvodnja energije na ekološki prihvatljiv način, a umesto
vodonika mogu se koristiti i mali organski molekuli, poput mravlje kiseline koji su bezbedniji
za upotrebu i transport. Njihova oksidacija u anodnom delu polimer elektrolitnog gorivnog
sprega zahteva upotrebu plemenitih metala kao katalizatora, jer mogu da omoguće njihovu
dehidrogenaciju kao početni stupanj reakcije. Kao do sada najbolji katalizatori za oksidaciju
mravlje kiseline pokazali su se bimetalni PtAu katalizatori, zahvaljujući geometrijskom
efektu zlata na platinu kojim se favorizuje direktni mehanizam oksidacije i izbegava
stvaranje reakcionog intermedijara CO koji se ponaša kao katalitički otrov. U ovom radu
PtAu katalizatori na aktiviranom ugljeniku sintetizovani su mikroemulzionim postupkom, sa
uticajem aditiva kojim je izmenjen oblik čestica, čime je dodatno poboljšana njihova
katalitička sposobnost.
AB  - Ever rising needs for renewable energy, in order to decrease pollution and exploitation of
limited fossil resources, have caused intensive research on the use of eco friendly fuels.
Hydrogen electrooxidation in fuel cells is a promissing process of zero-emission energy
production from a renewable source. Furthermore, using small organic molecules (SOMs)
such as formic acid, instead of hydrogen, makes this process safer and fuel transportation
easier to manage. Oxidation of SOMs in fuel cells requires a noble metal as catalyst, capable
of enabling dehydrogenation of SOM as an initial step of the reaction. Bimetallic PtAu
catalysts are the best catalysts for formic acid oxidation so far, due to the ensemble effect
of Au on Pt which favors the direct oxidation of formic acid, avoiding the formation of CO
that acts as a catalytic poison. In this reseach carbon supported PtAu nanocatalysts were
synthesized by a microemulsion method, in presence of a capping agent that affected the
particle shape, which made further improvement in catalytic performance of these
nanoparticles.
PB  - Beograd : Srpsko hemijsko društvo
C3  - Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019
T1  - Bimetalni nanokatalizatori kontrolisanog oblika za anodne reakcije u gorivnim galvanskim spregovima
T1  - Shape controlled bimetallic nanocatalysts for anodic reactions in fuel cells
SP  - 25
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7312
ER  - 

@conference{
author = "Krstajić Pajić, Mila N. and Stevanović, Sanja I. and Radmilović, Vuk V. and Radmilović, Velimir R. and Gojković, Snežana Lj. and Jovanović, Vladislava M.",
year = "2019",
abstract = "Sve veće potrebe za proizvodnjom energije iz obovljivih izvora, uslovile su intenzivna
istraživanja u pravcu korišćenja ekološki prihvatljivih goriva. Oksidacijom vodonika u
gorivnim spregovima postiže se proizvodnja energije na ekološki prihvatljiv način, a umesto
vodonika mogu se koristiti i mali organski molekuli, poput mravlje kiseline koji su bezbedniji
za upotrebu i transport. Njihova oksidacija u anodnom delu polimer elektrolitnog gorivnog
sprega zahteva upotrebu plemenitih metala kao katalizatora, jer mogu da omoguće njihovu
dehidrogenaciju kao početni stupanj reakcije. Kao do sada najbolji katalizatori za oksidaciju
mravlje kiseline pokazali su se bimetalni PtAu katalizatori, zahvaljujući geometrijskom
efektu zlata na platinu kojim se favorizuje direktni mehanizam oksidacije i izbegava
stvaranje reakcionog intermedijara CO koji se ponaša kao katalitički otrov. U ovom radu
PtAu katalizatori na aktiviranom ugljeniku sintetizovani su mikroemulzionim postupkom, sa
uticajem aditiva kojim je izmenjen oblik čestica, čime je dodatno poboljšana njihova
katalitička sposobnost., Ever rising needs for renewable energy, in order to decrease pollution and exploitation of
limited fossil resources, have caused intensive research on the use of eco friendly fuels.
Hydrogen electrooxidation in fuel cells is a promissing process of zero-emission energy
production from a renewable source. Furthermore, using small organic molecules (SOMs)
such as formic acid, instead of hydrogen, makes this process safer and fuel transportation
easier to manage. Oxidation of SOMs in fuel cells requires a noble metal as catalyst, capable
of enabling dehydrogenation of SOM as an initial step of the reaction. Bimetallic PtAu
catalysts are the best catalysts for formic acid oxidation so far, due to the ensemble effect
of Au on Pt which favors the direct oxidation of formic acid, avoiding the formation of CO
that acts as a catalytic poison. In this reseach carbon supported PtAu nanocatalysts were
synthesized by a microemulsion method, in presence of a capping agent that affected the
particle shape, which made further improvement in catalytic performance of these
nanoparticles.",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019",
title = "Bimetalni nanokatalizatori kontrolisanog oblika za anodne reakcije u gorivnim galvanskim spregovima, Shape controlled bimetallic nanocatalysts for anodic reactions in fuel cells",
pages = "25",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7312"
}

Krstajić Pajić, M. N., Stevanović, S. I., Radmilović, V. V., Radmilović, V. R., Gojković, S. Lj.,& Jovanović, V. M.. (2019). Bimetalni nanokatalizatori kontrolisanog oblika za anodne reakcije u gorivnim galvanskim spregovima. in Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019
Beograd : Srpsko hemijsko društvo., 25.
https://hdl.handle.net/21.15107/rcub_technorep_7312

Krstajić Pajić MN, Stevanović SI, Radmilović VV, Radmilović VR, Gojković SL, Jovanović VM. Bimetalni nanokatalizatori kontrolisanog oblika za anodne reakcije u gorivnim galvanskim spregovima. in Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019. 2019;:25.
https://hdl.handle.net/21.15107/rcub_technorep_7312 .

Krstajić Pajić, Mila N., Stevanović, Sanja I., Radmilović, Vuk V., Radmilović, Velimir R., Gojković, Snežana Lj., Jovanović, Vladislava M., "Bimetalni nanokatalizatori kontrolisanog oblika za anodne reakcije u gorivnim galvanskim spregovima" in Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019 (2019):25,
https://hdl.handle.net/21.15107/rcub_technorep_7312 .

TY  - THES
AU  - Krstajić-Pajić, Mila
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6887
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:20203/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51645455
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4679
AB  - Development of novel materials that would enable the commercialization of fuel cell technology and contribute to reduction of fossil fuel usage in energy production is of great importance for the progress of modern society. As a result, the number of scientific papers devoted to this problem is in a significant increase over the past years. When it comes to the oxidation of small organic molecules (SOM) as potential fuel for the fuel cells, in addition to the problem of the high price of platinum used as a catalyst, there is a problem of poisoning the platinum surface by carbon-monoxide formed as an intermediate in the anodic reaction. In this research carbon supported platinum nanoparticles were synthesized by a water-in-oil microemulsion synthesis procedure. The effect of HCl as a capping agent on nanoparticle shape was investigated by adding up to 35 % HCl in the water phase of the microemulsion. The optimal HCl amount was found to be 25%, in which case platinum was synthesized in the form of cubic-shaped nanoparticles. Four prepared catalysts were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD) and (high resolution) transmission electron microscopy (HR)TEM. These analyses confirmed the change in particle shape induced by the capping agent. Metal loading in catalyst powder was determined to be close to 20%, and the particle size calculated from TEM data went from 4 to 8 nm, with the increase of the HCl amount used. The electrochemical characterization and the investigation of these samples in the reactions of formic acid and methanol oxidation revealed improved catalytic performance of the sample that predominantly contained cubic-shaped nanoparticles compared to conventional cube-octahedron shaped particles. The reason of the improved activity and stability of this catalyst lies in the facilitated CO removal from the catalyst surface, and thus improved tolerance to surface poisoning.
AB  - Pronalazak novih materijala koji bi omogućili komercijalizaciju gorivnih spregova i doprineli smanjenju upotrebe fosilnih goriva u proizvodnji energije je od velikog značaja za razvoj savremenog društva. Zbog toga je broj naučnih radova posvećen ovom problemu u značajnom porastu tokom proteklih godina. Kada je u pitanju oksidacija malih organskih molekula kao potencijalnih goriva za gorivni spreg, pored problema visoke cene platine koja se koristi kao katalizator, prisutan je i problem trovanja površine platine ugljen-monoksidom koji se formira kao intermedijar anodne reakcije. U ovom radu nanočestice platine na ugljeničnom nosaču sintetizovane su mikroemulzionim postupkom. Dodatkom različitih količina aditiva HCl tokom sinteze (od 0 do 35 %) ispitan je uticaj dodatka aditiva na oblik nanočestica. Pri optimalnoj koncentraciji od 25% HCl sintetizovane su nanočestice kubnog oblika. Četiri sintetizovana katalizatora okarakterisana su termogravimetrijskom analizom (TGA), rendgenskom difrakcijom X-zraka (XRD), transmisionom elektronskom mikroskopijom (TEM) i transmisionom elektronskom mikroskopijom visoke rezolucije (HRTEM). Ovim metodama potvrđena je promena oblika nanočestica izazvana dodatkom aditiva, utvrđen je udeo metala u katalizatoru (20%) i određena je veličina čestica, koja raste sa porastom udela aditiva (od 4 do 8 nm prema TEM analizi). Elektrohemijskom karakterizacijom i ispitivanjem reakcija oksidacije mravlje kiseline i metanola na ovim katalizatorima, ustanovljeno je da katalizator sa nanočesticama kubnog oblika, i većim udelom preferencijalno orijentisanih ravni (100) pokazuje bolju aktivnost za ove reakcije od katalizatora Pt sa konvencionalnim kub-oktaedarskim česticama. Razlog tome leži u lakšem uklanjanju adsorbovanog CO sa površine nanočestica sa zastupljenim kubnim oblikom.
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Nanostructured platinum based catalysts for electrooxidation of small organic molecules prepared by microemulsion method
T1  - Nanostruktuirani platinski katalizatori za elektrohemijsku oksidaciju malih organskih molekula sintetizovani mikroemulzionim postupkom
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4679
ER  - 

@phdthesis{
author = "Krstajić-Pajić, Mila",
year = "2019",
abstract = "Development of novel materials that would enable the commercialization of fuel cell technology and contribute to reduction of fossil fuel usage in energy production is of great importance for the progress of modern society. As a result, the number of scientific papers devoted to this problem is in a significant increase over the past years. When it comes to the oxidation of small organic molecules (SOM) as potential fuel for the fuel cells, in addition to the problem of the high price of platinum used as a catalyst, there is a problem of poisoning the platinum surface by carbon-monoxide formed as an intermediate in the anodic reaction. In this research carbon supported platinum nanoparticles were synthesized by a water-in-oil microemulsion synthesis procedure. The effect of HCl as a capping agent on nanoparticle shape was investigated by adding up to 35 % HCl in the water phase of the microemulsion. The optimal HCl amount was found to be 25%, in which case platinum was synthesized in the form of cubic-shaped nanoparticles. Four prepared catalysts were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD) and (high resolution) transmission electron microscopy (HR)TEM. These analyses confirmed the change in particle shape induced by the capping agent. Metal loading in catalyst powder was determined to be close to 20%, and the particle size calculated from TEM data went from 4 to 8 nm, with the increase of the HCl amount used. The electrochemical characterization and the investigation of these samples in the reactions of formic acid and methanol oxidation revealed improved catalytic performance of the sample that predominantly contained cubic-shaped nanoparticles compared to conventional cube-octahedron shaped particles. The reason of the improved activity and stability of this catalyst lies in the facilitated CO removal from the catalyst surface, and thus improved tolerance to surface poisoning., Pronalazak novih materijala koji bi omogućili komercijalizaciju gorivnih spregova i doprineli smanjenju upotrebe fosilnih goriva u proizvodnji energije je od velikog značaja za razvoj savremenog društva. Zbog toga je broj naučnih radova posvećen ovom problemu u značajnom porastu tokom proteklih godina. Kada je u pitanju oksidacija malih organskih molekula kao potencijalnih goriva za gorivni spreg, pored problema visoke cene platine koja se koristi kao katalizator, prisutan je i problem trovanja površine platine ugljen-monoksidom koji se formira kao intermedijar anodne reakcije. U ovom radu nanočestice platine na ugljeničnom nosaču sintetizovane su mikroemulzionim postupkom. Dodatkom različitih količina aditiva HCl tokom sinteze (od 0 do 35 %) ispitan je uticaj dodatka aditiva na oblik nanočestica. Pri optimalnoj koncentraciji od 25% HCl sintetizovane su nanočestice kubnog oblika. Četiri sintetizovana katalizatora okarakterisana su termogravimetrijskom analizom (TGA), rendgenskom difrakcijom X-zraka (XRD), transmisionom elektronskom mikroskopijom (TEM) i transmisionom elektronskom mikroskopijom visoke rezolucije (HRTEM). Ovim metodama potvrđena je promena oblika nanočestica izazvana dodatkom aditiva, utvrđen je udeo metala u katalizatoru (20%) i određena je veličina čestica, koja raste sa porastom udela aditiva (od 4 do 8 nm prema TEM analizi). Elektrohemijskom karakterizacijom i ispitivanjem reakcija oksidacije mravlje kiseline i metanola na ovim katalizatorima, ustanovljeno je da katalizator sa nanočesticama kubnog oblika, i većim udelom preferencijalno orijentisanih ravni (100) pokazuje bolju aktivnost za ove reakcije od katalizatora Pt sa konvencionalnim kub-oktaedarskim česticama. Razlog tome leži u lakšem uklanjanju adsorbovanog CO sa površine nanočestica sa zastupljenim kubnim oblikom.",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Nanostructured platinum based catalysts for electrooxidation of small organic molecules prepared by microemulsion method, Nanostruktuirani platinski katalizatori za elektrohemijsku oksidaciju malih organskih molekula sintetizovani mikroemulzionim postupkom",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4679"
}

Krstajić-Pajić, M.. (2019). Nanostructured platinum based catalysts for electrooxidation of small organic molecules prepared by microemulsion method. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4679

Krstajić-Pajić M. Nanostructured platinum based catalysts for electrooxidation of small organic molecules prepared by microemulsion method. 2019;.
https://hdl.handle.net/21.15107/rcub_technorep_4679 .

Krstajić-Pajić, Mila, "Nanostructured platinum based catalysts for electrooxidation of small organic molecules prepared by microemulsion method" (2019),
https://hdl.handle.net/21.15107/rcub_technorep_4679 .

TY  - JOUR
AU  - Krstajić-Pajić, Mila
AU  - Stevanović, Sanja
AU  - Radmilović, Vuk
AU  - Gavrilović-Wohlmuther, Aleksandra
AU  - Zabinski, Piotr
AU  - Elezović, Nevenka R.
AU  - Radmilović, Velimir R.
AU  - Gojković, Snežana Lj.
AU  - Jovanović, Vladislava M.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4330
AB  - Low loading PtAu nanoparticles supported on high area carbon were synthesized by water-in-oil microemulsion method and examined for formic acid and methanol oxidation. Prepared catalyst powder was characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). These techniques revealed that the catalyst contains rather agglomerated quasi-spherical particles, similar to 4 nm diameter, composed of a solid solution of Pt and Au with only similar to 4 at% of Au. In spite of such low Au content, both onset and peak potentials for CO oxidation are shifted some 150 mV to more positive values in comparison to Pt synthesized in the same manner due to stronger binding of CO as a result of notable electronic effect. It is important that this small quantity of Au also significantly influences oxidation of formic acid promoting direct path and suppressing indirect path in formic acid oxidation in a degree as expected by a much larger quantity of Au. Such improvement could be due exclusively by ensemble effect of high number of small Pt domains which formation could be possible only by very fine dispersion of such low Au quantity. High number of small Pt domains is corroborated by lower activity for methanol oxidation in comparison to Pt catalyst synthesized by the same procedure. These results emphasize the importance of the Au dispersion on the surface of Pt over its quantity in PtAu catalyst with regards to both, the ensemble and the electronic effects.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Catalysis B-Environmental
T1  - Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method
EP  - 593
SP  - 585
VL  - 243
DO  - 10.1016/j.apcatb.2018.10.064
ER  - 

@article{
author = "Krstajić-Pajić, Mila and Stevanović, Sanja and Radmilović, Vuk and Gavrilović-Wohlmuther, Aleksandra and Zabinski, Piotr and Elezović, Nevenka R. and Radmilović, Velimir R. and Gojković, Snežana Lj. and Jovanović, Vladislava M.",
year = "2019",
abstract = "Low loading PtAu nanoparticles supported on high area carbon were synthesized by water-in-oil microemulsion method and examined for formic acid and methanol oxidation. Prepared catalyst powder was characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). These techniques revealed that the catalyst contains rather agglomerated quasi-spherical particles, similar to 4 nm diameter, composed of a solid solution of Pt and Au with only similar to 4 at% of Au. In spite of such low Au content, both onset and peak potentials for CO oxidation are shifted some 150 mV to more positive values in comparison to Pt synthesized in the same manner due to stronger binding of CO as a result of notable electronic effect. It is important that this small quantity of Au also significantly influences oxidation of formic acid promoting direct path and suppressing indirect path in formic acid oxidation in a degree as expected by a much larger quantity of Au. Such improvement could be due exclusively by ensemble effect of high number of small Pt domains which formation could be possible only by very fine dispersion of such low Au quantity. High number of small Pt domains is corroborated by lower activity for methanol oxidation in comparison to Pt catalyst synthesized by the same procedure. These results emphasize the importance of the Au dispersion on the surface of Pt over its quantity in PtAu catalyst with regards to both, the ensemble and the electronic effects.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Catalysis B-Environmental",
title = "Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method",
pages = "593-585",
volume = "243",
doi = "10.1016/j.apcatb.2018.10.064"
}

Krstajić-Pajić, M., Stevanović, S., Radmilović, V., Gavrilović-Wohlmuther, A., Zabinski, P., Elezović, N. R., Radmilović, V. R., Gojković, S. Lj.,& Jovanović, V. M.. (2019). Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method. in Applied Catalysis B-Environmental
Elsevier Science Bv, Amsterdam., 243, 585-593.
https://doi.org/10.1016/j.apcatb.2018.10.064

Krstajić-Pajić M, Stevanović S, Radmilović V, Gavrilović-Wohlmuther A, Zabinski P, Elezović NR, Radmilović VR, Gojković SL, Jovanović VM. Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method. in Applied Catalysis B-Environmental. 2019;243:585-593.
doi:10.1016/j.apcatb.2018.10.064 .

Krstajić-Pajić, Mila, Stevanović, Sanja, Radmilović, Vuk, Gavrilović-Wohlmuther, Aleksandra, Zabinski, Piotr, Elezović, Nevenka R., Radmilović, Velimir R., Gojković, Snežana Lj., Jovanović, Vladislava M., "Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method" in Applied Catalysis B-Environmental, 243 (2019):585-593,
https://doi.org/10.1016/j.apcatb.2018.10.064 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Lađarević, Jelena
AU  - Mijin, Dušan
AU  - Jadranin, Milka
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4102
AB  - In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry via its electrooxidation at Au and glassy carbon electrode in 0.05 M NaHCO3. Under these conditions transformation of MET to corresponding N-carbonyl guanidine via oxime intermediate is suggested. The stability of MET was tested under directed stress conditions using IrOx electrode with sodium sulphate as an electrolyte and cyclic 4-amino-2-imino-1-methyl-1,2-dihydro-1,3,5-triazine appeared as the main end-product. The courses of the electrochemical processes at three electrodes were followed by UV spectroscopy and evaluated by total organic carbon analysis.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes
EP  - 1327
IS  - 11
SP  - 1319
VL  - 84
DO  - 10.2298/JSC190731091L
ER  - 

@article{
author = "Lović, Jelena and Lađarević, Jelena and Mijin, Dušan and Jadranin, Milka and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2019",
abstract = "In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry via its electrooxidation at Au and glassy carbon electrode in 0.05 M NaHCO3. Under these conditions transformation of MET to corresponding N-carbonyl guanidine via oxime intermediate is suggested. The stability of MET was tested under directed stress conditions using IrOx electrode with sodium sulphate as an electrolyte and cyclic 4-amino-2-imino-1-methyl-1,2-dihydro-1,3,5-triazine appeared as the main end-product. The courses of the electrochemical processes at three electrodes were followed by UV spectroscopy and evaluated by total organic carbon analysis.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes",
pages = "1327-1319",
number = "11",
volume = "84",
doi = "10.2298/JSC190731091L"
}

Lović, J., Lađarević, J., Mijin, D., Jadranin, M., Petrović, S.,& Avramov-Ivić, M.. (2019). Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 84(11), 1319-1327.
https://doi.org/10.2298/JSC190731091L

Lović J, Lađarević J, Mijin D, Jadranin M, Petrović S, Avramov-Ivić M. Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes. in Journal of the Serbian Chemical Society. 2019;84(11):1319-1327.
doi:10.2298/JSC190731091L .

Lović, Jelena, Lađarević, Jelena, Mijin, Dušan, Jadranin, Milka, Petrović, Slobodan, Avramov-Ivić, Milka, "Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes" in Journal of the Serbian Chemical Society, 84, no. 11 (2019):1319-1327,
https://doi.org/10.2298/JSC190731091L . .

TY  - JOUR
AU  - Avramov-Ivić, Milka
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Trišović, Nemanja
AU  - Lađarević, Jelena
AU  - Vuković, Dragan
AU  - Drmanić, Saša
AU  - Mladenović, Aleksandar R.
AU  - Jadranin, Milka
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4306
AB  - Esomeprazole is the most effective of the proton-pump inhibitors for the acid-related diseases and at first was examined for the electroanalytical purposes. The drug standard and as a content of injection powder was investigated by cyclic voltammetry (CV) and quantitatively determined using square wave voltammetry (SWV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. SWV showed a linear dependency of the anodic peak currents vs. esomeprazole standard concentrations in the range from 3.0 to 500 mu g mL(-1) with the values of limit of detection (LOD) and limit of quantification (LOQ): 1.4 and 4.6 mu g mL(-1), respectively. Using the constructed and validated calibration curve, the values of unknown esomeprazole concentrations in injection powder and in human serum spiked with standard were determined. Before the electrochemical oxidation, it was shown by atomic force microscopy (AFM) that the small esomeprazole islands formed inside holes were visible and their diameter was about 200 nm attributed to physico-chemical characteristics of esomeprazole. After the electrochemical oxidation, the morphology of esomeprazole standard on Au surface was completely changed and composed of spherical particles in a diameter between 200 and 600 nm. With esomeprazole suspended in human serum, the process of crystallization partly occurred in the form of spherical grains with the average size of these grains was about 4 gm. The analysis at the macro level done by the optical microscopy (OM) confirmed this opinion. The study of esomeprazole degradation showed that at Au electrode, after 3 h of cycling, a neglectable amount of the esomeprazole was changed. Using IrOx electrode under directed stress conditions, its almost complete degradation was realized after 3 h confirmed by high performance liquid chromatography (HPLC). Total organic carbon (TOC) analysis showed that 95% of esomeprazole was mineralized. The HPLC and Liquid chromatography-mass spectrometry (LC-MS) study revealed the formation of 4-hydroxy omeprazole sulphide, 4-hydroxy omeprazole sulphone, esomeprazole sulphone and methylated esomeprazole.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation
VL  - 848
DO  - 10.1016/j.jelechem.2019.113303
ER  - 

@article{
author = "Avramov-Ivić, Milka and Lović, Jelena and Stevanović, Sanja and Nikolić, Nebojša and Trišović, Nemanja and Lađarević, Jelena and Vuković, Dragan and Drmanić, Saša and Mladenović, Aleksandar R. and Jadranin, Milka and Petrović, Slobodan and Mijin, Dušan",
year = "2019",
abstract = "Esomeprazole is the most effective of the proton-pump inhibitors for the acid-related diseases and at first was examined for the electroanalytical purposes. The drug standard and as a content of injection powder was investigated by cyclic voltammetry (CV) and quantitatively determined using square wave voltammetry (SWV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. SWV showed a linear dependency of the anodic peak currents vs. esomeprazole standard concentrations in the range from 3.0 to 500 mu g mL(-1) with the values of limit of detection (LOD) and limit of quantification (LOQ): 1.4 and 4.6 mu g mL(-1), respectively. Using the constructed and validated calibration curve, the values of unknown esomeprazole concentrations in injection powder and in human serum spiked with standard were determined. Before the electrochemical oxidation, it was shown by atomic force microscopy (AFM) that the small esomeprazole islands formed inside holes were visible and their diameter was about 200 nm attributed to physico-chemical characteristics of esomeprazole. After the electrochemical oxidation, the morphology of esomeprazole standard on Au surface was completely changed and composed of spherical particles in a diameter between 200 and 600 nm. With esomeprazole suspended in human serum, the process of crystallization partly occurred in the form of spherical grains with the average size of these grains was about 4 gm. The analysis at the macro level done by the optical microscopy (OM) confirmed this opinion. The study of esomeprazole degradation showed that at Au electrode, after 3 h of cycling, a neglectable amount of the esomeprazole was changed. Using IrOx electrode under directed stress conditions, its almost complete degradation was realized after 3 h confirmed by high performance liquid chromatography (HPLC). Total organic carbon (TOC) analysis showed that 95% of esomeprazole was mineralized. The HPLC and Liquid chromatography-mass spectrometry (LC-MS) study revealed the formation of 4-hydroxy omeprazole sulphide, 4-hydroxy omeprazole sulphone, esomeprazole sulphone and methylated esomeprazole.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation",
volume = "848",
doi = "10.1016/j.jelechem.2019.113303"
}

Avramov-Ivić, M., Lović, J., Stevanović, S., Nikolić, N., Trišović, N., Lađarević, J., Vuković, D., Drmanić, S., Mladenović, A. R., Jadranin, M., Petrović, S.,& Mijin, D.. (2019). Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 848.
https://doi.org/10.1016/j.jelechem.2019.113303

Avramov-Ivić M, Lović J, Stevanović S, Nikolić N, Trišović N, Lađarević J, Vuković D, Drmanić S, Mladenović AR, Jadranin M, Petrović S, Mijin D. Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation. in Journal of Electroanalytical Chemistry. 2019;848.
doi:10.1016/j.jelechem.2019.113303 .

Avramov-Ivić, Milka, Lović, Jelena, Stevanović, Sanja, Nikolić, Nebojša, Trišović, Nemanja, Lađarević, Jelena, Vuković, Dragan, Drmanić, Saša, Mladenović, Aleksandar R., Jadranin, Milka, Petrović, Slobodan, Mijin, Dušan, "Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation" in Journal of Electroanalytical Chemistry, 848 (2019),
https://doi.org/10.1016/j.jelechem.2019.113303 . .

TY  - JOUR
AU  - Božić, Bojan
AU  - Lović, Jelena
AU  - Banjac, Nebojša
AU  - Vitnik, Željko
AU  - Vitnik, Vesna
AU  - Mijin, Dušan
AU  - Ušćumlić, Gordana
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3871
AB  - A series of succinimide derivatives were studied using the cyclic and square wave voltammetry. Density function theory was used in order to determinate which of the structural parameters influence the electrochemical activity. The quantum chemical calculations of the investigated succinimides were linked with the experimental electrochemical data and used to propose the oxidation mechanism. The most active among studied succinimides is 1,3-diphenylsuccinimide. The results obtained from the cyclic and square wave voltammetry and quantum chemical calculations indicate that the investigated compounds undergo oxidation by irreversible, diffusion controlled process including transfer of 1e(-) and 1 proton. The voltammetric and DFT results signify that the mechanism of electrochemical oxidation of all compounds involve the conversion of carbonyl-methyne-phenyl segment or methylene group in free radical. This conversion proceeds by the loss of one proton one electron process.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Voltammetric and Quantum Investigation of Selected Succinimides
EP  - 4297
IS  - 5
SP  - 4285
VL  - 13
DO  - 10.20964/2018.05.54
ER  - 

@article{
author = "Božić, Bojan and Lović, Jelena and Banjac, Nebojša and Vitnik, Željko and Vitnik, Vesna and Mijin, Dušan and Ušćumlić, Gordana and Avramov-Ivić, Milka",
year = "2018",
abstract = "A series of succinimide derivatives were studied using the cyclic and square wave voltammetry. Density function theory was used in order to determinate which of the structural parameters influence the electrochemical activity. The quantum chemical calculations of the investigated succinimides were linked with the experimental electrochemical data and used to propose the oxidation mechanism. The most active among studied succinimides is 1,3-diphenylsuccinimide. The results obtained from the cyclic and square wave voltammetry and quantum chemical calculations indicate that the investigated compounds undergo oxidation by irreversible, diffusion controlled process including transfer of 1e(-) and 1 proton. The voltammetric and DFT results signify that the mechanism of electrochemical oxidation of all compounds involve the conversion of carbonyl-methyne-phenyl segment or methylene group in free radical. This conversion proceeds by the loss of one proton one electron process.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Voltammetric and Quantum Investigation of Selected Succinimides",
pages = "4297-4285",
number = "5",
volume = "13",
doi = "10.20964/2018.05.54"
}

Božić, B., Lović, J., Banjac, N., Vitnik, Ž., Vitnik, V., Mijin, D., Ušćumlić, G.,& Avramov-Ivić, M.. (2018). Voltammetric and Quantum Investigation of Selected Succinimides. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 13(5), 4285-4297.
https://doi.org/10.20964/2018.05.54

Božić B, Lović J, Banjac N, Vitnik Ž, Vitnik V, Mijin D, Ušćumlić G, Avramov-Ivić M. Voltammetric and Quantum Investigation of Selected Succinimides. in International Journal of Electrochemical Science. 2018;13(5):4285-4297.
doi:10.20964/2018.05.54 .

Božić, Bojan, Lović, Jelena, Banjac, Nebojša, Vitnik, Željko, Vitnik, Vesna, Mijin, Dušan, Ušćumlić, Gordana, Avramov-Ivić, Milka, "Voltammetric and Quantum Investigation of Selected Succinimides" in International Journal of Electrochemical Science, 13, no. 5 (2018):4285-4297,
https://doi.org/10.20964/2018.05.54 . .

TY  - JOUR
AU  - Majstorović-Necković, Jelena B.
AU  - Pavlović, Marko D.
AU  - Dojčinović, Marina
AU  - Martinović, Sanja M.
AU  - Vlahović, Milica M.
AU  - Volkov-Husović, Tatjana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3809
AB  - Using domestic zeolite from Igroš as row material for ceramic samples for application in condition of cavitation erosion. Samples based on talc with 15 % of zeolite, from Igroš, sintered at 1200oC were used in this investigation. The ultrasonic vibratory cavitation set up with stacionary specimen was used. Mass loss was measured and degradation level of the samples using image analysis and Young modulus of elasticity. Obtained results showed good resistance of the sample to the cavitation erosion, which give the possibility for possible future application of ceramic samples based on talc and yeolite in different conditions where cavitation erosion is expected.
AB  - U radu su prezentirani rezultati istraživanja korišćenja domaćeg zeolita sa ležišta 'Igroš' za izradu keramičkih uzoraka i primenu u uslovima dejstva kavitacije. Za ispitivanja su korišćeni uzorci talka sa 15% zeolita iz domaćeg ležišta IGROŠ (Brus) sinterovani na 1200oC. Za određivanje otpornosti na dejstvo kavitacije korišćena je ultrazvučna vibraciona metoda sa stacionarnim uzorkom. Gubitak mase i nivo degradacije površine uzoraka praćeni su primenom analize slike i Jungovog modula elastičnosti. Rezultati ispitivanja pokazali su dobru otpornost keramike na dejstvo kavitacije na bazi talka i zeolita što ukazuje na mogućnost primene u različitim oblastima industrije gde se očekuje prisustvo razaranja pod dejstvom kavitacije.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Cavitation of refratory samples based on talc and domestic zeolite
T1  - Ispitivanje vatrostalnih uzoraka na bazi talka i domaćeg zeolita na dejstvo kavitacije
EP  - 369
IS  - 3
SP  - 364
VL  - 73
DO  - 10.5937/tehnika1803364M
ER  - 

@article{
author = "Majstorović-Necković, Jelena B. and Pavlović, Marko D. and Dojčinović, Marina and Martinović, Sanja M. and Vlahović, Milica M. and Volkov-Husović, Tatjana",
year = "2018",
abstract = "Using domestic zeolite from Igroš as row material for ceramic samples for application in condition of cavitation erosion. Samples based on talc with 15 % of zeolite, from Igroš, sintered at 1200oC were used in this investigation. The ultrasonic vibratory cavitation set up with stacionary specimen was used. Mass loss was measured and degradation level of the samples using image analysis and Young modulus of elasticity. Obtained results showed good resistance of the sample to the cavitation erosion, which give the possibility for possible future application of ceramic samples based on talc and yeolite in different conditions where cavitation erosion is expected., U radu su prezentirani rezultati istraživanja korišćenja domaćeg zeolita sa ležišta 'Igroš' za izradu keramičkih uzoraka i primenu u uslovima dejstva kavitacije. Za ispitivanja su korišćeni uzorci talka sa 15% zeolita iz domaćeg ležišta IGROŠ (Brus) sinterovani na 1200oC. Za određivanje otpornosti na dejstvo kavitacije korišćena je ultrazvučna vibraciona metoda sa stacionarnim uzorkom. Gubitak mase i nivo degradacije površine uzoraka praćeni su primenom analize slike i Jungovog modula elastičnosti. Rezultati ispitivanja pokazali su dobru otpornost keramike na dejstvo kavitacije na bazi talka i zeolita što ukazuje na mogućnost primene u različitim oblastima industrije gde se očekuje prisustvo razaranja pod dejstvom kavitacije.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Cavitation of refratory samples based on talc and domestic zeolite, Ispitivanje vatrostalnih uzoraka na bazi talka i domaćeg zeolita na dejstvo kavitacije",
pages = "369-364",
number = "3",
volume = "73",
doi = "10.5937/tehnika1803364M"
}

Majstorović-Necković, J. B., Pavlović, M. D., Dojčinović, M., Martinović, S. M., Vlahović, M. M.,& Volkov-Husović, T.. (2018). Cavitation of refratory samples based on talc and domestic zeolite. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(3), 364-369.
https://doi.org/10.5937/tehnika1803364M

Majstorović-Necković JB, Pavlović MD, Dojčinović M, Martinović SM, Vlahović MM, Volkov-Husović T. Cavitation of refratory samples based on talc and domestic zeolite. in Tehnika. 2018;73(3):364-369.
doi:10.5937/tehnika1803364M .

Majstorović-Necković, Jelena B., Pavlović, Marko D., Dojčinović, Marina, Martinović, Sanja M., Vlahović, Milica M., Volkov-Husović, Tatjana, "Cavitation of refratory samples based on talc and domestic zeolite" in Tehnika, 73, no. 3 (2018):364-369,
https://doi.org/10.5937/tehnika1803364M . .

TY  - JOUR
AU  - Stević, Zoran
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Dimitrijević, Stevan
AU  - Ponomaryova, Elena
AU  - Volkov-Husović, Tatjana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3947
AB  - Pulse-reverse power modes are used in galvanotechniques in order to obtain coatings with better characteristics in terms of gloss, adhesion, tracking sharp edges and uniform distribution of deposits on complex shape objects, compared with the coatings produced by constant current modes. Pulse-reverse modes also allow the use of a higher current density, and thus the production speed of electroplating cells increases. Systems for standard electroplating of copper, silver and gold are optimised by the suitable choice of duration and intensity of the pulses. It is shown that coatings with satisfactory quality can be deposited using higher current density, different modes of pulsed current in a very short period of time, without expensive and often dangerous additives in the electrolyte. Parameters of the model for certain electrochemical systems were determined by modelling and computer simulation, so the system behaviour under different circumstances becomes predictive.
PB  - Carl Hanser Verlag
T2  - International Journal of Materials Research
T1  - Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition
EP  - 521
IS  - 6
SP  - 514
VL  - 109
DO  - 10.3139/146.111636
ER  - 

@article{
author = "Stević, Zoran and Vlahović, Milica and Martinović, Sanja and Dimitrijević, Stevan and Ponomaryova, Elena and Volkov-Husović, Tatjana",
year = "2018",
abstract = "Pulse-reverse power modes are used in galvanotechniques in order to obtain coatings with better characteristics in terms of gloss, adhesion, tracking sharp edges and uniform distribution of deposits on complex shape objects, compared with the coatings produced by constant current modes. Pulse-reverse modes also allow the use of a higher current density, and thus the production speed of electroplating cells increases. Systems for standard electroplating of copper, silver and gold are optimised by the suitable choice of duration and intensity of the pulses. It is shown that coatings with satisfactory quality can be deposited using higher current density, different modes of pulsed current in a very short period of time, without expensive and often dangerous additives in the electrolyte. Parameters of the model for certain electrochemical systems were determined by modelling and computer simulation, so the system behaviour under different circumstances becomes predictive.",
publisher = "Carl Hanser Verlag",
journal = "International Journal of Materials Research",
title = "Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition",
pages = "521-514",
number = "6",
volume = "109",
doi = "10.3139/146.111636"
}

Stević, Z., Vlahović, M., Martinović, S., Dimitrijević, S., Ponomaryova, E.,& Volkov-Husović, T.. (2018). Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition. in International Journal of Materials Research
Carl Hanser Verlag., 109(6), 514-521.
https://doi.org/10.3139/146.111636

Stević Z, Vlahović M, Martinović S, Dimitrijević S, Ponomaryova E, Volkov-Husović T. Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition. in International Journal of Materials Research. 2018;109(6):514-521.
doi:10.3139/146.111636 .

Stević, Zoran, Vlahović, Milica, Martinović, Sanja, Dimitrijević, Stevan, Ponomaryova, Elena, Volkov-Husović, Tatjana, "Modelling, simulation and optimisation of pulse-reverse regime of copper, silver and gold electrodeposition" in International Journal of Materials Research, 109, no. 6 (2018):514-521,
https://doi.org/10.3139/146.111636 . .

TY  - CONF
AU  - Avramov Ivić, Milka
AU  - Lović, Jelena
AU  - Lađarević, Jelena
AU  - Mijin, Dušan
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Vuković, Dragan
AU  - Petrović, Slobodan
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6746
AB  - Esomeprazole has been shown to be the most effective oral PPI for controlling intragastric pH. The persistence of esomeprasole in environmental systems could be solved by different types of its degradation. In this work electrocatalytic degradation of esomeprasole has been investigated in the presence of sodium sulfate and sodium chloride using IrOx electrode and was monitored using UV-Vis spectrophotometer at 303 nm. Also the electro degradation process was examined and on Au electrode. NanoScope III A (Veeco, USA) microscope was used to study the morphology of Esomeprazole on the gold surface by atomic force microscopy. By optical microscopy the
morphology of Esomeprazole dissolved in human serum on the gold surface was studied as well.
AB  - Ezomeprazol je poznat kao najefikasniji lek , tj. inhibitor protonske pumpe u
kontroli intragastricne vrednosti pH. Njegovo prisustvo u vodenim tokovima i
zemljištu se resava osmišljavanjem novih postupaka degradacije. U ovom radu
elektrokatalitiþka degradacija ezomeprazola je prouþavana u natrijum sulfatu i
natrijum hloridu na IrOx elektrodi. Reakcija je praüena korišüenjem UV-Vis
spektrofotometra na 303 nm. Takoÿe je prouþavana degradacija ezomeprazola
na elektrodi od zlata. NanoScope III A (Veeco, USA) mikroskop je korišüen u
prouþavanju morfologije ezomeprazola na površini eelektrode od zlata
mikroskopijom mneÿuatomskih sila. Optiþkom mikroskopijom je ispitivana
morfologija ezomeprazola na površini eelektrode od zlata u prisustvu humanog
seruma.
PB  - Podgorica : Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine
C3  - Knjiga radova / Četvrti Međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara = Proceedings / Fourth International symposium on corrosion and materials protection, environmental protection and protection against fire, Bar, 18-21. septembar 2018. godine
T1  - Electrochemical degradation of esomeprasole on different electrodes in a sense of environment protection
T1  - Elektrohemijska degradacija esomeprazola na različitim elektrodama u cilju zaštite životne sredine
EP  - 65
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6746
ER  - 

@conference{
author = "Avramov Ivić, Milka and Lović, Jelena and Lađarević, Jelena and Mijin, Dušan and Stevanović, Sanja and Nikolić, Nebojša and Vuković, Dragan and Petrović, Slobodan",
year = "2018",
abstract = "Esomeprazole has been shown to be the most effective oral PPI for controlling intragastric pH. The persistence of esomeprasole in environmental systems could be solved by different types of its degradation. In this work electrocatalytic degradation of esomeprasole has been investigated in the presence of sodium sulfate and sodium chloride using IrOx electrode and was monitored using UV-Vis spectrophotometer at 303 nm. Also the electro degradation process was examined and on Au electrode. NanoScope III A (Veeco, USA) microscope was used to study the morphology of Esomeprazole on the gold surface by atomic force microscopy. By optical microscopy the
morphology of Esomeprazole dissolved in human serum on the gold surface was studied as well., Ezomeprazol je poznat kao najefikasniji lek , tj. inhibitor protonske pumpe u
kontroli intragastricne vrednosti pH. Njegovo prisustvo u vodenim tokovima i
zemljištu se resava osmišljavanjem novih postupaka degradacije. U ovom radu
elektrokatalitiþka degradacija ezomeprazola je prouþavana u natrijum sulfatu i
natrijum hloridu na IrOx elektrodi. Reakcija je praüena korišüenjem UV-Vis
spektrofotometra na 303 nm. Takoÿe je prouþavana degradacija ezomeprazola
na elektrodi od zlata. NanoScope III A (Veeco, USA) mikroskop je korišüen u
prouþavanju morfologije ezomeprazola na površini eelektrode od zlata
mikroskopijom mneÿuatomskih sila. Optiþkom mikroskopijom je ispitivana
morfologija ezomeprazola na površini eelektrode od zlata u prisustvu humanog
seruma.",
publisher = "Podgorica : Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine",
journal = "Knjiga radova / Četvrti Međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara = Proceedings / Fourth International symposium on corrosion and materials protection, environmental protection and protection against fire, Bar, 18-21. septembar 2018. godine",
title = "Electrochemical degradation of esomeprasole on different electrodes in a sense of environment protection, Elektrohemijska degradacija esomeprazola na različitim elektrodama u cilju zaštite životne sredine",
pages = "65-61",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6746"
}

Avramov Ivić, M., Lović, J., Lađarević, J., Mijin, D., Stevanović, S., Nikolić, N., Vuković, D.,& Petrović, S.. (2018). Electrochemical degradation of esomeprasole on different electrodes in a sense of environment protection. in Knjiga radova / Četvrti Međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara = Proceedings / Fourth International symposium on corrosion and materials protection, environmental protection and protection against fire, Bar, 18-21. septembar 2018. godine
Podgorica : Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine., 61-65.
https://hdl.handle.net/21.15107/rcub_technorep_6746

Avramov Ivić M, Lović J, Lađarević J, Mijin D, Stevanović S, Nikolić N, Vuković D, Petrović S. Electrochemical degradation of esomeprasole on different electrodes in a sense of environment protection. in Knjiga radova / Četvrti Međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara = Proceedings / Fourth International symposium on corrosion and materials protection, environmental protection and protection against fire, Bar, 18-21. septembar 2018. godine. 2018;:61-65.
https://hdl.handle.net/21.15107/rcub_technorep_6746 .

Avramov Ivić, Milka, Lović, Jelena, Lađarević, Jelena, Mijin, Dušan, Stevanović, Sanja, Nikolić, Nebojša, Vuković, Dragan, Petrović, Slobodan, "Electrochemical degradation of esomeprasole on different electrodes in a sense of environment protection" in Knjiga radova / Četvrti Međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara = Proceedings / Fourth International symposium on corrosion and materials protection, environmental protection and protection against fire, Bar, 18-21. septembar 2018. godine (2018):61-65,
https://hdl.handle.net/21.15107/rcub_technorep_6746 .

TY  - JOUR
AU  - Krstajić-Pajić, Mila
AU  - Stevanović, Sanja
AU  - Radmilović, Vuk
AU  - Gavrilović-Wohlmuther, Aleksandra
AU  - Rogan, Jelena
AU  - Radmilović, Velimir R.
AU  - Jovanović, Vladislava M.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3832
AB  - PtAu systems are recognized as good catalysts for the oxidation of formic acid electrooxidation, which is investigated as a possible anodic reaction in low-temperature fuel cells. In this research, bimetallic PtAu nanoparticles, supported on high area carbon Vulcan XC-72R, were synthesized by water in oil microemulsion method. The precursor reduction process took place in a single microemulsion, simultaneously, in the presence of 35% of HCl in the water phase, as a capping agent. Electrochemical behavior of the PtAu/C catalyst was investigated at as prepared electrodes by cyclic voltammetry in 0.5M H2SO4 as a supporting electrolyte, and also in the oxidation of adsorbed CO. The results were compared to the Pt/C catalyst prepared by the same synthesis procedure. PtAu/C catalyst powder was also characterized by X-Ray Diffraction (XRD), High Resolution Transmission Electron Microscopy (HRTEM) and Energy Dispersive X-Ray Spectroscopy (EDS). Average particle diameter, of 2nm, was calculated from XRD data, which is close to the value of 2.82 nm obtained from TEM images. Compared to identically synthesized Pt nanoparticles, the bimetallic ones are significantly smaller. EDS maps of PtAu/C sample confirm the presence of both elements, and indicate a very fine distribution of Au in the sample. Elemental composition of about 20% Au and 80% Pt was also determined from these maps. Prepared catalyst was tested for formic acid electro-oxidation in terms of its activity and stability over the long term cycling. The voltammograms recorded indicate the change of reaction mechanism and better utilization of the catalyst surface in comparison to Pt/C.
AB  - PtAu sistemi se smatraju veoma dobrim katalizatorima za elektrooksidaciju mravlje kiseline, kao moguće anodne reakcije u niskotemperaturnim gorivnim galvanskim spregovima. U ovom radu bimetalne PtAu nanočestice sintetizovane su mikromulzionim postupkom, i u toku sinteze nanete na ugljenični nosač Vulcan XC-72R. Procesi redukcije prekursora odigravaju se simultano, unutar vodene faze iste mikroemulzije, u prisustvu 35% HCl. Elektrohemijske karakteristike katalizatora ispitivane su cikličnom voltametrijomv na 'as prepared' elektrodama u 0.5M H2SO4 kao osnovnom elektrolitu, kao i prilikom oksidacije adsorbovanog CO. Rezultati su upoređeni sa Pt/C katalizatorom sintetizovanim istim postupkom i pod istovetnim uslovima. Pripremljeni PtAu/C prah okarakterisan je takođe difrakcijom X-zraka, transmisionom elektronskom mikroskopijom i energetski disperzionom spektroskoijom. Veličina čestice određena analizom difraktograma X-zraka iznosi 2nm, što je blisko vrednosti dobijenoj analizom TEM snimaka od 2.82 nm. U poređenju sa Pt nanočesticama sintetizovanim na isti način, bimetalne nanočestice su znatno manjeg prečnika. Mape uzorka PtAu/C dobijene energetski disperzionom spektroskopijom potvrđuju prisustvo oba elementa i pokazuju veoma finu distribuciju Au u uzorku. Analizo mapa utvrđeno je i da je katalizator sastava 20% Au i 80% Pt. Konačno, ispitane su aktivnost i stabilnost bimetalnog katalizatora za oksidaciju mravlje kiseline. Snimljeni voltamogrami ukazuju na promenu reakcionog mehanizma i bolje iskorišćenje površine katalizatora u poređenju ra Pt/C katalizatorom sintetizovanim istim postupkom.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - PtAu catalyst with enhanced activity for formic acid oxidation
T1  - PtAu katalizator sa poboljšanom aktivnošću za reakciju oksidacije mravlje kiseline
EP  - 166
IS  - 2
SP  - 159
VL  - 59
DO  - 10.5937/ZasMat1802159K
ER  - 

@article{
author = "Krstajić-Pajić, Mila and Stevanović, Sanja and Radmilović, Vuk and Gavrilović-Wohlmuther, Aleksandra and Rogan, Jelena and Radmilović, Velimir R. and Jovanović, Vladislava M.",
year = "2018",
abstract = "PtAu systems are recognized as good catalysts for the oxidation of formic acid electrooxidation, which is investigated as a possible anodic reaction in low-temperature fuel cells. In this research, bimetallic PtAu nanoparticles, supported on high area carbon Vulcan XC-72R, were synthesized by water in oil microemulsion method. The precursor reduction process took place in a single microemulsion, simultaneously, in the presence of 35% of HCl in the water phase, as a capping agent. Electrochemical behavior of the PtAu/C catalyst was investigated at as prepared electrodes by cyclic voltammetry in 0.5M H2SO4 as a supporting electrolyte, and also in the oxidation of adsorbed CO. The results were compared to the Pt/C catalyst prepared by the same synthesis procedure. PtAu/C catalyst powder was also characterized by X-Ray Diffraction (XRD), High Resolution Transmission Electron Microscopy (HRTEM) and Energy Dispersive X-Ray Spectroscopy (EDS). Average particle diameter, of 2nm, was calculated from XRD data, which is close to the value of 2.82 nm obtained from TEM images. Compared to identically synthesized Pt nanoparticles, the bimetallic ones are significantly smaller. EDS maps of PtAu/C sample confirm the presence of both elements, and indicate a very fine distribution of Au in the sample. Elemental composition of about 20% Au and 80% Pt was also determined from these maps. Prepared catalyst was tested for formic acid electro-oxidation in terms of its activity and stability over the long term cycling. The voltammograms recorded indicate the change of reaction mechanism and better utilization of the catalyst surface in comparison to Pt/C., PtAu sistemi se smatraju veoma dobrim katalizatorima za elektrooksidaciju mravlje kiseline, kao moguće anodne reakcije u niskotemperaturnim gorivnim galvanskim spregovima. U ovom radu bimetalne PtAu nanočestice sintetizovane su mikromulzionim postupkom, i u toku sinteze nanete na ugljenični nosač Vulcan XC-72R. Procesi redukcije prekursora odigravaju se simultano, unutar vodene faze iste mikroemulzije, u prisustvu 35% HCl. Elektrohemijske karakteristike katalizatora ispitivane su cikličnom voltametrijomv na 'as prepared' elektrodama u 0.5M H2SO4 kao osnovnom elektrolitu, kao i prilikom oksidacije adsorbovanog CO. Rezultati su upoređeni sa Pt/C katalizatorom sintetizovanim istim postupkom i pod istovetnim uslovima. Pripremljeni PtAu/C prah okarakterisan je takođe difrakcijom X-zraka, transmisionom elektronskom mikroskopijom i energetski disperzionom spektroskoijom. Veličina čestice određena analizom difraktograma X-zraka iznosi 2nm, što je blisko vrednosti dobijenoj analizom TEM snimaka od 2.82 nm. U poređenju sa Pt nanočesticama sintetizovanim na isti način, bimetalne nanočestice su znatno manjeg prečnika. Mape uzorka PtAu/C dobijene energetski disperzionom spektroskopijom potvrđuju prisustvo oba elementa i pokazuju veoma finu distribuciju Au u uzorku. Analizo mapa utvrđeno je i da je katalizator sastava 20% Au i 80% Pt. Konačno, ispitane su aktivnost i stabilnost bimetalnog katalizatora za oksidaciju mravlje kiseline. Snimljeni voltamogrami ukazuju na promenu reakcionog mehanizma i bolje iskorišćenje površine katalizatora u poređenju ra Pt/C katalizatorom sintetizovanim istim postupkom.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "PtAu catalyst with enhanced activity for formic acid oxidation, PtAu katalizator sa poboljšanom aktivnošću za reakciju oksidacije mravlje kiseline",
pages = "166-159",
number = "2",
volume = "59",
doi = "10.5937/ZasMat1802159K"
}

Krstajić-Pajić, M., Stevanović, S., Radmilović, V., Gavrilović-Wohlmuther, A., Rogan, J., Radmilović, V. R.,& Jovanović, V. M.. (2018). PtAu catalyst with enhanced activity for formic acid oxidation. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 59(2), 159-166.
https://doi.org/10.5937/ZasMat1802159K

Krstajić-Pajić M, Stevanović S, Radmilović V, Gavrilović-Wohlmuther A, Rogan J, Radmilović VR, Jovanović VM. PtAu catalyst with enhanced activity for formic acid oxidation. in Zaštita materijala. 2018;59(2):159-166.
doi:10.5937/ZasMat1802159K .

Krstajić-Pajić, Mila, Stevanović, Sanja, Radmilović, Vuk, Gavrilović-Wohlmuther, Aleksandra, Rogan, Jelena, Radmilović, Velimir R., Jovanović, Vladislava M., "PtAu catalyst with enhanced activity for formic acid oxidation" in Zaštita materijala, 59, no. 2 (2018):159-166,
https://doi.org/10.5937/ZasMat1802159K . .

TY  - JOUR
AU  - Tripković, Dušan
AU  - Stevanović, Sanja
AU  - Gavrilović, Aleksandra
AU  - Rogan, Jelena
AU  - Lačnjevac, Uroš
AU  - Kravić, Tamara
AU  - Jovanović, Vladislava M.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3978
AB  - In our previous paper, we described in detail studies of Sn influence on electrocatalytic activity of PtSn catalyst for CO and formic acid oxidation (StevanoviAc et al., J. Phys. Chem. C, 118 (2014) 278-289). The catalyst was composed of a Pt phase, Pt3Sn alloy and very small SnO2 particles. Different electrochemical treatment enabled studies of PtSn/C having Sn both in surface and subsurface layers and skeleton structure of this catalyst with Sn only in subsurface layers. The results obtained revealed the promotional effect of surface Sn whether alloyed or as oxide above all in preventing accumulation of CO and blocking the surface Pt atoms. As a consequence, in formic acid oxidation, the currents are not entering the plateau but increasing constantly until reaching a maximum. It was concluded that at lower potentials the effect of Sn on formic acid oxidation was predominantly electronic but with increasing the potential bi-functional mechanism prevailed due to the leading role of SnO2. This role of SnO2 is restated in the present study. Therefore, CO and formic acid oxidation were examined at PtSnO2/C catalyst. The catalyst was synthesised by the same microwave-assisted polyol procedure. According to XRD analysis, the catalyst is composed of a Pt phase and SnO2 phase. The reactions were examined on PtSnO2/C catalyst treated on the same way as PtSn/C. Comparing the results obtained, the role of SnO2 is confirmed and at the same time the significance of alloyed Sn and its electronic effect is revealed.
PB  - Springer, New York
T2  - Electrocatalysis
T1  - The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts
EP  - 85
IS  - 1
SP  - 76
VL  - 9
DO  - 10.1007/s12678-017-0424-4
ER  - 

@article{
author = "Tripković, Dušan and Stevanović, Sanja and Gavrilović, Aleksandra and Rogan, Jelena and Lačnjevac, Uroš and Kravić, Tamara and Jovanović, Vladislava M.",
year = "2018",
abstract = "In our previous paper, we described in detail studies of Sn influence on electrocatalytic activity of PtSn catalyst for CO and formic acid oxidation (StevanoviAc et al., J. Phys. Chem. C, 118 (2014) 278-289). The catalyst was composed of a Pt phase, Pt3Sn alloy and very small SnO2 particles. Different electrochemical treatment enabled studies of PtSn/C having Sn both in surface and subsurface layers and skeleton structure of this catalyst with Sn only in subsurface layers. The results obtained revealed the promotional effect of surface Sn whether alloyed or as oxide above all in preventing accumulation of CO and blocking the surface Pt atoms. As a consequence, in formic acid oxidation, the currents are not entering the plateau but increasing constantly until reaching a maximum. It was concluded that at lower potentials the effect of Sn on formic acid oxidation was predominantly electronic but with increasing the potential bi-functional mechanism prevailed due to the leading role of SnO2. This role of SnO2 is restated in the present study. Therefore, CO and formic acid oxidation were examined at PtSnO2/C catalyst. The catalyst was synthesised by the same microwave-assisted polyol procedure. According to XRD analysis, the catalyst is composed of a Pt phase and SnO2 phase. The reactions were examined on PtSnO2/C catalyst treated on the same way as PtSn/C. Comparing the results obtained, the role of SnO2 is confirmed and at the same time the significance of alloyed Sn and its electronic effect is revealed.",
publisher = "Springer, New York",
journal = "Electrocatalysis",
title = "The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts",
pages = "85-76",
number = "1",
volume = "9",
doi = "10.1007/s12678-017-0424-4"
}

Tripković, D., Stevanović, S., Gavrilović, A., Rogan, J., Lačnjevac, U., Kravić, T.,& Jovanović, V. M.. (2018). The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts. in Electrocatalysis
Springer, New York., 9(1), 76-85.
https://doi.org/10.1007/s12678-017-0424-4

Tripković D, Stevanović S, Gavrilović A, Rogan J, Lačnjevac U, Kravić T, Jovanović VM. The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts. in Electrocatalysis. 2018;9(1):76-85.
doi:10.1007/s12678-017-0424-4 .

Tripković, Dušan, Stevanović, Sanja, Gavrilović, Aleksandra, Rogan, Jelena, Lačnjevac, Uroš, Kravić, Tamara, Jovanović, Vladislava M., "The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts" in Electrocatalysis, 9, no. 1 (2018):76-85,
https://doi.org/10.1007/s12678-017-0424-4 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Anđelković, Boban D.
AU  - Petrović, Slobodan
AU  - Vuković, Dragan
AU  - Prlainović, Nevena
AU  - Mijin, Dušan
AU  - Nikolić, Nebojša
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3907
AB  - Glucose biosensor containing cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is constructed and already electrochemically tested. Now, the electrochemical behavior of biosensor in human serum is further investigated and supported by morphological characterization of layers for the first time. The morphology and microstructure of layers was examined by Fourier transformed infra red spectroscopy (FTIR), atomic force (AFM) and optical microscopy (OM). The electrochemical indication that the Cys-GA-GOx film on Au surface is not compact and that there were some bare regions which remain catalytically active is supported by AFM and OM results. The construction and the nature of bonding of Au-Cys-GA-GOx biosensor layers is confirmed by the FTIR study.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode
EP  - 12348
IS  - 12
SP  - 12340
VL  - 13
DO  - 10.20964/2018.12.59
ER  - 

@article{
author = "Lović, Jelena and Stevanović, Sanja and Anđelković, Boban D. and Petrović, Slobodan and Vuković, Dragan and Prlainović, Nevena and Mijin, Dušan and Nikolić, Nebojša and Avramov-Ivić, Milka",
year = "2018",
abstract = "Glucose biosensor containing cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is constructed and already electrochemically tested. Now, the electrochemical behavior of biosensor in human serum is further investigated and supported by morphological characterization of layers for the first time. The morphology and microstructure of layers was examined by Fourier transformed infra red spectroscopy (FTIR), atomic force (AFM) and optical microscopy (OM). The electrochemical indication that the Cys-GA-GOx film on Au surface is not compact and that there were some bare regions which remain catalytically active is supported by AFM and OM results. The construction and the nature of bonding of Au-Cys-GA-GOx biosensor layers is confirmed by the FTIR study.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode",
pages = "12348-12340",
number = "12",
volume = "13",
doi = "10.20964/2018.12.59"
}

Lović, J., Stevanović, S., Anđelković, B. D., Petrović, S., Vuković, D., Prlainović, N., Mijin, D., Nikolić, N.,& Avramov-Ivić, M.. (2018). Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 13(12), 12340-12348.
https://doi.org/10.20964/2018.12.59

Lović J, Stevanović S, Anđelković BD, Petrović S, Vuković D, Prlainović N, Mijin D, Nikolić N, Avramov-Ivić M. Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode. in International Journal of Electrochemical Science. 2018;13(12):12340-12348.
doi:10.20964/2018.12.59 .

Lović, Jelena, Stevanović, Sanja, Anđelković, Boban D., Petrović, Slobodan, Vuković, Dragan, Prlainović, Nevena, Mijin, Dušan, Nikolić, Nebojša, Avramov-Ivić, Milka, "Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode" in International Journal of Electrochemical Science, 13, no. 12 (2018):12340-12348,
https://doi.org/10.20964/2018.12.59 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Trišović, Nemanja
AU  - Antanasijević, Jelena
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4009
AB  - Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.
PB  - Int Assoc Physical Chemists-Iapc, Zagreb
T2  - Journal of Electrochemical Science and Engineering
T1  - Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution
EP  - 170
IS  - 2
SP  - 163
VL  - 8
DO  - 10.5599/jese.481
ER  - 

@article{
author = "Lović, Jelena and Trišović, Nemanja and Antanasijević, Jelena and Avramov-Ivić, Milka",
year = "2018",
abstract = "Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.",
publisher = "Int Assoc Physical Chemists-Iapc, Zagreb",
journal = "Journal of Electrochemical Science and Engineering",
title = "Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution",
pages = "170-163",
number = "2",
volume = "8",
doi = "10.5599/jese.481"
}

Lović, J., Trišović, N., Antanasijević, J.,& Avramov-Ivić, M.. (2018). Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution. in Journal of Electrochemical Science and Engineering
Int Assoc Physical Chemists-Iapc, Zagreb., 8(2), 163-170.
https://doi.org/10.5599/jese.481

Lović J, Trišović N, Antanasijević J, Avramov-Ivić M. Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution. in Journal of Electrochemical Science and Engineering. 2018;8(2):163-170.
doi:10.5599/jese.481 .

Lović, Jelena, Trišović, Nemanja, Antanasijević, Jelena, Avramov-Ivić, Milka, "Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution" in Journal of Electrochemical Science and Engineering, 8, no. 2 (2018):163-170,
https://doi.org/10.5599/jese.481 . .

TY  - JOUR
AU  - Mijailović, Daniel
AU  - Vukčević, Marija
AU  - Stević, Zoran
AU  - Kalijadis, Ana
AU  - Stojanović, Dušica
AU  - Panić, Vladimir
AU  - Uskoković, Petar
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3720
AB  - Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers
EP  - A1068
IS  - 6
SP  - A1061
VL  - 164
DO  - 10.1149/2.0581706jes
ER  - 

@article{
author = "Mijailović, Daniel and Vukčević, Marija and Stević, Zoran and Kalijadis, Ana and Stojanović, Dušica and Panić, Vladimir and Uskoković, Petar",
year = "2017",
abstract = "Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers",
pages = "A1068-A1061",
number = "6",
volume = "164",
doi = "10.1149/2.0581706jes"
}

Mijailović, D., Vukčević, M., Stević, Z., Kalijadis, A., Stojanović, D., Panić, V.,& Uskoković, P.. (2017). Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 164(6), A1061-A1068.
https://doi.org/10.1149/2.0581706jes

Mijailović D, Vukčević M, Stević Z, Kalijadis A, Stojanović D, Panić V, Uskoković P. Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society. 2017;164(6):A1061-A1068.
doi:10.1149/2.0581706jes .

Mijailović, Daniel, Vukčević, Marija, Stević, Zoran, Kalijadis, Ana, Stojanović, Dušica, Panić, Vladimir, Uskoković, Petar, "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers" in Journal of the Electrochemical Society, 164, no. 6 (2017):A1061-A1068,
https://doi.org/10.1149/2.0581706jes . .

TY  - JOUR
AU  - Pavlović, Marko D.
AU  - Dojčinović, Marina
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Stević, Zoran
AU  - Jovanović, Marina
AU  - Volkov-Husović, Tatjana
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3547
AB  - Mechanical shock of zircon based ceramic induced by cavitation erosion testing was investigated in this study. Several parameters were followed in order to determine level of material degradation during the cavitation erosion testing. Mass loss was taken as a conventional criterion for material degradation, while the level of surface degradation was evaluated by image and thermal imaging analyses. Results show high cavitation resistance of zircon ceramics and their suitability when vigorous cavitation erosion environment is expected.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Determination of Degradation Level during Cavitation Erosion of Zircon Based Ceramic
EP  - 185
IS  - 2
SP  - 175
VL  - 49
DO  - 10.2298/SOS1702175P
ER  - 

@article{
author = "Pavlović, Marko D. and Dojčinović, Marina and Martinović, Sanja and Vlahović, Milica and Stević, Zoran and Jovanović, Marina and Volkov-Husović, Tatjana",
year = "2017",
abstract = "Mechanical shock of zircon based ceramic induced by cavitation erosion testing was investigated in this study. Several parameters were followed in order to determine level of material degradation during the cavitation erosion testing. Mass loss was taken as a conventional criterion for material degradation, while the level of surface degradation was evaluated by image and thermal imaging analyses. Results show high cavitation resistance of zircon ceramics and their suitability when vigorous cavitation erosion environment is expected.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Determination of Degradation Level during Cavitation Erosion of Zircon Based Ceramic",
pages = "185-175",
number = "2",
volume = "49",
doi = "10.2298/SOS1702175P"
}

Pavlović, M. D., Dojčinović, M., Martinović, S., Vlahović, M., Stević, Z., Jovanović, M.,& Volkov-Husović, T.. (2017). Determination of Degradation Level during Cavitation Erosion of Zircon Based Ceramic. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(2), 175-185.
https://doi.org/10.2298/SOS1702175P

Pavlović MD, Dojčinović M, Martinović S, Vlahović M, Stević Z, Jovanović M, Volkov-Husović T. Determination of Degradation Level during Cavitation Erosion of Zircon Based Ceramic. in Science of Sintering. 2017;49(2):175-185.
doi:10.2298/SOS1702175P .

Pavlović, Marko D., Dojčinović, Marina, Martinović, Sanja, Vlahović, Milica, Stević, Zoran, Jovanović, Marina, Volkov-Husović, Tatjana, "Determination of Degradation Level during Cavitation Erosion of Zircon Based Ceramic" in Science of Sintering, 49, no. 2 (2017):175-185,
https://doi.org/10.2298/SOS1702175P . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Petrović, Slobodan
AU  - Vuković, Dragan
AU  - Prlainović, Nevena
AU  - Mijin, Dušan
AU  - Avramov-Ivić, Milka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3570
AB  - The method to develop a stable glucose biosensor with successive attachment of cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is presented. The cyclic voltammetry (CV) suggests the diffusion control of the glucose oxidation. The obtained biosensor shows a fast electron transfer of k(0) = 20.4 s(-1), high affinity for glucose with the apparent MichaelisMenten constant K-M(app) = 1.15 mM, a low detection limit of 0.94 mM in a linear range 1.5-7 mM. This biosensor exhibits good stability and reproducibility. Good biocompatibility of modified electrode surface, which enhances the covalent bonded enzyme and consequently glucose oxidation, resulted in biosensor with excellent performances. Biosensor was tested in samples containing human serum.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode
EP  - 5817
IS  - 7
SP  - 5806
VL  - 12
DO  - 10.20964/2017.07.65
ER  - 

@article{
author = "Lović, Jelena and Stevanović, Sanja and Nikolić, Nebojša and Petrović, Slobodan and Vuković, Dragan and Prlainović, Nevena and Mijin, Dušan and Avramov-Ivić, Milka",
year = "2017",
abstract = "The method to develop a stable glucose biosensor with successive attachment of cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is presented. The cyclic voltammetry (CV) suggests the diffusion control of the glucose oxidation. The obtained biosensor shows a fast electron transfer of k(0) = 20.4 s(-1), high affinity for glucose with the apparent MichaelisMenten constant K-M(app) = 1.15 mM, a low detection limit of 0.94 mM in a linear range 1.5-7 mM. This biosensor exhibits good stability and reproducibility. Good biocompatibility of modified electrode surface, which enhances the covalent bonded enzyme and consequently glucose oxidation, resulted in biosensor with excellent performances. Biosensor was tested in samples containing human serum.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode",
pages = "5817-5806",
number = "7",
volume = "12",
doi = "10.20964/2017.07.65"
}

Lović, J., Stevanović, S., Nikolić, N., Petrović, S., Vuković, D., Prlainović, N., Mijin, D.,& Avramov-Ivić, M.. (2017). Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 12(7), 5806-5817.
https://doi.org/10.20964/2017.07.65

Lović J, Stevanović S, Nikolić N, Petrović S, Vuković D, Prlainović N, Mijin D, Avramov-Ivić M. Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode. in International Journal of Electrochemical Science. 2017;12(7):5806-5817.
doi:10.20964/2017.07.65 .

Lović, Jelena, Stevanović, Sanja, Nikolić, Nebojša, Petrović, Slobodan, Vuković, Dragan, Prlainović, Nevena, Mijin, Dušan, Avramov-Ivić, Milka, "Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode" in International Journal of Electrochemical Science, 12, no. 7 (2017):5806-5817,
https://doi.org/10.20964/2017.07.65 . .

TY  - JOUR
AU  - Košević, Milica
AU  - Šekularac, Gavrilo
AU  - Živković, Ljiljana S.
AU  - Panić, Vladimir
AU  - Nikolic, Branislav
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5858
AB  - TiO2 powder was synthesized by a forced hydrolysis process and used for the synthesis of Pt/TiO2 composite that is to be foreseen as an advanced electrode material. Pt was incorporated into the synthesized TiO2 from a Pt colloidal dispersion as a precursor prepared by a microwave- assisted polyol process. Physicochemical properties of TiO2 and TiO2- supported Pt were investigated by scanning electron microscopy, dynamic light scattering and X- ray spectroscopy and diffraction techniques. The properties of Pt/TiO2 composite are correlated to the basic voltammetric response of its thin-layer form. It was found that subsequent thermal treatment of synthesized TiO2, which caused crystallization into mainly rutile phase, is required for appropriate Pt incorporation. Although being appropriately loaded by Pt, and the voltammetric response is typical for Pt-based material, the voltammetry of Pt/TiO2 corresponded to much lower loadings.The possibility for Pt particles to be trapped inside TiO2 agglomerates is indicated. The catalyst usage from the synthesized Pt/TiO2 was found quite moderate due to this trapping.
PB  - Croatian Chemical Society
T2  - Croatica Chemica Acta
T1  - TiO2 From Colloidal Dispersion as Support in Pt/TiO2 Nanocomposite for Electrochemical Applications
EP  - 258
IS  - 2
SP  - 251
VL  - 90
DO  - 10.5562/cca3175
ER  - 

@article{
author = "Košević, Milica and Šekularac, Gavrilo and Živković, Ljiljana S. and Panić, Vladimir and Nikolic, Branislav",
year = "2017",
abstract = "TiO2 powder was synthesized by a forced hydrolysis process and used for the synthesis of Pt/TiO2 composite that is to be foreseen as an advanced electrode material. Pt was incorporated into the synthesized TiO2 from a Pt colloidal dispersion as a precursor prepared by a microwave- assisted polyol process. Physicochemical properties of TiO2 and TiO2- supported Pt were investigated by scanning electron microscopy, dynamic light scattering and X- ray spectroscopy and diffraction techniques. The properties of Pt/TiO2 composite are correlated to the basic voltammetric response of its thin-layer form. It was found that subsequent thermal treatment of synthesized TiO2, which caused crystallization into mainly rutile phase, is required for appropriate Pt incorporation. Although being appropriately loaded by Pt, and the voltammetric response is typical for Pt-based material, the voltammetry of Pt/TiO2 corresponded to much lower loadings.The possibility for Pt particles to be trapped inside TiO2 agglomerates is indicated. The catalyst usage from the synthesized Pt/TiO2 was found quite moderate due to this trapping.",
publisher = "Croatian Chemical Society",
journal = "Croatica Chemica Acta",
title = "TiO2 From Colloidal Dispersion as Support in Pt/TiO2 Nanocomposite for Electrochemical Applications",
pages = "258-251",
number = "2",
volume = "90",
doi = "10.5562/cca3175"
}

Košević, M., Šekularac, G., Živković, L. S., Panić, V.,& Nikolic, B.. (2017). TiO2 From Colloidal Dispersion as Support in Pt/TiO2 Nanocomposite for Electrochemical Applications. in Croatica Chemica Acta
Croatian Chemical Society., 90(2), 251-258.
https://doi.org/10.5562/cca3175

Košević M, Šekularac G, Živković LS, Panić V, Nikolic B. TiO2 From Colloidal Dispersion as Support in Pt/TiO2 Nanocomposite for Electrochemical Applications. in Croatica Chemica Acta. 2017;90(2):251-258.
doi:10.5562/cca3175 .

Košević, Milica, Šekularac, Gavrilo, Živković, Ljiljana S., Panić, Vladimir, Nikolic, Branislav, "TiO2 From Colloidal Dispersion as Support in Pt/TiO2 Nanocomposite for Electrochemical Applications" in Croatica Chemica Acta, 90, no. 2 (2017):251-258,
https://doi.org/10.5562/cca3175 . .

TY  - JOUR
AU  - Radosavljević, Kristina D.
AU  - Lović, Jelena
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
AU  - Jadranin, Milka
AU  - Mladenović, Aleksandar R.
AU  - Avramov-Ivić, Milka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3685
AB  - The electrodegradation of azithromycin was studied by its indirect oxidation using dimensionally stable Ti/RuO2 anode as catalyst in the electrolyte containing methanol, 0.05 M NaHCO3, sodium chloride and deionized water. The optimal conditions for galvanostatic electrodegradation for the azithromycin concentration of 0.472 mg cm(-3) were found to be NaCl concentration of 7 mg cm(-3) and the applied current of 300 mA. The differential pulse voltammetry using glassy carbon electrode was performed for the first time in the above-mentioned content of electrolyte for the nine concentration of azithromycin (0.075-0.675 mg cm(-3)) giving the limits of azithromycin detection and of quantification as: LOD 0.044 mg cm(-3) and LOQ 0.145 mg cm(-3). The calibration curve was constructed enabling the electrolyte analysis during its electrodegradation process. The electrolyte was analyzed by high-performance liquid chromatography and electrospray ionization time-of-flight mass spectrometry. The electrooxidation products were identified and after 180 min there was no azithromycin in the electrolyte while TOC analysis showed that 79% of azithromycin was mineralized. The proposed degradation scheme is presented.
PB  - Springer International Publishing Ag, Cham
T2  - Chemical Papers
T1  - Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis
EP  - 1224
IS  - 7
SP  - 1217
VL  - 71
DO  - 10.1007/s11696-016-0115-2
ER  - 

@article{
author = "Radosavljević, Kristina D. and Lović, Jelena and Mijin, Dušan and Petrović, Slobodan and Jadranin, Milka and Mladenović, Aleksandar R. and Avramov-Ivić, Milka",
year = "2017",
abstract = "The electrodegradation of azithromycin was studied by its indirect oxidation using dimensionally stable Ti/RuO2 anode as catalyst in the electrolyte containing methanol, 0.05 M NaHCO3, sodium chloride and deionized water. The optimal conditions for galvanostatic electrodegradation for the azithromycin concentration of 0.472 mg cm(-3) were found to be NaCl concentration of 7 mg cm(-3) and the applied current of 300 mA. The differential pulse voltammetry using glassy carbon electrode was performed for the first time in the above-mentioned content of electrolyte for the nine concentration of azithromycin (0.075-0.675 mg cm(-3)) giving the limits of azithromycin detection and of quantification as: LOD 0.044 mg cm(-3) and LOQ 0.145 mg cm(-3). The calibration curve was constructed enabling the electrolyte analysis during its electrodegradation process. The electrolyte was analyzed by high-performance liquid chromatography and electrospray ionization time-of-flight mass spectrometry. The electrooxidation products were identified and after 180 min there was no azithromycin in the electrolyte while TOC analysis showed that 79% of azithromycin was mineralized. The proposed degradation scheme is presented.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Chemical Papers",
title = "Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis",
pages = "1224-1217",
number = "7",
volume = "71",
doi = "10.1007/s11696-016-0115-2"
}

Radosavljević, K. D., Lović, J., Mijin, D., Petrović, S., Jadranin, M., Mladenović, A. R.,& Avramov-Ivić, M.. (2017). Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis. in Chemical Papers
Springer International Publishing Ag, Cham., 71(7), 1217-1224.
https://doi.org/10.1007/s11696-016-0115-2

Radosavljević KD, Lović J, Mijin D, Petrović S, Jadranin M, Mladenović AR, Avramov-Ivić M. Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis. in Chemical Papers. 2017;71(7):1217-1224.
doi:10.1007/s11696-016-0115-2 .

Radosavljević, Kristina D., Lović, Jelena, Mijin, Dušan, Petrović, Slobodan, Jadranin, Milka, Mladenović, Aleksandar R., Avramov-Ivić, Milka, "Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis" in Chemical Papers, 71, no. 7 (2017):1217-1224,
https://doi.org/10.1007/s11696-016-0115-2 . .

TY  - JOUR
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Ponomaryova, Elena
AU  - Ryzhkov, I. V.
AU  - Jovanović, M.
AU  - Busatlić, I.
AU  - Volkov-Husović, Tatjana
AU  - Stević, Zoran
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3580
AB  - The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash
EP  - 7299
IS  - 8
SP  - 7287
VL  - 12
DO  - 10.20964/2017.08.63
ER  - 

@article{
author = "Martinović, Sanja and Vlahović, Milica and Ponomaryova, Elena and Ryzhkov, I. V. and Jovanović, M. and Busatlić, I. and Volkov-Husović, Tatjana and Stević, Zoran",
year = "2017",
abstract = "The possibility of applying fly ash from power plants as a binder in supercapacitor electrodes based on activated carbon was investigated in this research. Based on the mechanical and electrical properties of the electrodes, the optimal ratio between fly ash and AC was determined. Supercapacitor electrodes were prepared in two ways: by pressing and by laser solidification. The preparation method significantly affected physical properties of the electrodes as well as the electrochemical behavior in supercapacitor setup. The electrodes were electrochemically tested by galvanostatic and potentiostatic methods and cyclic voltammetry. In order to improve the estimation of supercapacitor parameters, mathematical model that perfectly describes the behavior of investigated electrodes in aqueous solution of sodium nitrate was developed. The best results were obtained with laser-solidified electrode in 1M aqueous solution of NaNO3. Specific capacitance of 105 F/g, serial resistance of 0.57 Omega and self-discharge resistance of 95 Omega were achieved. Stability at high number of cycles proved to be very good. After 2000 cycles of CV at scan rate of 100 mV/s, specific capacitance fell by only 4.6 %.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash",
pages = "7299-7287",
number = "8",
volume = "12",
doi = "10.20964/2017.08.63"
}

Martinović, S., Vlahović, M., Ponomaryova, E., Ryzhkov, I. V., Jovanović, M., Busatlić, I., Volkov-Husović, T.,& Stević, Z.. (2017). Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 12(8), 7287-7299.
https://doi.org/10.20964/2017.08.63

Martinović S, Vlahović M, Ponomaryova E, Ryzhkov IV, Jovanović M, Busatlić I, Volkov-Husović T, Stević Z. Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash. in International Journal of Electrochemical Science. 2017;12(8):7287-7299.
doi:10.20964/2017.08.63 .

Martinović, Sanja, Vlahović, Milica, Ponomaryova, Elena, Ryzhkov, I. V., Jovanović, M., Busatlić, I., Volkov-Husović, Tatjana, Stević, Zoran, "Electrochemical Behavior of Supercapacitor Electrodes Based on Activated Carbon and Fly Ash" in International Journal of Electrochemical Science, 12, no. 8 (2017):7287-7299,
https://doi.org/10.20964/2017.08.63 . .

TY  - JOUR
AU  - Avramov-Ivić, Milka
AU  - Antanasijević, Jelena
AU  - Trišović, Nemanja
AU  - Antanasijević, Davor
AU  - Lović, Jelena
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3358
AB  - The electrochemical behavior of phenobarbital sodium (PBS), paracetamol (PCM) and their binary mixtures was investigated using cyclic voltammetry (CV) and square wave voltammetry (SWV) at a bare gold electrode in a 0.05 M bicarbonate solution. A calibration curve of PBS obtained by SWV had two linear ranges, from 1.0 to 3.0 mu M and from 5.0 to 35.0 mu M with a limit of quantification (LOQ) of 0.62 mu M and a limit of detection (LOD) of 0.19 mu M, while a calibration curve of PCM was determined within the range from 10.0 to 50.0 mu M with a LOQ of 8.53 mu M and a LOD of 2.56 mu M. Both drugs underwent oxidation by irreversible, diffusion controlled process. The SW voltammograms of the drug mixtures produced complex, overlapping profiles and a chemometric method was applied for their decomposition. Two different artificial neural network (ANN) architectures, namely back-propagation neural network (BPNN) and general regression neural network (GRNN) were employed for the simultaneous prediction of the concentrations of the drugs in a synthetic sample. The BPNN model had higher accuracy (mean absolute percentage error values were in the range of 3.6-8.4%) and thus it can be used for the simultaneous determination of PBS and PCM.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode
EP  - 5951
IS  - 7
SP  - 5935
VL  - 11
DO  - 10.20964/2016.07.48
ER  - 

@article{
author = "Avramov-Ivić, Milka and Antanasijević, Jelena and Trišović, Nemanja and Antanasijević, Davor and Lović, Jelena and Mijin, Dušan and Petrović, Slobodan",
year = "2016",
abstract = "The electrochemical behavior of phenobarbital sodium (PBS), paracetamol (PCM) and their binary mixtures was investigated using cyclic voltammetry (CV) and square wave voltammetry (SWV) at a bare gold electrode in a 0.05 M bicarbonate solution. A calibration curve of PBS obtained by SWV had two linear ranges, from 1.0 to 3.0 mu M and from 5.0 to 35.0 mu M with a limit of quantification (LOQ) of 0.62 mu M and a limit of detection (LOD) of 0.19 mu M, while a calibration curve of PCM was determined within the range from 10.0 to 50.0 mu M with a LOQ of 8.53 mu M and a LOD of 2.56 mu M. Both drugs underwent oxidation by irreversible, diffusion controlled process. The SW voltammograms of the drug mixtures produced complex, overlapping profiles and a chemometric method was applied for their decomposition. Two different artificial neural network (ANN) architectures, namely back-propagation neural network (BPNN) and general regression neural network (GRNN) were employed for the simultaneous prediction of the concentrations of the drugs in a synthetic sample. The BPNN model had higher accuracy (mean absolute percentage error values were in the range of 3.6-8.4%) and thus it can be used for the simultaneous determination of PBS and PCM.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode",
pages = "5951-5935",
number = "7",
volume = "11",
doi = "10.20964/2016.07.48"
}

Avramov-Ivić, M., Antanasijević, J., Trišović, N., Antanasijević, D., Lović, J., Mijin, D.,& Petrović, S.. (2016). A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 11(7), 5935-5951.
https://doi.org/10.20964/2016.07.48

Avramov-Ivić M, Antanasijević J, Trišović N, Antanasijević D, Lović J, Mijin D, Petrović S. A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode. in International Journal of Electrochemical Science. 2016;11(7):5935-5951.
doi:10.20964/2016.07.48 .

Avramov-Ivić, Milka, Antanasijević, Jelena, Trišović, Nemanja, Antanasijević, Davor, Lović, Jelena, Mijin, Dušan, Petrović, Slobodan, "A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode" in International Journal of Electrochemical Science, 11, no. 7 (2016):5935-5951,
https://doi.org/10.20964/2016.07.48 . .

TY  - CONF
AU  - Mijailović, Daniel
AU  - Stević, Miša
AU  - Stević, Zoran
AU  - Bondarenko, Oleksandr
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3166
AB  - The paper gives a brief overview of computer controlled thermogravimetric analysis system. The system consists of a personal computer, software, data acquisition card and interface for the provision of the necessary conditions for the analysis and adaptation of input and output signals. The entire control system, as well as the acquisition, recording and processing of measured data is solved by software. Application is based on programming package LabView.
PB  - 2016 International Conference on Electronics and Information Technology, EIT 2016
C3  - 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce
T1  - Computer Controlled System for Thermogravimetric Analysis
DO  - 10.1109/ICEAIT.2016.7500982
ER  - 

@conference{
author = "Mijailović, Daniel and Stević, Miša and Stević, Zoran and Bondarenko, Oleksandr",
year = "2016",
abstract = "The paper gives a brief overview of computer controlled thermogravimetric analysis system. The system consists of a personal computer, software, data acquisition card and interface for the provision of the necessary conditions for the analysis and adaptation of input and output signals. The entire control system, as well as the acquisition, recording and processing of measured data is solved by software. Application is based on programming package LabView.",
publisher = "2016 International Conference on Electronics and Information Technology, EIT 2016",
journal = "2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce",
title = "Computer Controlled System for Thermogravimetric Analysis",
doi = "10.1109/ICEAIT.2016.7500982"
}

Mijailović, D., Stević, M., Stević, Z.,& Bondarenko, O.. (2016). Computer Controlled System for Thermogravimetric Analysis. in 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce
2016 International Conference on Electronics and Information Technology, EIT 2016..
https://doi.org/10.1109/ICEAIT.2016.7500982

Mijailović D, Stević M, Stević Z, Bondarenko O. Computer Controlled System for Thermogravimetric Analysis. in 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce. 2016;.
doi:10.1109/ICEAIT.2016.7500982 .

Mijailović, Daniel, Stević, Miša, Stević, Zoran, Bondarenko, Oleksandr, "Computer Controlled System for Thermogravimetric Analysis" in 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce (2016),
https://doi.org/10.1109/ICEAIT.2016.7500982 . .

TY  - CONF
AU  - Stević, Zoran
AU  - Rajčić-Vujasinović, Mirjana M.
AU  - Mijailović, Daniel
AU  - Bondarenko, Oleksandr
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3165
AB  - The hardware and software system, based on LabVIEW package, for electrical investigations of supercapacitors was developed. The system provides standard testing (cyclic voltammetry, constant current charge and discharge, electrochemical impedance spectroscopy, etc.) of supercapacitors in the temperature range of 30 to 100 degrees C and under pressure up to 3 bars. The effectiveness of the system was verified.
PB  - 2016 International Conference on Electronics and Information Technology, EIT 2016
C3  - 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce
T1  - System for Characterization of Supercapacitors
DO  - 10.1109/ICEAIT.2016.7500981
ER  - 

@conference{
author = "Stević, Zoran and Rajčić-Vujasinović, Mirjana M. and Mijailović, Daniel and Bondarenko, Oleksandr",
year = "2016",
abstract = "The hardware and software system, based on LabVIEW package, for electrical investigations of supercapacitors was developed. The system provides standard testing (cyclic voltammetry, constant current charge and discharge, electrochemical impedance spectroscopy, etc.) of supercapacitors in the temperature range of 30 to 100 degrees C and under pressure up to 3 bars. The effectiveness of the system was verified.",
publisher = "2016 International Conference on Electronics and Information Technology, EIT 2016",
journal = "2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce",
title = "System for Characterization of Supercapacitors",
doi = "10.1109/ICEAIT.2016.7500981"
}

Stević, Z., Rajčić-Vujasinović, M. M., Mijailović, D.,& Bondarenko, O.. (2016). System for Characterization of Supercapacitors. in 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce
2016 International Conference on Electronics and Information Technology, EIT 2016..
https://doi.org/10.1109/ICEAIT.2016.7500981

Stević Z, Rajčić-Vujasinović MM, Mijailović D, Bondarenko O. System for Characterization of Supercapacitors. in 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce. 2016;.
doi:10.1109/ICEAIT.2016.7500981 .

Stević, Zoran, Rajčić-Vujasinović, Mirjana M., Mijailović, Daniel, Bondarenko, Oleksandr, "System for Characterization of Supercapacitors" in 2016 International Conference on Electronics and Information Technology, EIT 2016 - Conference Proce (2016),
https://doi.org/10.1109/ICEAIT.2016.7500981 . .

TY  - JOUR
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Stević, Zoran
AU  - Volkov-Husović, Tatjana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3280
AB  - Coating materials are widely used in refractory lining to prevent different deleterious effects such are reactions on the mold-metal contact surface, abrasion from liquid metal or alloy, gasses, slags, and other materials in contact with the coating. In this paper, behavior of cordierite based coating exposed to the cavitation erosion was investigated. Cordierite samples sintered at 1200 and 1400 degrees C were used for the tests. Mass loss, level of surface degradation obtained using image analysis and thermal imaging analysis were applied for the cavitation erosion evaluation. Results showed that the cordierite samples can be successfully used in conditions where the cavitation resistance is required.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Non destructive monitoring of cavitation erosion of cordierite based coatings
EP  - 91
SP  - 84
VL  - 97
DO  - 10.1016/j.compositesb.2016.04.073
ER  - 

@article{
author = "Pavlović, Marko and Dojčinović, Marina and Martinović, Sanja and Vlahović, Milica and Stević, Zoran and Volkov-Husović, Tatjana",
year = "2016",
abstract = "Coating materials are widely used in refractory lining to prevent different deleterious effects such are reactions on the mold-metal contact surface, abrasion from liquid metal or alloy, gasses, slags, and other materials in contact with the coating. In this paper, behavior of cordierite based coating exposed to the cavitation erosion was investigated. Cordierite samples sintered at 1200 and 1400 degrees C were used for the tests. Mass loss, level of surface degradation obtained using image analysis and thermal imaging analysis were applied for the cavitation erosion evaluation. Results showed that the cordierite samples can be successfully used in conditions where the cavitation resistance is required.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Non destructive monitoring of cavitation erosion of cordierite based coatings",
pages = "91-84",
volume = "97",
doi = "10.1016/j.compositesb.2016.04.073"
}

Pavlović, M., Dojčinović, M., Martinović, S., Vlahović, M., Stević, Z.,& Volkov-Husović, T.. (2016). Non destructive monitoring of cavitation erosion of cordierite based coatings. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 97, 84-91.
https://doi.org/10.1016/j.compositesb.2016.04.073

Pavlović M, Dojčinović M, Martinović S, Vlahović M, Stević Z, Volkov-Husović T. Non destructive monitoring of cavitation erosion of cordierite based coatings. in Composites Part B-Engineering. 2016;97:84-91.
doi:10.1016/j.compositesb.2016.04.073 .

Pavlović, Marko, Dojčinović, Marina, Martinović, Sanja, Vlahović, Milica, Stević, Zoran, Volkov-Husović, Tatjana, "Non destructive monitoring of cavitation erosion of cordierite based coatings" in Composites Part B-Engineering, 97 (2016):84-91,
https://doi.org/10.1016/j.compositesb.2016.04.073 . .