TY  - JOUR
AU  - Milovanović, Biljana
AU  - Marinović, Sanja
AU  - Vuković, Zorica
AU  - Milutinović-Nikolić, Aleksandra
AU  - Petrović, Rada
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5127
AB  - In this paper, the influence of cobalt loading in pillared clay-supported cobalt materials on their electrocatalytic performance toward glucose oxidation was investigated. A series of aluminum-pillared montmorillonite clay (AP) materials with different cobalt loadings (x%CoAP, x = 1, 3, 5, and 10 wt%) was synthesized using the incipient wetness impregnation method. The X-ray powder diffraction (XRPD), inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry (FE-SEM/EDX), high resolution transmission electron microscopy (HR-TEM) coupled with EDX, X-ray photoelectron spectroscopy (XPS), and low temperature N2 physisorption, were employed for characterization of the materials. The incorporation of cobalt in porous structure of pillared montmorillonite was confirmed. The synthesized materials (x%CoAP) were used for modification of carbon paste (CP) electrode and tested in reaction of glucose electrooxidation. The electrochemical measurements were conducted using cyclic voltammetry and chronoamperometry in a 1 M NaOH solution, with or without glucose. The results showed that the increase of cobalt loading improved the electrode performance toward glucose. The highest current response and sensitivity were obtained for the CP-5%CoAP electrode. A lower electrode performance of CP-10%CoAP was correlated with the presence of higher quantities of Co3O4 (confirmed by XRPD and XPS) in the electrode material. The mechanism and kinetics of glucose electrooxidation was studied in more details for the best performing electrode (CP-5%CoAP). It was found that the process was diffusion-controlled and the diffusion coefficient was determined. The charge transfer coefficient and catalytic rate constant were calculated. The electrode exhibited satisfactory repeatability, reproducibility, stability, and selectivity. The obtained results showed that appropriate amount of cobalt loading in pillared clay led to the obtainment of non-enzymatic electrode materials suitable for sustainable and green glucose sensors.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt
SP  - 116332
VL  - 915
DO  - 10.1016/j.jelechem.2022.116332
ER  - 

@article{
author = "Milovanović, Biljana and Marinović, Sanja and Vuković, Zorica and Milutinović-Nikolić, Aleksandra and Petrović, Rada and Banković, Predrag and Mudrinić, Tihana",
year = "2022",
abstract = "In this paper, the influence of cobalt loading in pillared clay-supported cobalt materials on their electrocatalytic performance toward glucose oxidation was investigated. A series of aluminum-pillared montmorillonite clay (AP) materials with different cobalt loadings (x%CoAP, x = 1, 3, 5, and 10 wt%) was synthesized using the incipient wetness impregnation method. The X-ray powder diffraction (XRPD), inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry (FE-SEM/EDX), high resolution transmission electron microscopy (HR-TEM) coupled with EDX, X-ray photoelectron spectroscopy (XPS), and low temperature N2 physisorption, were employed for characterization of the materials. The incorporation of cobalt in porous structure of pillared montmorillonite was confirmed. The synthesized materials (x%CoAP) were used for modification of carbon paste (CP) electrode and tested in reaction of glucose electrooxidation. The electrochemical measurements were conducted using cyclic voltammetry and chronoamperometry in a 1 M NaOH solution, with or without glucose. The results showed that the increase of cobalt loading improved the electrode performance toward glucose. The highest current response and sensitivity were obtained for the CP-5%CoAP electrode. A lower electrode performance of CP-10%CoAP was correlated with the presence of higher quantities of Co3O4 (confirmed by XRPD and XPS) in the electrode material. The mechanism and kinetics of glucose electrooxidation was studied in more details for the best performing electrode (CP-5%CoAP). It was found that the process was diffusion-controlled and the diffusion coefficient was determined. The charge transfer coefficient and catalytic rate constant were calculated. The electrode exhibited satisfactory repeatability, reproducibility, stability, and selectivity. The obtained results showed that appropriate amount of cobalt loading in pillared clay led to the obtainment of non-enzymatic electrode materials suitable for sustainable and green glucose sensors.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt",
pages = "116332",
volume = "915",
doi = "10.1016/j.jelechem.2022.116332"
}

Milovanović, B., Marinović, S., Vuković, Z., Milutinović-Nikolić, A., Petrović, R., Banković, P.,& Mudrinić, T.. (2022). The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 915, 116332.
https://doi.org/10.1016/j.jelechem.2022.116332

Milovanović B, Marinović S, Vuković Z, Milutinović-Nikolić A, Petrović R, Banković P, Mudrinić T. The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt. in Journal of Electroanalytical Chemistry. 2022;915:116332.
doi:10.1016/j.jelechem.2022.116332 .

Milovanović, Biljana, Marinović, Sanja, Vuković, Zorica, Milutinović-Nikolić, Aleksandra, Petrović, Rada, Banković, Predrag, Mudrinić, Tihana, "The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt" in Journal of Electroanalytical Chemistry, 915 (2022):116332,
https://doi.org/10.1016/j.jelechem.2022.116332 . .

TY  - JOUR
AU  - Marković, Marija
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Mojović, Zorica
AU  - Orlić, Jovana
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5883
AB  - Aluminum pillared clay was synthesized and impregnated with Co2+ (CoAP), using incipient wetness impregnation method. The obtained CoAP was characterized by chemical analysis, XRPD, SEM with EDS, XPS and low temperature N2 physisorption. By these methods the incorporation of Co2+ was confirmed in both micro and mesoporous region. The synthesized material was investigated as a catalyst in catalytic oxidation of organic water pollutants – dyes – in the presence of Oxone® (peroxymonosulfate). Oxone® is a precursor of sulfate radicals. Tartrazine was chosen as a model dye pollutant. The influence of the mass of the catalyst, temperature and initial pH was investigated. Temperature increase was beneficial for dye degradation rate. The reaction rate was the highest for initial pH values around those corresponding to neutral conditions, somewhat slower for pH < 4 values, while for pH > 10 decolorization was significantly less expressed. Along with decolorization of tartrazine solution the formation and degradation of tartrazine catalytic oxidation products were monitored using UV–Vis spectroscopy. CoAP was found to be efficient catalyst in Oxone® induced catalytic degradation of both tartrazine and detected products of its degradation.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Co(II) impregnated Al(III)-pillared montmorillonite–Synthesis, characterization and catalytic properties in Oxone® activation for dye degradation
SP  - 105276
VL  - 182
DO  - 10.1016/j.clay.2019.105276
ER  - 

@article{
author = "Marković, Marija and Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Mojović, Zorica and Orlić, Jovana and Milutinović Nikolić, Aleksandra and Banković, Predrag",
year = "2019",
abstract = "Aluminum pillared clay was synthesized and impregnated with Co2+ (CoAP), using incipient wetness impregnation method. The obtained CoAP was characterized by chemical analysis, XRPD, SEM with EDS, XPS and low temperature N2 physisorption. By these methods the incorporation of Co2+ was confirmed in both micro and mesoporous region. The synthesized material was investigated as a catalyst in catalytic oxidation of organic water pollutants – dyes – in the presence of Oxone® (peroxymonosulfate). Oxone® is a precursor of sulfate radicals. Tartrazine was chosen as a model dye pollutant. The influence of the mass of the catalyst, temperature and initial pH was investigated. Temperature increase was beneficial for dye degradation rate. The reaction rate was the highest for initial pH values around those corresponding to neutral conditions, somewhat slower for pH < 4 values, while for pH > 10 decolorization was significantly less expressed. Along with decolorization of tartrazine solution the formation and degradation of tartrazine catalytic oxidation products were monitored using UV–Vis spectroscopy. CoAP was found to be efficient catalyst in Oxone® induced catalytic degradation of both tartrazine and detected products of its degradation.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Co(II) impregnated Al(III)-pillared montmorillonite–Synthesis, characterization and catalytic properties in Oxone® activation for dye degradation",
pages = "105276",
volume = "182",
doi = "10.1016/j.clay.2019.105276"
}

Marković, M., Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Mojović, Z., Orlić, J., Milutinović Nikolić, A.,& Banković, P.. (2019). Co(II) impregnated Al(III)-pillared montmorillonite–Synthesis, characterization and catalytic properties in Oxone® activation for dye degradation. in Applied Clay Science
Elsevier., 182, 105276.
https://doi.org/10.1016/j.clay.2019.105276

Marković M, Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Mojović Z, Orlić J, Milutinović Nikolić A, Banković P. Co(II) impregnated Al(III)-pillared montmorillonite–Synthesis, characterization and catalytic properties in Oxone® activation for dye degradation. in Applied Clay Science. 2019;182:105276.
doi:10.1016/j.clay.2019.105276 .

Marković, Marija, Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Mojović, Zorica, Orlić, Jovana, Milutinović Nikolić, Aleksandra, Banković, Predrag, "Co(II) impregnated Al(III)-pillared montmorillonite–Synthesis, characterization and catalytic properties in Oxone® activation for dye degradation" in Applied Clay Science, 182 (2019):105276,
https://doi.org/10.1016/j.clay.2019.105276 . .

TY  - JOUR
AU  - Marković, Marija
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Mojović, Zorica
AU  - Ajduković, Marija
AU  - Milutinović-Nikolić, Aleksandra
AU  - Banković, Predrag
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3913
AB  - Aluminum pillared montmorillonite impregnated with cobalt (CoAP) was synthe-sized and characterized using chemical analysis, XRD and N-2-physisorption. CoAP was tested as a catalyst in the peroxymonosulfate (Oxone (R)) induced catalytic degradation of tartrazine. The influence of Oxone (R)/catalyst ratio and temperature on CoAP catalytic performance was investigated. The UV-Vis spectra obtained after predetermined periods of time of reaction were analyzed in order for tartrazine solution composition to be monitored. The reaction was more efficient at 50 degrees C than at 30 degrees C and the presence of new peaks for the reaction at 50 degrees C was observed. The peaks were deconvoluted and further analyzed. The intensity of two characteristic peaks gradually decreased during the investigated reaction following the first order kinetics. Newly formed peaks indicated the formation of degradation products. The initial increase of the intensity of some of them was followed by certain decrease as the reaction proceeded. CoAP was found to be efficient catalyst in Oxone (R) induced catalytic decolorization of tartrazine. The degradation of different products formed in tartrazine oxidation was evidenced.
PB  - Springer, Dordrecht
T2  - Reaction Kinetics Mechanisms and Catalysis
T1  - Cobalt impregnated pillared montmorillonite in the peroxymonosulfate induced catalytic oxidation of tartrazine
EP  - 841
IS  - 2
SP  - 827
VL  - 125
DO  - 10.1007/s11144-018-1466-1
ER  - 

@article{
author = "Marković, Marija and Marinović, Sanja and Mudrinić, Tihana and Mojović, Zorica and Ajduković, Marija and Milutinović-Nikolić, Aleksandra and Banković, Predrag",
year = "2018",
abstract = "Aluminum pillared montmorillonite impregnated with cobalt (CoAP) was synthe-sized and characterized using chemical analysis, XRD and N-2-physisorption. CoAP was tested as a catalyst in the peroxymonosulfate (Oxone (R)) induced catalytic degradation of tartrazine. The influence of Oxone (R)/catalyst ratio and temperature on CoAP catalytic performance was investigated. The UV-Vis spectra obtained after predetermined periods of time of reaction were analyzed in order for tartrazine solution composition to be monitored. The reaction was more efficient at 50 degrees C than at 30 degrees C and the presence of new peaks for the reaction at 50 degrees C was observed. The peaks were deconvoluted and further analyzed. The intensity of two characteristic peaks gradually decreased during the investigated reaction following the first order kinetics. Newly formed peaks indicated the formation of degradation products. The initial increase of the intensity of some of them was followed by certain decrease as the reaction proceeded. CoAP was found to be efficient catalyst in Oxone (R) induced catalytic decolorization of tartrazine. The degradation of different products formed in tartrazine oxidation was evidenced.",
publisher = "Springer, Dordrecht",
journal = "Reaction Kinetics Mechanisms and Catalysis",
title = "Cobalt impregnated pillared montmorillonite in the peroxymonosulfate induced catalytic oxidation of tartrazine",
pages = "841-827",
number = "2",
volume = "125",
doi = "10.1007/s11144-018-1466-1"
}

Marković, M., Marinović, S., Mudrinić, T., Mojović, Z., Ajduković, M., Milutinović-Nikolić, A.,& Banković, P.. (2018). Cobalt impregnated pillared montmorillonite in the peroxymonosulfate induced catalytic oxidation of tartrazine. in Reaction Kinetics Mechanisms and Catalysis
Springer, Dordrecht., 125(2), 827-841.
https://doi.org/10.1007/s11144-018-1466-1

Marković M, Marinović S, Mudrinić T, Mojović Z, Ajduković M, Milutinović-Nikolić A, Banković P. Cobalt impregnated pillared montmorillonite in the peroxymonosulfate induced catalytic oxidation of tartrazine. in Reaction Kinetics Mechanisms and Catalysis. 2018;125(2):827-841.
doi:10.1007/s11144-018-1466-1 .

Marković, Marija, Marinović, Sanja, Mudrinić, Tihana, Mojović, Zorica, Ajduković, Marija, Milutinović-Nikolić, Aleksandra, Banković, Predrag, "Cobalt impregnated pillared montmorillonite in the peroxymonosulfate induced catalytic oxidation of tartrazine" in Reaction Kinetics Mechanisms and Catalysis, 125, no. 2 (2018):827-841,
https://doi.org/10.1007/s11144-018-1466-1 . .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Nastasović, Aleksandra
AU  - Žunić, Marija
AU  - Vuković, Zorica
AU  - Antonovic, Dusan G
AU  - Jovanović, Dušan M.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5796
AB  - Macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite was prepared by radical suspension copolymerization. Nanocomposite was functionalized with diethylenetriamine (DETA), by ring-opening reaction of the pendant epoxy groups. Functionalization was performed in order to enable phenol derivatives sorption. This new, not sufficiently investigated material, with developed porous structure was denoted CP-S-A-DETA. In this study, the influence of temperature on 4-nitrophenol (4NP) sorption on CP-S-A-DETA was investigated. The chemisorption was estimated as dominant process since activation energy of sorption of 4NP of 54.8 kJ mol(-1) was obtained. After determining the optimal sorption conditions for 4NP, the sorption of 2-nitrophenol (2NP) and 2-chloro-4-nitrophenol (2Cl4NP) on CP-S-A-DETA was investigated with respect to pH, initial concentration and contact time. The 2NP sorption was seldom tested, while according to our knowledge, the 2Cl4NP sorption was not investigated. The isotherm data were best fitted with Langmuir model, while the sorption dynamics obeyed the pseudo-second-order kinetic model for all derivatives.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite
EP  - 1261
IS  - 10
SP  - 1249
VL  - 79
DO  - 10.2298/JSC140206043M
ER  - 

@article{
author = "Marinović, Sanja and Milutinović Nikolić, Aleksandra and Nastasović, Aleksandra and Žunić, Marija and Vuković, Zorica and Antonovic, Dusan G and Jovanović, Dušan M.",
year = "2014",
abstract = "Macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite was prepared by radical suspension copolymerization. Nanocomposite was functionalized with diethylenetriamine (DETA), by ring-opening reaction of the pendant epoxy groups. Functionalization was performed in order to enable phenol derivatives sorption. This new, not sufficiently investigated material, with developed porous structure was denoted CP-S-A-DETA. In this study, the influence of temperature on 4-nitrophenol (4NP) sorption on CP-S-A-DETA was investigated. The chemisorption was estimated as dominant process since activation energy of sorption of 4NP of 54.8 kJ mol(-1) was obtained. After determining the optimal sorption conditions for 4NP, the sorption of 2-nitrophenol (2NP) and 2-chloro-4-nitrophenol (2Cl4NP) on CP-S-A-DETA was investigated with respect to pH, initial concentration and contact time. The 2NP sorption was seldom tested, while according to our knowledge, the 2Cl4NP sorption was not investigated. The isotherm data were best fitted with Langmuir model, while the sorption dynamics obeyed the pseudo-second-order kinetic model for all derivatives.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite",
pages = "1261-1249",
number = "10",
volume = "79",
doi = "10.2298/JSC140206043M"
}

Marinović, S., Milutinović Nikolić, A., Nastasović, A., Žunić, M., Vuković, Z., Antonovic, D. G.,& Jovanović, D. M.. (2014). Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 79(10), 1249-1261.
https://doi.org/10.2298/JSC140206043M

Marinović S, Milutinović Nikolić A, Nastasović A, Žunić M, Vuković Z, Antonovic DG, Jovanović DM. Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite. in Journal of the Serbian Chemical Society. 2014;79(10):1249-1261.
doi:10.2298/JSC140206043M .

Marinović, Sanja, Milutinović Nikolić, Aleksandra, Nastasović, Aleksandra, Žunić, Marija, Vuković, Zorica, Antonovic, Dusan G, Jovanović, Dušan M., "Sorption of different phenol derivatives on a functionalized macroporous nanocomposite of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) and acid modified bentonite" in Journal of the Serbian Chemical Society, 79, no. 10 (2014):1249-1261,
https://doi.org/10.2298/JSC140206043M . .

TY  - JOUR
AU  - Marinović, Vedrana M.
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Jovanovic, J.
AU  - Nesic, G.
AU  - Stojanović, Milovan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5723
AB  - The study of the electrochemical reduction on acetonitrile modified platinum electrode and determination of trinitrotoluene (TNT) in neutral solution by simple galvanostatic technique is presented here. The obtained potential-time responses on the applied constant cathodic current pulses showed two potential transitions before achieving the steady-states, referring to the multi-step reduction process of nitro groups in TNT molecule. The calibration curves of the dependence of the square root of the first transition time (tau(0.5)) on the TNT concentration were linear in the ranges 4.4 - 303.8 mu M and 0.09 - 4.40 mu M for applied constant current of 0.1 mA. The detection limit was 0.09 mu M. The method was tested in the river water. The results indicated the sensitivity of the galvanostatic method for TNT determination in the environmental samples. From the first transition on the E-t curves the characteristics important for the understanding the mechanism of the reduction process were obtained. It was found that four electrons are involved in the reduction process of the first nitro group, indicating that the reduction product in a neutral electrolyte is hydroxylamine.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution
EP  - 1998
IS  - 2
SP  - 1986
VL  - 8
UR  - https://hdl.handle.net/21.15107/rcub_dais_364
ER  - 

@article{
author = "Marinović, Vedrana M. and Marinović, Sanja and Jovanović, M. and Jovanovic, J. and Nesic, G. and Stojanović, Milovan",
year = "2013",
abstract = "The study of the electrochemical reduction on acetonitrile modified platinum electrode and determination of trinitrotoluene (TNT) in neutral solution by simple galvanostatic technique is presented here. The obtained potential-time responses on the applied constant cathodic current pulses showed two potential transitions before achieving the steady-states, referring to the multi-step reduction process of nitro groups in TNT molecule. The calibration curves of the dependence of the square root of the first transition time (tau(0.5)) on the TNT concentration were linear in the ranges 4.4 - 303.8 mu M and 0.09 - 4.40 mu M for applied constant current of 0.1 mA. The detection limit was 0.09 mu M. The method was tested in the river water. The results indicated the sensitivity of the galvanostatic method for TNT determination in the environmental samples. From the first transition on the E-t curves the characteristics important for the understanding the mechanism of the reduction process were obtained. It was found that four electrons are involved in the reduction process of the first nitro group, indicating that the reduction product in a neutral electrolyte is hydroxylamine.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution",
pages = "1998-1986",
number = "2",
volume = "8",
url = "https://hdl.handle.net/21.15107/rcub_dais_364"
}

Marinović, V. M., Marinović, S., Jovanović, M., Jovanovic, J., Nesic, G.,& Stojanović, M.. (2013). The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution. in International Journal of Electrochemical Science
Esg, Belgrade., 8(2), 1986-1998.
https://hdl.handle.net/21.15107/rcub_dais_364

Marinović VM, Marinović S, Jovanović M, Jovanovic J, Nesic G, Stojanović M. The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution. in International Journal of Electrochemical Science. 2013;8(2):1986-1998.
https://hdl.handle.net/21.15107/rcub_dais_364 .

Marinović, Vedrana M., Marinović, Sanja, Jovanović, M., Jovanovic, J., Nesic, G., Stojanović, Milovan, "The Galvanostatic Reduction on Modified Platinum Electrode and Determination of Trinitrotoluene in Neutral Solution" in International Journal of Electrochemical Science, 8, no. 2 (2013):1986-1998,
https://hdl.handle.net/21.15107/rcub_dais_364 .

TY  - JOUR
AU  - Marinović, Vedrana M.
AU  - Marinović, Sanja
AU  - Jovanović, M.
AU  - Jovanovic, J.
AU  - Štrbac, Svetlana
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5619
AB  - The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4-638.4 mu M and 0.11-4.40 mu M for two different scan rates, 200 my s(-1) and 20 mV s(-1), respectively. The detection limit was 0.11 mu M. Acetonitrile chemisorption on Pt surface took place and caused thus modified platinum electrode to exhibit an electrochemically stabile behaviour. Hence, a very high reproducibility over a prolonged time and voltammetric cycling was provided for using a Pt wire that is easy to handle as a suitable material for TNT sensing. Additionally, it was confirmed by testing the acetonitrile modified Pt wire for TNT detection in river water.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile
EP  - 7
IS  - 1
SP  - 1
VL  - 648
DO  - 10.1016/j.jelechem.2010.07.008
ER  - 

@article{
author = "Marinović, Vedrana M. and Marinović, Sanja and Jovanović, M. and Jovanovic, J. and Štrbac, Svetlana",
year = "2010",
abstract = "The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. The obtained cyclic voltammograms showed three distinct reduction peaks in the potential range of -0.45 to -0.8 V (vs. an Ag/AgCl (3M KCl) reference electrode), which refer to the multi-step process of TNT reduction. The calibration curves of the dependence of the first peak current on the TNT concentration were linear in the ranges 4.4-638.4 mu M and 0.11-4.40 mu M for two different scan rates, 200 my s(-1) and 20 mV s(-1), respectively. The detection limit was 0.11 mu M. Acetonitrile chemisorption on Pt surface took place and caused thus modified platinum electrode to exhibit an electrochemically stabile behaviour. Hence, a very high reproducibility over a prolonged time and voltammetric cycling was provided for using a Pt wire that is easy to handle as a suitable material for TNT sensing. Additionally, it was confirmed by testing the acetonitrile modified Pt wire for TNT detection in river water.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile",
pages = "7-1",
number = "1",
volume = "648",
doi = "10.1016/j.jelechem.2010.07.008"
}

Marinović, V. M., Marinović, S., Jovanović, M., Jovanovic, J.,& Štrbac, S.. (2010). The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile. in Journal of Electroanalytical Chemistry
Elsevier., 648(1), 1-7.
https://doi.org/10.1016/j.jelechem.2010.07.008

Marinović VM, Marinović S, Jovanović M, Jovanovic J, Štrbac S. The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile. in Journal of Electroanalytical Chemistry. 2010;648(1):1-7.
doi:10.1016/j.jelechem.2010.07.008 .

Marinović, Vedrana M., Marinović, Sanja, Jovanović, M., Jovanovic, J., Štrbac, Svetlana, "The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile" in Journal of Electroanalytical Chemistry, 648, no. 1 (2010):1-7,
https://doi.org/10.1016/j.jelechem.2010.07.008 . .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Popović, Ivanka
AU  - Dunjić, Branko
AU  - Tasić, S.
AU  - Božić, B.
AU  - Jovanović, Dušan M.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1583
AB  - The aim of this study was to investigate the influence of different components of interpenetrating polymer networks (IPNs) on their behavior in dual curing automotive applications. Dual curing is one of possible ways to obtain fast curing, scratch resistant coatings for use in OEM and car refinish applications. Dual curing systems, upon hardening, represent interpenetrating networks (IPNs) [1]. IPN's were obtained using novel acrylate-terminated hyperbranched polyester with high functionality and compared to classical 2-pack polyurethane clear coat. In our previous manuscript [1] we investigated the influence of the acrylated hyperbranched polyester (HBP(A)) content in dual curing systems. In this article we studied the influence of the reactive diluent on dual curing compositions. To this end, we have chosen IPN with 50/50 weigth ratio of polyurethane (PU) and polyacrylic (PA) component. In order to determine more clearly the role of the HBP(A) in one IPN HBP(A) was changed with hexane diol diacrylate (HDDA), keeping the same ratio with EHA. The IPNs were characterized by dynamic-mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The mechanical properties of the IPNs were also investigated. The IPN with HDDA as reactive diluent, had the best performance. IPN with H BP(A) had the highest glass transition temperature Tg and the highest crosslink density, but it did not have the highest hardness.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats
EP  - 298
IS  - 4
SP  - 293
VL  - 68
DO  - 10.1016/j.porgcoat.2010.03.010
ER  - 

@article{
author = "Marinović, Sanja and Popović, Ivanka and Dunjić, Branko and Tasić, S. and Božić, B. and Jovanović, Dušan M.",
year = "2010",
abstract = "The aim of this study was to investigate the influence of different components of interpenetrating polymer networks (IPNs) on their behavior in dual curing automotive applications. Dual curing is one of possible ways to obtain fast curing, scratch resistant coatings for use in OEM and car refinish applications. Dual curing systems, upon hardening, represent interpenetrating networks (IPNs) [1]. IPN's were obtained using novel acrylate-terminated hyperbranched polyester with high functionality and compared to classical 2-pack polyurethane clear coat. In our previous manuscript [1] we investigated the influence of the acrylated hyperbranched polyester (HBP(A)) content in dual curing systems. In this article we studied the influence of the reactive diluent on dual curing compositions. To this end, we have chosen IPN with 50/50 weigth ratio of polyurethane (PU) and polyacrylic (PA) component. In order to determine more clearly the role of the HBP(A) in one IPN HBP(A) was changed with hexane diol diacrylate (HDDA), keeping the same ratio with EHA. The IPNs were characterized by dynamic-mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The mechanical properties of the IPNs were also investigated. The IPN with HDDA as reactive diluent, had the best performance. IPN with H BP(A) had the highest glass transition temperature Tg and the highest crosslink density, but it did not have the highest hardness.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats",
pages = "298-293",
number = "4",
volume = "68",
doi = "10.1016/j.porgcoat.2010.03.010"
}

Marinović, S., Popović, I., Dunjić, B., Tasić, S., Božić, B.,& Jovanović, D. M.. (2010). The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 68(4), 293-298.
https://doi.org/10.1016/j.porgcoat.2010.03.010

Marinović S, Popović I, Dunjić B, Tasić S, Božić B, Jovanović DM. The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats. in Progress in Organic Coatings. 2010;68(4):293-298.
doi:10.1016/j.porgcoat.2010.03.010 .

Marinović, Sanja, Popović, Ivanka, Dunjić, Branko, Tasić, S., Božić, B., Jovanović, Dušan M., "The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats" in Progress in Organic Coatings, 68, no. 4 (2010):293-298,
https://doi.org/10.1016/j.porgcoat.2010.03.010 . .

TY  - JOUR
AU  - Simić, Sanja
AU  - Dunjić, Branko
AU  - Tasić, S.
AU  - Božić, Bojan
AU  - Jovanović, Dušan M.
AU  - Popović, Ivanka
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1233
AB  - The aim of this study was to investigate the possibility of using acrylated hyperbranched polyesters (HBP) as UV curable component in dual curing automotive applications. Dual curing is one of possible ways to obtain fast curing, scratch resistant coatings for use in OEM and car refinish applications. Dual curing systems, upon hardening, can give interpenetrating networks (IPNs). All the IPNs were obtained by UV-thermal dual cure process and they consisted of an UV curable acrylic component and a classic 2-pack urethane component. The acrylic component was acrylated hyperbranched polyester (HBP(A)) and 2-ethyl hexyl acrylate (EHA). The classic 2-pack urethane component consisted of a hydroxyl functional acrylate copolymer (HA) and Desniodur (R)) N3390. The weight ratio of HBP(A) and EHA in the IPNs was varied from 100/0 to 25/75, while the urethane component remained the same in all the IPN samples. The IPNs were characterized by dynamic-mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The mechanical properties of the IPNs were also investigated. A single glass transition temperature, T-g, indicated that a homogeneous material with no separation domain was obtained. DMA showed that with increasing HBP(A) in the IPNs, the crosslink density increased, while the flexibility decreased. The data obtained by DMA and DSC showed a decrease of the T-g values with increasing amount of HBP(A). There were slight differences in the thermal stability of the IPNs.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Synthesis and characterization of interpenetrating polymer networks with hyperbranched polymers through thermal-UV dual curing
EP  - 48
IS  - 1
SP  - 43
VL  - 63
DO  - 10.1016/j.porgcoat.2008.04.006
ER  - 

@article{
author = "Simić, Sanja and Dunjić, Branko and Tasić, S. and Božić, Bojan and Jovanović, Dušan M. and Popović, Ivanka",
year = "2008",
abstract = "The aim of this study was to investigate the possibility of using acrylated hyperbranched polyesters (HBP) as UV curable component in dual curing automotive applications. Dual curing is one of possible ways to obtain fast curing, scratch resistant coatings for use in OEM and car refinish applications. Dual curing systems, upon hardening, can give interpenetrating networks (IPNs). All the IPNs were obtained by UV-thermal dual cure process and they consisted of an UV curable acrylic component and a classic 2-pack urethane component. The acrylic component was acrylated hyperbranched polyester (HBP(A)) and 2-ethyl hexyl acrylate (EHA). The classic 2-pack urethane component consisted of a hydroxyl functional acrylate copolymer (HA) and Desniodur (R)) N3390. The weight ratio of HBP(A) and EHA in the IPNs was varied from 100/0 to 25/75, while the urethane component remained the same in all the IPN samples. The IPNs were characterized by dynamic-mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The mechanical properties of the IPNs were also investigated. A single glass transition temperature, T-g, indicated that a homogeneous material with no separation domain was obtained. DMA showed that with increasing HBP(A) in the IPNs, the crosslink density increased, while the flexibility decreased. The data obtained by DMA and DSC showed a decrease of the T-g values with increasing amount of HBP(A). There were slight differences in the thermal stability of the IPNs.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Synthesis and characterization of interpenetrating polymer networks with hyperbranched polymers through thermal-UV dual curing",
pages = "48-43",
number = "1",
volume = "63",
doi = "10.1016/j.porgcoat.2008.04.006"
}

Simić, S., Dunjić, B., Tasić, S., Božić, B., Jovanović, D. M.,& Popović, I.. (2008). Synthesis and characterization of interpenetrating polymer networks with hyperbranched polymers through thermal-UV dual curing. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 63(1), 43-48.
https://doi.org/10.1016/j.porgcoat.2008.04.006

Simić S, Dunjić B, Tasić S, Božić B, Jovanović DM, Popović I. Synthesis and characterization of interpenetrating polymer networks with hyperbranched polymers through thermal-UV dual curing. in Progress in Organic Coatings. 2008;63(1):43-48.
doi:10.1016/j.porgcoat.2008.04.006 .

Simić, Sanja, Dunjić, Branko, Tasić, S., Božić, Bojan, Jovanović, Dušan M., Popović, Ivanka, "Synthesis and characterization of interpenetrating polymer networks with hyperbranched polymers through thermal-UV dual curing" in Progress in Organic Coatings, 63, no. 1 (2008):43-48,
https://doi.org/10.1016/j.porgcoat.2008.04.006 . .