TY  - JOUR
AU  - Obradović, Maja D.
AU  - Lačnjevac, Uroš Č.
AU  - Radmilović, Vuk V.
AU  - Gavrilović-Wohlmuther, Aleksandra
AU  - Kovač, Janez
AU  - Rogan, Jelena R.
AU  - Radmilović, Velimir R.
AU  - Gojković, Snežana Lj.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6587
AB  - Two types of Cu-modified Pd catalysts supported on high area carbon were prepared: Pd nanoparticles modified with a sub-monolayer of underpotentially deposited Cu (Cu@Pd/C) and Pd-Cu alloy nanoparticles (Pd-Cu/C), and examined for the ethanol oxidation reaction (EOR) in alkaline solution. The catalysts were characterized by energy-dispersive X-ray spectroscopy, X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy, as well as cyclic voltammetry. As reference catalysts, Pd/C and Pt/C were used. The electrochemically active surface area of all samples was determined from COads and Cuupd desorption and Pd oxide reduction, and used to assess their intrinsic activity for EOR. Intimate contact of Pd with Cu atoms enhanced its activity, regardless of the type of bimetal catalyst. The atomic Pd:Cu ratio between 2:1 and 4:1 appears to be optimal for high activity. The most active catalyst under the potentiodynamic conditions was Cu@Pd/C with θ(Cu) = 0.21,although Pd-Cu/C was superior during the potentiostatic test. All bimetallic catalysts surpassed Pd/C in mass activity. The EOR activity of Pt/C was higher compared to Pd-based catalysts at low potentials, both in terms of specific and mass activity, but with a significant decline over a 30-min potentiostatic stability test.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium
SP  - 117673
VL  - 944
DO  - 10.1016/j.jelechem.2023.117673
ER  - 

@article{
author = "Obradović, Maja D. and Lačnjevac, Uroš Č. and Radmilović, Vuk V. and Gavrilović-Wohlmuther, Aleksandra and Kovač, Janez and Rogan, Jelena R. and Radmilović, Velimir R. and Gojković, Snežana Lj.",
year = "2023",
abstract = "Two types of Cu-modified Pd catalysts supported on high area carbon were prepared: Pd nanoparticles modified with a sub-monolayer of underpotentially deposited Cu (Cu@Pd/C) and Pd-Cu alloy nanoparticles (Pd-Cu/C), and examined for the ethanol oxidation reaction (EOR) in alkaline solution. The catalysts were characterized by energy-dispersive X-ray spectroscopy, X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy, as well as cyclic voltammetry. As reference catalysts, Pd/C and Pt/C were used. The electrochemically active surface area of all samples was determined from COads and Cuupd desorption and Pd oxide reduction, and used to assess their intrinsic activity for EOR. Intimate contact of Pd with Cu atoms enhanced its activity, regardless of the type of bimetal catalyst. The atomic Pd:Cu ratio between 2:1 and 4:1 appears to be optimal for high activity. The most active catalyst under the potentiodynamic conditions was Cu@Pd/C with θ(Cu) = 0.21,although Pd-Cu/C was superior during the potentiostatic test. All bimetallic catalysts surpassed Pd/C in mass activity. The EOR activity of Pt/C was higher compared to Pd-based catalysts at low potentials, both in terms of specific and mass activity, but with a significant decline over a 30-min potentiostatic stability test.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium",
pages = "117673",
volume = "944",
doi = "10.1016/j.jelechem.2023.117673"
}

Obradović, M. D., Lačnjevac, U. Č., Radmilović, V. V., Gavrilović-Wohlmuther, A., Kovač, J., Rogan, J. R., Radmilović, V. R.,& Gojković, S. Lj.. (2023). Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 944, 117673.
https://doi.org/10.1016/j.jelechem.2023.117673

Obradović MD, Lačnjevac UČ, Radmilović VV, Gavrilović-Wohlmuther A, Kovač J, Rogan JR, Radmilović VR, Gojković SL. Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium. in Journal of Electroanalytical Chemistry. 2023;944:117673.
doi:10.1016/j.jelechem.2023.117673 .

Obradović, Maja D., Lačnjevac, Uroš Č., Radmilović, Vuk V., Gavrilović-Wohlmuther, Aleksandra, Kovač, Janez, Rogan, Jelena R., Radmilović, Velimir R., Gojković, Snežana Lj., "Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium" in Journal of Electroanalytical Chemistry, 944 (2023):117673,
https://doi.org/10.1016/j.jelechem.2023.117673 . .

TY  - CONF
AU  - Radmilović, Vuk V.
AU  - Mijailović, Daniel
AU  - Hou, Y.
AU  - Uskoković, Petar S.
AU  - Brabec, C. J.
AU  - Spiecker, E.
AU  - Radmilović, Velimir R.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5976
PB  - Czechoslovak Microscopy Society
C3  - Book of Abstracts / 16th Multinational Congress on Microscopy MCM2022, 04–09 September 2022, Brno, Czech Republic
T1  - Can the Wet Win the Bet? The case of Energy Harvesting and Storage
EP  - 492
SP  - 491
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5976
ER  - 

@conference{
author = "Radmilović, Vuk V. and Mijailović, Daniel and Hou, Y. and Uskoković, Petar S. and Brabec, C. J. and Spiecker, E. and Radmilović, Velimir R.",
year = "2022",
publisher = "Czechoslovak Microscopy Society",
journal = "Book of Abstracts / 16th Multinational Congress on Microscopy MCM2022, 04–09 September 2022, Brno, Czech Republic",
title = "Can the Wet Win the Bet? The case of Energy Harvesting and Storage",
pages = "492-491",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5976"
}

Radmilović, V. V., Mijailović, D., Hou, Y., Uskoković, P. S., Brabec, C. J., Spiecker, E.,& Radmilović, V. R.. (2022). Can the Wet Win the Bet? The case of Energy Harvesting and Storage. in Book of Abstracts / 16th Multinational Congress on Microscopy MCM2022, 04–09 September 2022, Brno, Czech Republic
Czechoslovak Microscopy Society., 491-492.
https://hdl.handle.net/21.15107/rcub_technorep_5976

Radmilović VV, Mijailović D, Hou Y, Uskoković PS, Brabec CJ, Spiecker E, Radmilović VR. Can the Wet Win the Bet? The case of Energy Harvesting and Storage. in Book of Abstracts / 16th Multinational Congress on Microscopy MCM2022, 04–09 September 2022, Brno, Czech Republic. 2022;:491-492.
https://hdl.handle.net/21.15107/rcub_technorep_5976 .

Radmilović, Vuk V., Mijailović, Daniel, Hou, Y., Uskoković, Petar S., Brabec, C. J., Spiecker, E., Radmilović, Velimir R., "Can the Wet Win the Bet? The case of Energy Harvesting and Storage" in Book of Abstracts / 16th Multinational Congress on Microscopy MCM2022, 04–09 September 2022, Brno, Czech Republic (2022):491-492,
https://hdl.handle.net/21.15107/rcub_technorep_5976 .

TY  - JOUR
AU  - Ilic, N.
AU  - Jovanovic, M. T.
AU  - Radmilović, Velimir R.
AU  - Drobnjak, D.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5020
AB  - The manifestations of dynamic strain ageing in a commercial 2090 Al - Li alloy were investigated in a wide range of temperatures (-40 to 100 degrees C) and strain rates (4.16x10(-5) to 4.16x10(-3) s(-1) ). Serrated yielding, as a macroscopic manifestation of dynamic strain ageing, occurs under all testing conditions. Negative strain-rate sensitivity of the flow stress is also observed. Temperature rise and strain rate reduction cause the increase of the yield strength and the work-hardening rate, as well as the decrease of elongation - the behavior being typical for the range in which C-type serrations appear. These phenomena are related to the dislocation substructure, in which features characteristic for solute atoms blocking of dislocations and Orowan bypassing are observed.
T2  - International Journal of Materials Research
T1  - Manifestations of dynamic strain ageing in 2090 Al-Li alloy
EP  - 1390
IS  - 12
SP  - 1386
VL  - 96
DO  - 10.3139/ijmr-2005-0239
ER  - 

@article{
author = "Ilic, N. and Jovanovic, M. T. and Radmilović, Velimir R. and Drobnjak, D.",
year = "2022",
abstract = "The manifestations of dynamic strain ageing in a commercial 2090 Al - Li alloy were investigated in a wide range of temperatures (-40 to 100 degrees C) and strain rates (4.16x10(-5) to 4.16x10(-3) s(-1) ). Serrated yielding, as a macroscopic manifestation of dynamic strain ageing, occurs under all testing conditions. Negative strain-rate sensitivity of the flow stress is also observed. Temperature rise and strain rate reduction cause the increase of the yield strength and the work-hardening rate, as well as the decrease of elongation - the behavior being typical for the range in which C-type serrations appear. These phenomena are related to the dislocation substructure, in which features characteristic for solute atoms blocking of dislocations and Orowan bypassing are observed.",
journal = "International Journal of Materials Research",
title = "Manifestations of dynamic strain ageing in 2090 Al-Li alloy",
pages = "1390-1386",
number = "12",
volume = "96",
doi = "10.3139/ijmr-2005-0239"
}

Ilic, N., Jovanovic, M. T., Radmilović, V. R.,& Drobnjak, D.. (2022). Manifestations of dynamic strain ageing in 2090 Al-Li alloy. in International Journal of Materials Research, 96(12), 1386-1390.
https://doi.org/10.3139/ijmr-2005-0239

Ilic N, Jovanovic MT, Radmilović VR, Drobnjak D. Manifestations of dynamic strain ageing in 2090 Al-Li alloy. in International Journal of Materials Research. 2022;96(12):1386-1390.
doi:10.3139/ijmr-2005-0239 .

Ilic, N., Jovanovic, M. T., Radmilović, Velimir R., Drobnjak, D., "Manifestations of dynamic strain ageing in 2090 Al-Li alloy" in International Journal of Materials Research, 96, no. 12 (2022):1386-1390,
https://doi.org/10.3139/ijmr-2005-0239 . .

TY  - JOUR
AU  - Mijailović, Daniel
AU  - Radmilović, Vuk
AU  - Lačnjevac, Uroš C.
AU  - Stojanović, Dušica
AU  - Bustillo, Karen C.
AU  - Jović, Vladimir D.
AU  - Radmilović, Velimir R.
AU  - Uskoković, Petar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4768
AB  - We herein report a simple two-step procedure for fabricating tetragonal CoMn2O4 spinel nanocrystals on carbon fibers. The battery-type behavior of these composite fibers arises from the redox activity of CoMn2O4 in an alkaline aqueous solution, which, in combination with the carbon fibers, endows good electrochemical performance and long-term stability. The C"CoMn2O4 electrode exhibited high specific capacity, up to 62 mA h g(-1) at 1 A g(-1) with a capacity retention of around 90% after 4000 cycles. A symmetrical coin-cell device assembled with the composite electrodes delivered a high energy density of 7.3 W h kg(-1) at a power density of 0.1 kW kg(-1), which is around 13 times higher than that of bare carbon electrodes. The coin cell was cycled for 5000 cycles with 96.3% capacitance retention, at a voltage of up to 0.8 V, demonstrating excellent cycling stability.
PB  - Royal Society of Chemistry
T2  - Dalton Transactions
T1  - Tetragonal CoMn2O4 nanocrystals on electrospun carbon fibers as high-performance battery-type supercapacitor electrode materials
EP  - 15678
IS  - 43
SP  - 15669
VL  - 50
DO  - 10.1039/d1dt02829d
ER  - 

@article{
author = "Mijailović, Daniel and Radmilović, Vuk and Lačnjevac, Uroš C. and Stojanović, Dušica and Bustillo, Karen C. and Jović, Vladimir D. and Radmilović, Velimir R. and Uskoković, Petar",
year = "2021",
abstract = "We herein report a simple two-step procedure for fabricating tetragonal CoMn2O4 spinel nanocrystals on carbon fibers. The battery-type behavior of these composite fibers arises from the redox activity of CoMn2O4 in an alkaline aqueous solution, which, in combination with the carbon fibers, endows good electrochemical performance and long-term stability. The C"CoMn2O4 electrode exhibited high specific capacity, up to 62 mA h g(-1) at 1 A g(-1) with a capacity retention of around 90% after 4000 cycles. A symmetrical coin-cell device assembled with the composite electrodes delivered a high energy density of 7.3 W h kg(-1) at a power density of 0.1 kW kg(-1), which is around 13 times higher than that of bare carbon electrodes. The coin cell was cycled for 5000 cycles with 96.3% capacitance retention, at a voltage of up to 0.8 V, demonstrating excellent cycling stability.",
publisher = "Royal Society of Chemistry",
journal = "Dalton Transactions",
title = "Tetragonal CoMn2O4 nanocrystals on electrospun carbon fibers as high-performance battery-type supercapacitor electrode materials",
pages = "15678-15669",
number = "43",
volume = "50",
doi = "10.1039/d1dt02829d"
}

Mijailović, D., Radmilović, V., Lačnjevac, U. C., Stojanović, D., Bustillo, K. C., Jović, V. D., Radmilović, V. R.,& Uskoković, P.. (2021). Tetragonal CoMn2O4 nanocrystals on electrospun carbon fibers as high-performance battery-type supercapacitor electrode materials. in Dalton Transactions
Royal Society of Chemistry., 50(43), 15669-15678.
https://doi.org/10.1039/d1dt02829d

Mijailović D, Radmilović V, Lačnjevac UC, Stojanović D, Bustillo KC, Jović VD, Radmilović VR, Uskoković P. Tetragonal CoMn2O4 nanocrystals on electrospun carbon fibers as high-performance battery-type supercapacitor electrode materials. in Dalton Transactions. 2021;50(43):15669-15678.
doi:10.1039/d1dt02829d .

Mijailović, Daniel, Radmilović, Vuk, Lačnjevac, Uroš C., Stojanović, Dušica, Bustillo, Karen C., Jović, Vladimir D., Radmilović, Velimir R., Uskoković, Petar, "Tetragonal CoMn2O4 nanocrystals on electrospun carbon fibers as high-performance battery-type supercapacitor electrode materials" in Dalton Transactions, 50, no. 43 (2021):15669-15678,
https://doi.org/10.1039/d1dt02829d . .

TY  - JOUR
AU  - Jiang, Lu
AU  - Radmilović, Velimir R.
AU  - Sabisch, Julian E. C.
AU  - Qi, Liang
AU  - Minor, Andrew M.
AU  - Chrzan, Daryl C.
AU  - Asta, Mark
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4951
AB  - Twinning plays an important role in governing the balance between strength and ductility in hexagonal-close-packed (HCP) metals. Here, we report a combined experimental and theoretical study of twin nucleation from a single   lt c+a > dislocation in HCP crystals. Specifically, high-resolution transmission electron microscopy has been used to identify {11 (2) over bar1} twin nuclei in HCP rhenium, providing evidence of their nucleation from a   lt c+a > dislocation. The favorability of this dislocation-based nucleation mechanism is rationalized by an anisotropic elasticity model of   lt c+a > dislocation dissociation, parametrized by density functional theory calculations, which suggests the conditions for disconnection nucleation and propagation, under which this {11 (2) over bar1} twinning mechanism is expected to be effective. The analysis serves to advance our understanding of the origin of the unique predominance of {11 (2) over bar1} twinning in rhenium, which correlates with the high strength and ductility featured by this metal. It also provides new insights into design strategies that may be effective in activating this twinning mode and enhancing the balance between strength and ductility in HCP alloys more broadly.
T2  - Acta Materialia
T1  - Twin nucleation from a single   lt c plus a > dislocation in hexagonal close-packed crystals
EP  - 41
SP  - 35
VL  - 202
DO  - 10.1016/j.actamat.2020.10.038
ER  - 

@article{
author = "Jiang, Lu and Radmilović, Velimir R. and Sabisch, Julian E. C. and Qi, Liang and Minor, Andrew M. and Chrzan, Daryl C. and Asta, Mark",
year = "2021",
abstract = "Twinning plays an important role in governing the balance between strength and ductility in hexagonal-close-packed (HCP) metals. Here, we report a combined experimental and theoretical study of twin nucleation from a single   lt c+a > dislocation in HCP crystals. Specifically, high-resolution transmission electron microscopy has been used to identify {11 (2) over bar1} twin nuclei in HCP rhenium, providing evidence of their nucleation from a   lt c+a > dislocation. The favorability of this dislocation-based nucleation mechanism is rationalized by an anisotropic elasticity model of   lt c+a > dislocation dissociation, parametrized by density functional theory calculations, which suggests the conditions for disconnection nucleation and propagation, under which this {11 (2) over bar1} twinning mechanism is expected to be effective. The analysis serves to advance our understanding of the origin of the unique predominance of {11 (2) over bar1} twinning in rhenium, which correlates with the high strength and ductility featured by this metal. It also provides new insights into design strategies that may be effective in activating this twinning mode and enhancing the balance between strength and ductility in HCP alloys more broadly.",
journal = "Acta Materialia",
title = "Twin nucleation from a single   lt c plus a > dislocation in hexagonal close-packed crystals",
pages = "41-35",
volume = "202",
doi = "10.1016/j.actamat.2020.10.038"
}

Jiang, L., Radmilović, V. R., Sabisch, J. E. C., Qi, L., Minor, A. M., Chrzan, D. C.,& Asta, M.. (2021). Twin nucleation from a single   lt c plus a > dislocation in hexagonal close-packed crystals. in Acta Materialia, 202, 35-41.
https://doi.org/10.1016/j.actamat.2020.10.038

Jiang L, Radmilović VR, Sabisch JEC, Qi L, Minor AM, Chrzan DC, Asta M. Twin nucleation from a single   lt c plus a > dislocation in hexagonal close-packed crystals. in Acta Materialia. 2021;202:35-41.
doi:10.1016/j.actamat.2020.10.038 .

Jiang, Lu, Radmilović, Velimir R., Sabisch, Julian E. C., Qi, Liang, Minor, Andrew M., Chrzan, Daryl C., Asta, Mark, "Twin nucleation from a single   lt c plus a > dislocation in hexagonal close-packed crystals" in Acta Materialia, 202 (2021):35-41,
https://doi.org/10.1016/j.actamat.2020.10.038 . .

TY  - JOUR
AU  - Mijailović, Daniel
AU  - Radmilović, Vuk
AU  - Lačnjevac, Uroš
AU  - Stojanović, Dušica
AU  - Jović, Vladimir D.
AU  - Radmilović, Velimir R.
AU  - Uskoković, Petar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4434
AB  - We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and subsequent calcination. Benefiting from the obtained core-shell structure, this composite has exhibited high specific capacitance in the two-electrode configuration, up to 384 F g(-1) at 0.28 A g(-1), with no capacitance loss after 2000 cycles at 50 mV s(-1). The incorporation of spinel nanocrystals improved the capacitive performances of composite fibers due to a synergistic effect of redox-active shells and the conductive cores, making this novel material promising for symmetrical supercapacitors.
PB  - Elsevier B.V.
T2  - Applied Surface Science
T1  - Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors
SP  - 147678
VL  - 534
DO  - 10.1016/j.apsusc.2020.147678
ER  - 

@article{
author = "Mijailović, Daniel and Radmilović, Vuk and Lačnjevac, Uroš and Stojanović, Dušica and Jović, Vladimir D. and Radmilović, Velimir R. and Uskoković, Petar",
year = "2020",
abstract = "We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and subsequent calcination. Benefiting from the obtained core-shell structure, this composite has exhibited high specific capacitance in the two-electrode configuration, up to 384 F g(-1) at 0.28 A g(-1), with no capacitance loss after 2000 cycles at 50 mV s(-1). The incorporation of spinel nanocrystals improved the capacitive performances of composite fibers due to a synergistic effect of redox-active shells and the conductive cores, making this novel material promising for symmetrical supercapacitors.",
publisher = "Elsevier B.V.",
journal = "Applied Surface Science",
title = "Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors",
pages = "147678",
volume = "534",
doi = "10.1016/j.apsusc.2020.147678"
}

Mijailović, D., Radmilović, V., Lačnjevac, U., Stojanović, D., Jović, V. D., Radmilović, V. R.,& Uskoković, P.. (2020). Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors. in Applied Surface Science
Elsevier B.V.., 534, 147678.
https://doi.org/10.1016/j.apsusc.2020.147678

Mijailović D, Radmilović V, Lačnjevac U, Stojanović D, Jović VD, Radmilović VR, Uskoković P. Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors. in Applied Surface Science. 2020;534:147678.
doi:10.1016/j.apsusc.2020.147678 .

Mijailović, Daniel, Radmilović, Vuk, Lačnjevac, Uroš, Stojanović, Dušica, Jović, Vladimir D., Radmilović, Velimir R., Uskoković, Petar, "Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors" in Applied Surface Science, 534 (2020):147678,
https://doi.org/10.1016/j.apsusc.2020.147678 . .

TY  - JOUR
AU  - Nikolić, Irena
AU  - Đurović, Dijana
AU  - Tadić, Milena
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4356
AB  - Two adsorbents, pristine electric arc furnace slag (EAFS) and alkali activated slag (AAS) were used for Cu2+ removal from aquatic solutions. Batch adsorption tests were conducted at various temperatures and initial Cu2+ concentrations, while solid to liquid ratio and pH of solution were kept constant. Pseudo-first-order and pseudo-second-order (PSO) kinetics models, Langmuir and Freundlich isotherm models, as well as intraparticle and Boyd's diffusion models were applied in order to investigate the adsorption process. It has been found that alkali activation of EAFS leads to an increase in the specific surface of slag and thus improves the sorption properties of EAFS. The adsorption of Cu2+ onto both adsorbents proceeds via PSO adsorption mechanism, film diffusion mainly controls the adsorption process, and Langmuir isotherm model fits well the experimental data. Results indicated a fast adsorption process which is spontaneous and endothermic in nature. Microstructural investigation of EAFS and AAS revealed morphological changes in metal loaded EAFS and AAS samples in comparison to unloaded adsorbents. X-ray powder diffraction analysis indicated that adsorption of Cu2+ onto both adsorbents occurs through formation of a Cu-complex.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Chemical Engineering Communications
T1  - Adsorption kinetics, equilibrium, and thermodynamics of Cu2+ on pristine and alkali activated steel slag
EP  - 1297
IS  - 9
SP  - 1278
VL  - 207
DO  - 10.1080/00986445.2019.1685986
ER  - 

@article{
author = "Nikolić, Irena and Đurović, Dijana and Tadić, Milena and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2020",
abstract = "Two adsorbents, pristine electric arc furnace slag (EAFS) and alkali activated slag (AAS) were used for Cu2+ removal from aquatic solutions. Batch adsorption tests were conducted at various temperatures and initial Cu2+ concentrations, while solid to liquid ratio and pH of solution were kept constant. Pseudo-first-order and pseudo-second-order (PSO) kinetics models, Langmuir and Freundlich isotherm models, as well as intraparticle and Boyd's diffusion models were applied in order to investigate the adsorption process. It has been found that alkali activation of EAFS leads to an increase in the specific surface of slag and thus improves the sorption properties of EAFS. The adsorption of Cu2+ onto both adsorbents proceeds via PSO adsorption mechanism, film diffusion mainly controls the adsorption process, and Langmuir isotherm model fits well the experimental data. Results indicated a fast adsorption process which is spontaneous and endothermic in nature. Microstructural investigation of EAFS and AAS revealed morphological changes in metal loaded EAFS and AAS samples in comparison to unloaded adsorbents. X-ray powder diffraction analysis indicated that adsorption of Cu2+ onto both adsorbents occurs through formation of a Cu-complex.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Chemical Engineering Communications",
title = "Adsorption kinetics, equilibrium, and thermodynamics of Cu2+ on pristine and alkali activated steel slag",
pages = "1297-1278",
number = "9",
volume = "207",
doi = "10.1080/00986445.2019.1685986"
}

Nikolić, I., Đurović, D., Tadić, M., Radmilović, V.,& Radmilović, V. R.. (2020). Adsorption kinetics, equilibrium, and thermodynamics of Cu2+ on pristine and alkali activated steel slag. in Chemical Engineering Communications
Taylor & Francis Inc, Philadelphia., 207(9), 1278-1297.
https://doi.org/10.1080/00986445.2019.1685986

Nikolić I, Đurović D, Tadić M, Radmilović V, Radmilović VR. Adsorption kinetics, equilibrium, and thermodynamics of Cu2+ on pristine and alkali activated steel slag. in Chemical Engineering Communications. 2020;207(9):1278-1297.
doi:10.1080/00986445.2019.1685986 .

Nikolić, Irena, Đurović, Dijana, Tadić, Milena, Radmilović, Vuk, Radmilović, Velimir R., "Adsorption kinetics, equilibrium, and thermodynamics of Cu2+ on pristine and alkali activated steel slag" in Chemical Engineering Communications, 207, no. 9 (2020):1278-1297,
https://doi.org/10.1080/00986445.2019.1685986 . .

TY  - JOUR
AU  - Nikolić, Irena
AU  - Đurović, Dijana
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4424
AB  - Steel production in electric arc furnaces yielding formation of two waste materials, toxic electric arc furnace dust (EAFD) and non-hazardous electric arc furnace slag (EAFS). EAFD presents a potential hazard to the environment as it is characterized by the presence of heavy metals. This study dealt with the synthesis and characterization of alkali activated slag cement (AAS) based on EAFS with addition of 1-7% of Zn-rich EAFD dopant. Effects of slag replacement with dust on the compressive strength, physico-chemical, mineralogical and morphological properties of AAS cement were evaluated. This replacement lead to the development of porosity of AAS matrix, and retardation of slag alkali activation which resulted in the weakening of the AAS structure and hence in compressive strength decrease as pure AAS cement compressive strength was 21.04 MPa while AAS doped with 7% of EAFD reached only 8.4 MPa. On the other hand, AAS doped with 5% of EAFD exhibited compressive strength of 13.82 MPa, making it is still suitable for construction purposes... Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), scanning transmission electron microscope (STEM) in high angle annular dark field (HAADF) mode, X-ray powder diffraction (XRPD) investigations and standard EN 12457-2 leaching test provided information on the ability of AAS based on EAFS to fix Zn in AAS matrix.. The concentration of Zn in leachate of AAS cement doped with 5% of EAFD was 9.20 mg/kg which is below the limit prescribed for the granular waste acceptable at non-hazardous landfills according the European Directive 2003/33/CE.
PB  - Elsevier
T2  - Journal of Materials Research and Technology
T1  - Alkali activated slag cement doped with Zn-rich electric arc furnace dust
EP  - 12794
IS  - 6
SP  - 12783
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4424
ER  - 

@article{
author = "Nikolić, Irena and Đurović, Dijana and Marković, Smilja and Veselinović, Ljiljana and Janković-Častvan, Ivona and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2020",
abstract = "Steel production in electric arc furnaces yielding formation of two waste materials, toxic electric arc furnace dust (EAFD) and non-hazardous electric arc furnace slag (EAFS). EAFD presents a potential hazard to the environment as it is characterized by the presence of heavy metals. This study dealt with the synthesis and characterization of alkali activated slag cement (AAS) based on EAFS with addition of 1-7% of Zn-rich EAFD dopant. Effects of slag replacement with dust on the compressive strength, physico-chemical, mineralogical and morphological properties of AAS cement were evaluated. This replacement lead to the development of porosity of AAS matrix, and retardation of slag alkali activation which resulted in the weakening of the AAS structure and hence in compressive strength decrease as pure AAS cement compressive strength was 21.04 MPa while AAS doped with 7% of EAFD reached only 8.4 MPa. On the other hand, AAS doped with 5% of EAFD exhibited compressive strength of 13.82 MPa, making it is still suitable for construction purposes... Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), scanning transmission electron microscope (STEM) in high angle annular dark field (HAADF) mode, X-ray powder diffraction (XRPD) investigations and standard EN 12457-2 leaching test provided information on the ability of AAS based on EAFS to fix Zn in AAS matrix.. The concentration of Zn in leachate of AAS cement doped with 5% of EAFD was 9.20 mg/kg which is below the limit prescribed for the granular waste acceptable at non-hazardous landfills according the European Directive 2003/33/CE.",
publisher = "Elsevier",
journal = "Journal of Materials Research and Technology",
title = "Alkali activated slag cement doped with Zn-rich electric arc furnace dust",
pages = "12794-12783",
number = "6",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4424"
}

Nikolić, I., Đurović, D., Marković, S., Veselinović, L., Janković-Častvan, I., Radmilović, V.,& Radmilović, V. R.. (2020). Alkali activated slag cement doped with Zn-rich electric arc furnace dust. in Journal of Materials Research and Technology
Elsevier., 9(6), 12783-12794.
https://hdl.handle.net/21.15107/rcub_technorep_4424

Nikolić I, Đurović D, Marković S, Veselinović L, Janković-Častvan I, Radmilović V, Radmilović VR. Alkali activated slag cement doped with Zn-rich electric arc furnace dust. in Journal of Materials Research and Technology. 2020;9(6):12783-12794.
https://hdl.handle.net/21.15107/rcub_technorep_4424 .

Nikolić, Irena, Đurović, Dijana, Marković, Smilja, Veselinović, Ljiljana, Janković-Častvan, Ivona, Radmilović, Vuk, Radmilović, Velimir R., "Alkali activated slag cement doped with Zn-rich electric arc furnace dust" in Journal of Materials Research and Technology, 9, no. 6 (2020):12783-12794,
https://hdl.handle.net/21.15107/rcub_technorep_4424 .

TY  - JOUR
AU  - Nikolić, Irena
AU  - Đurović, Dijana
AU  - Marković, Smilja
AU  - Veselinović, Liljana
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4743
AB  - Steel production in electric arc furnaces yielding formation of two waste materials, toxic electric arc furnace dust (EAFD) and non-hazardous electric arc furnace slag (EAFS). EAFD presents a potential hazard to the environment as it is characterized by the presence of heavy metals. This study dealt with the synthesis and characterization of alkali activated slag cement (AAS) based on EAFS with addition of 1-7% of Zn-rich EAFD dopant. Effects of slag replacement with dust on the compressive strength, physico-chemical, mineralogical and morphological properties of AAS cement were evaluated. This replacement lead to the development of porosity of AAS matrix, and retardation of slag alkali activation which resulted in the weakening of the AAS structure and hence in compressive strength decrease as pure AAS cement compressive strength was 21.04 MPa while AAS doped with 7% of EAFD reached only 8.4 MPa. On the other hand, AAS doped with 5% of EAFD exhibited compressive strength of 13.82 MPa, making it is still suitable for construction purposes... Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), scanning transmission electron microscope (STEM) in high angle annular dark field (HAADF) mode, X-ray powder diffraction (XRPD) investigations and standard EN 12457-2 leaching test provided information on the ability of AAS based on EAFS to fix Zn in AAS matrix.. The concentration of Zn in leachate of AAS cement doped with 5% of EAFD was 9.20 mg/kg which is below the limit prescribed for the granular waste acceptable at non-hazardous landfills according the European Directive 2003/33/CE.
T2  - Journal of Materials Research and Technology-JMR&T
T1  - Alkali activated slag cement doped with Zn-rich electric arc furnace dust
EP  - 12794
IS  - 6
SP  - 12783
VL  - 9
DO  - 10.1016/j.jmrt.2020.09.024
ER  - 

@article{
author = "Nikolić, Irena and Đurović, Dijana and Marković, Smilja and Veselinović, Liljana and Janković-Častvan, Ivona and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2020",
abstract = "Steel production in electric arc furnaces yielding formation of two waste materials, toxic electric arc furnace dust (EAFD) and non-hazardous electric arc furnace slag (EAFS). EAFD presents a potential hazard to the environment as it is characterized by the presence of heavy metals. This study dealt with the synthesis and characterization of alkali activated slag cement (AAS) based on EAFS with addition of 1-7% of Zn-rich EAFD dopant. Effects of slag replacement with dust on the compressive strength, physico-chemical, mineralogical and morphological properties of AAS cement were evaluated. This replacement lead to the development of porosity of AAS matrix, and retardation of slag alkali activation which resulted in the weakening of the AAS structure and hence in compressive strength decrease as pure AAS cement compressive strength was 21.04 MPa while AAS doped with 7% of EAFD reached only 8.4 MPa. On the other hand, AAS doped with 5% of EAFD exhibited compressive strength of 13.82 MPa, making it is still suitable for construction purposes... Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), scanning transmission electron microscope (STEM) in high angle annular dark field (HAADF) mode, X-ray powder diffraction (XRPD) investigations and standard EN 12457-2 leaching test provided information on the ability of AAS based on EAFS to fix Zn in AAS matrix.. The concentration of Zn in leachate of AAS cement doped with 5% of EAFD was 9.20 mg/kg which is below the limit prescribed for the granular waste acceptable at non-hazardous landfills according the European Directive 2003/33/CE.",
journal = "Journal of Materials Research and Technology-JMR&T",
title = "Alkali activated slag cement doped with Zn-rich electric arc furnace dust",
pages = "12794-12783",
number = "6",
volume = "9",
doi = "10.1016/j.jmrt.2020.09.024"
}

Nikolić, I., Đurović, D., Marković, S., Veselinović, L., Janković-Častvan, I., Radmilović, V.,& Radmilović, V. R.. (2020). Alkali activated slag cement doped with Zn-rich electric arc furnace dust. in Journal of Materials Research and Technology-JMR&T, 9(6), 12783-12794.
https://doi.org/10.1016/j.jmrt.2020.09.024

Nikolić I, Đurović D, Marković S, Veselinović L, Janković-Častvan I, Radmilović V, Radmilović VR. Alkali activated slag cement doped with Zn-rich electric arc furnace dust. in Journal of Materials Research and Technology-JMR&T. 2020;9(6):12783-12794.
doi:10.1016/j.jmrt.2020.09.024 .

Nikolić, Irena, Đurović, Dijana, Marković, Smilja, Veselinović, Liljana, Janković-Častvan, Ivona, Radmilović, Vuk, Radmilović, Velimir R., "Alkali activated slag cement doped with Zn-rich electric arc furnace dust" in Journal of Materials Research and Technology-JMR&T, 9, no. 6 (2020):12783-12794,
https://doi.org/10.1016/j.jmrt.2020.09.024 . .

TY  - JOUR
AU  - Đokić, Veljko
AU  - Marinković, Aleksandar
AU  - Petrović, Rada
AU  - Ersen, Ovidiu
AU  - Zafeiratos, Spyridon
AU  - Mitrić, Miodrag
AU  - Ophus, Colin
AU  - Radmilović, Velimir R.
AU  - Janaćković, Đorđe
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4470
AB  - The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication of rutile TiO2 nanorod crystals (RTiO(2)NRs) having high ratios of oxidative {111} to reductive {110} surfaces. RTiO(2)NRs were synthesized using a peroxo-titanium complex (PTC) approach, which was controlled by changing the Ti/H2O2 ratio. The thus obtained RTiO(2)NRs revealed a high tendency to agglomerate through orientation-dependent attachment along the {110} facets. This resulted in an increased {111}/{110} surface ratio and led to a markedly improved photocatalytic activity of RTiO2NR aggregates. The reported findings illustrate the rich potential of the herein proposed facile and energy-efficient synthesis of nanostructured rutile TiO2-based photocatalysts.
PB  - Amer Chemical Soc, Washington
T2  - ACS Applied Materials & Interfaces
T1  - Highly Active Rutile TiO2 Nanocrystalline Photocatalysts
EP  - 33068
IS  - 29
SP  - 33058
VL  - 12
DO  - 10.1021/acsami.0c03150
ER  - 

@article{
author = "Đokić, Veljko and Marinković, Aleksandar and Petrović, Rada and Ersen, Ovidiu and Zafeiratos, Spyridon and Mitrić, Miodrag and Ophus, Colin and Radmilović, Velimir R. and Janaćković, Đorđe",
year = "2020",
abstract = "The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication of rutile TiO2 nanorod crystals (RTiO(2)NRs) having high ratios of oxidative {111} to reductive {110} surfaces. RTiO(2)NRs were synthesized using a peroxo-titanium complex (PTC) approach, which was controlled by changing the Ti/H2O2 ratio. The thus obtained RTiO(2)NRs revealed a high tendency to agglomerate through orientation-dependent attachment along the {110} facets. This resulted in an increased {111}/{110} surface ratio and led to a markedly improved photocatalytic activity of RTiO2NR aggregates. The reported findings illustrate the rich potential of the herein proposed facile and energy-efficient synthesis of nanostructured rutile TiO2-based photocatalysts.",
publisher = "Amer Chemical Soc, Washington",
journal = "ACS Applied Materials & Interfaces",
title = "Highly Active Rutile TiO2 Nanocrystalline Photocatalysts",
pages = "33068-33058",
number = "29",
volume = "12",
doi = "10.1021/acsami.0c03150"
}

Đokić, V., Marinković, A., Petrović, R., Ersen, O., Zafeiratos, S., Mitrić, M., Ophus, C., Radmilović, V. R.,& Janaćković, Đ.. (2020). Highly Active Rutile TiO2 Nanocrystalline Photocatalysts. in ACS Applied Materials & Interfaces
Amer Chemical Soc, Washington., 12(29), 33058-33068.
https://doi.org/10.1021/acsami.0c03150

Đokić V, Marinković A, Petrović R, Ersen O, Zafeiratos S, Mitrić M, Ophus C, Radmilović VR, Janaćković Đ. Highly Active Rutile TiO2 Nanocrystalline Photocatalysts. in ACS Applied Materials & Interfaces. 2020;12(29):33058-33068.
doi:10.1021/acsami.0c03150 .

Đokić, Veljko, Marinković, Aleksandar, Petrović, Rada, Ersen, Ovidiu, Zafeiratos, Spyridon, Mitrić, Miodrag, Ophus, Colin, Radmilović, Velimir R., Janaćković, Đorđe, "Highly Active Rutile TiO2 Nanocrystalline Photocatalysts" in ACS Applied Materials & Interfaces, 12, no. 29 (2020):33058-33068,
https://doi.org/10.1021/acsami.0c03150 . .

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  - CONF
AU  - Mijailović, Daniel
AU  - Lačnjevac, Uroš
AU  - Jović, Vladimir
AU  - Stojanović, Dušica
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir
AU  - Uskoković, Petar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5979
AB  - Herein, a novel composite material of coupled carbon fibers and Co1.5Mn1.5O4 spinel oxide crystals has
been fabricated by a facile twoͲstage process. In the first stage, fibers were produced by singleͲspinneret
electrospinning of polymer solutions with the cobalt and manganese acetate precursors. In the second stage, fibers
were heatͲtreated to convert them into composite structure. Scanning electron microscopy (SEM) analysis confirmed
the formation of composite fibers with spinel crystals deposited on the surface. Scanning transmission electron
microscopy (STEM) and energy dispersive XͲray spectroscopy (EDS) analysis of composite fibers crossͲsection revealed
that carbon occupies space inside spinel rings. The composite electrode delivers a specific capacity of about 740 mAh
g
–1, at a current density of 5 A g–1 in alkaline solution, which is more than 37 times superior to neat carbon fibers.
Furthermore, the electrode retained 135% of its initial capacity, after 1000 cycles of galvanostatic charge/discharge at
5 A gо1.
PB  - Faculty of Mechanical engineering, University of Belgrade
C3  - YOUng ResearcherS Conference 2019
T1  - Synthesis and Supercapacitive Performances of Electrospun Carbon Nanofibers Decorated with Spinel Co1.5Mn1.5O4 Nanocrystals
EP  - 20
SP  - 17
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5979
ER  - 

@conference{
author = "Mijailović, Daniel and Lačnjevac, Uroš and Jović, Vladimir and Stojanović, Dušica and Radmilović, Vuk and Radmilović, Velimir and Uskoković, Petar",
year = "2019",
abstract = "Herein, a novel composite material of coupled carbon fibers and Co1.5Mn1.5O4 spinel oxide crystals has
been fabricated by a facile twoͲstage process. In the first stage, fibers were produced by singleͲspinneret
electrospinning of polymer solutions with the cobalt and manganese acetate precursors. In the second stage, fibers
were heatͲtreated to convert them into composite structure. Scanning electron microscopy (SEM) analysis confirmed
the formation of composite fibers with spinel crystals deposited on the surface. Scanning transmission electron
microscopy (STEM) and energy dispersive XͲray spectroscopy (EDS) analysis of composite fibers crossͲsection revealed
that carbon occupies space inside spinel rings. The composite electrode delivers a specific capacity of about 740 mAh
g
–1, at a current density of 5 A g–1 in alkaline solution, which is more than 37 times superior to neat carbon fibers.
Furthermore, the electrode retained 135% of its initial capacity, after 1000 cycles of galvanostatic charge/discharge at
5 A gо1.",
publisher = "Faculty of Mechanical engineering, University of Belgrade",
journal = "YOUng ResearcherS Conference 2019",
title = "Synthesis and Supercapacitive Performances of Electrospun Carbon Nanofibers Decorated with Spinel Co1.5Mn1.5O4 Nanocrystals",
pages = "20-17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5979"
}

Mijailović, D., Lačnjevac, U., Jović, V., Stojanović, D., Radmilović, V., Radmilović, V.,& Uskoković, P.. (2019). Synthesis and Supercapacitive Performances of Electrospun Carbon Nanofibers Decorated with Spinel Co1.5Mn1.5O4 Nanocrystals. in YOUng ResearcherS Conference 2019
Faculty of Mechanical engineering, University of Belgrade., 17-20.
https://hdl.handle.net/21.15107/rcub_technorep_5979

Mijailović D, Lačnjevac U, Jović V, Stojanović D, Radmilović V, Radmilović V, Uskoković P. Synthesis and Supercapacitive Performances of Electrospun Carbon Nanofibers Decorated with Spinel Co1.5Mn1.5O4 Nanocrystals. in YOUng ResearcherS Conference 2019. 2019;:17-20.
https://hdl.handle.net/21.15107/rcub_technorep_5979 .

Mijailović, Daniel, Lačnjevac, Uroš, Jović, Vladimir, Stojanović, Dušica, Radmilović, Vuk, Radmilović, Velimir, Uskoković, Petar, "Synthesis and Supercapacitive Performances of Electrospun Carbon Nanofibers Decorated with Spinel Co1.5Mn1.5O4 Nanocrystals" in YOUng ResearcherS Conference 2019 (2019):17-20,
https://hdl.handle.net/21.15107/rcub_technorep_5979 .

TY  - JOUR
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4058
AB  - Structural defects such as stacking faults and twins, observed in many face-centered cubic (FCC) structured metals and alloys with low stacking fault energies, in general, play an important role in microstructure evolution, and in particular, in nucleation and crystal growth, morphology development, and phase transformations during synthesis as well as post-synthesis processes.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Defect formation during synthesis and welding of silver nanowires for solar cell applications
EP  - 299
IS  - 4
SP  - 287
VL  - 25
DO  - 10.30544/452
ER  - 

@article{
author = "Radmilović, Vuk and Radmilović, Velimir R.",
year = "2019",
abstract = "Structural defects such as stacking faults and twins, observed in many face-centered cubic (FCC) structured metals and alloys with low stacking fault energies, in general, play an important role in microstructure evolution, and in particular, in nucleation and crystal growth, morphology development, and phase transformations during synthesis as well as post-synthesis processes.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Defect formation during synthesis and welding of silver nanowires for solar cell applications",
pages = "299-287",
number = "4",
volume = "25",
doi = "10.30544/452"
}

Radmilović, V.,& Radmilović, V. R.. (2019). Defect formation during synthesis and welding of silver nanowires for solar cell applications. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 25(4), 287-299.
https://doi.org/10.30544/452

Radmilović V, Radmilović VR. Defect formation during synthesis and welding of silver nanowires for solar cell applications. in Metallurgical & Materials Engineering. 2019;25(4):287-299.
doi:10.30544/452 .

Radmilović, Vuk, Radmilović, Velimir R., "Defect formation during synthesis and welding of silver nanowires for solar cell applications" in Metallurgical & Materials Engineering, 25, no. 4 (2019):287-299,
https://doi.org/10.30544/452 . .

TY  - CONF
AU  - Nikolić, Irena
AU  - Milašević, Ivana
AU  - Cupara, Nevena
AU  - Ivanović, Ljubica
AU  - Đurović, Dijana
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4178
AB  - Electric arc furnace slag (EAFS) and electric arc furnace dust (EAFD) are the waste materials generated during the iron and steel scrap remelting in electric arc furnace. EAFS is non-hazardous material which has found its application in different field of civil engineering. On the other hand, EAFD is classified as hazardous matreials due to the presence of heavy metals (Zn, Pb, Cu Cr and Cd) and their potential leaching into environment. Stabilization/solidification (S/S) of toxic waste is a widely investigated as simply method for production of stable product. Cement binder was mainly used for this purpose but important shift in the use of different waste materials as a cement replacement was observed. The aim of this study was to investigate the possibility of S/S of heavy metals from EAFD using the alkali activated binders based on EAFS. The alkali activated slag with a different content of EAFS was synthesised and characterized using the SEM/EDS, XRDP, FTIR. The binding of Zn into the reaction product of slag alkali activation was founded. The immobilization efficacy was evaluated using TCLP Method No. 1311 (USEPA) and EN 12457-2 (EULFD) leaching tests.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World R
T1  - A novel type of building material derived from the by-products of steel making industry
SP  - 84
VL  - 84
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4178
ER  - 

@conference{
author = "Nikolić, Irena and Milašević, Ivana and Cupara, Nevena and Ivanović, Ljubica and Đurović, Dijana and Marković, Smilja and Veselinović, Ljiljana and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2019",
abstract = "Electric arc furnace slag (EAFS) and electric arc furnace dust (EAFD) are the waste materials generated during the iron and steel scrap remelting in electric arc furnace. EAFS is non-hazardous material which has found its application in different field of civil engineering. On the other hand, EAFD is classified as hazardous matreials due to the presence of heavy metals (Zn, Pb, Cu Cr and Cd) and their potential leaching into environment. Stabilization/solidification (S/S) of toxic waste is a widely investigated as simply method for production of stable product. Cement binder was mainly used for this purpose but important shift in the use of different waste materials as a cement replacement was observed. The aim of this study was to investigate the possibility of S/S of heavy metals from EAFD using the alkali activated binders based on EAFS. The alkali activated slag with a different content of EAFS was synthesised and characterized using the SEM/EDS, XRDP, FTIR. The binding of Zn into the reaction product of slag alkali activation was founded. The immobilization efficacy was evaluated using TCLP Method No. 1311 (USEPA) and EN 12457-2 (EULFD) leaching tests.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World R",
title = "A novel type of building material derived from the by-products of steel making industry",
pages = "84",
volume = "84",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4178"
}

Nikolić, I., Milašević, I., Cupara, N., Ivanović, L., Đurović, D., Marković, S., Veselinović, L., Radmilović, V.,& Radmilović, V. R.. (2019). A novel type of building material derived from the by-products of steel making industry. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World R
Belgrade : Materials Research Society of Serbia., 84, 84.
https://hdl.handle.net/21.15107/rcub_technorep_4178

Nikolić I, Milašević I, Cupara N, Ivanović L, Đurović D, Marković S, Veselinović L, Radmilović V, Radmilović VR. A novel type of building material derived from the by-products of steel making industry. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World R. 2019;84:84.
https://hdl.handle.net/21.15107/rcub_technorep_4178 .

Nikolić, Irena, Milašević, Ivana, Cupara, Nevena, Ivanović, Ljubica, Đurović, Dijana, Marković, Smilja, Veselinović, Ljiljana, Radmilović, Vuk, Radmilović, Velimir R., "A novel type of building material derived from the by-products of steel making industry" in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World R, 84 (2019):84,
https://hdl.handle.net/21.15107/rcub_technorep_4178 .

TY  - JOUR
AU  - Hou, Yi
AU  - Xie, Chen
AU  - Radmilović, Vuk
AU  - Puscher, Bianka
AU  - Wu, Mingjian
AU  - Heumueller, Thomas
AU  - Karl, Andre
AU  - Li, Ning
AU  - Tang, Xiaofeng
AU  - Meng, Wei
AU  - Chen, Shi
AU  - Osvet, Andres
AU  - Guldi, Dirk
AU  - Spiecker, Erdmann
AU  - Radmilović, Velimir R.
AU  - Brabec, Christoph J.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4184
AB  - Mesoscale-structured materials offer broad opportunities in extremely diverse applications owing to their high surface areas, tunable surface energy, and large pore volume. These benefits may improve the performance of materials in terms of carrier density, charge transport, and stability. Although metal oxides-based mesoscale-structured materials, such as TiO2, predominantly hold the record efficiency in perovskite solar cells, high temperatures (above 400 degrees C) and limited materials choices still challenge the community. A novel route to fabricate organic-based mesoscale-structured interfaces (OMI) for perovskite solar cells using a low-temperature and green solvent-based process is presented here. The efficient infiltration of organic porous structures based on crystalline nanoparticles allows engineering efficient "n-i-p" and "p-i-n" perovskite solar cells with enhanced thermal stability, good performance, and excellent lateral homogeneity. The results show that this method is universal for multiple organic electronic materials, which opens the door to transform a wide variety of organic-based semiconductors into scalable n- or p-type porous interfaces for diverse advanced applications.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Advanced Materials
T1  - Assembling Mesoscale-Structured Organic Interfaces in Perovskite Photovoltaics
IS  - 8
VL  - 31
DO  - 10.1002/adma.201806516
ER  - 

@article{
author = "Hou, Yi and Xie, Chen and Radmilović, Vuk and Puscher, Bianka and Wu, Mingjian and Heumueller, Thomas and Karl, Andre and Li, Ning and Tang, Xiaofeng and Meng, Wei and Chen, Shi and Osvet, Andres and Guldi, Dirk and Spiecker, Erdmann and Radmilović, Velimir R. and Brabec, Christoph J.",
year = "2019",
abstract = "Mesoscale-structured materials offer broad opportunities in extremely diverse applications owing to their high surface areas, tunable surface energy, and large pore volume. These benefits may improve the performance of materials in terms of carrier density, charge transport, and stability. Although metal oxides-based mesoscale-structured materials, such as TiO2, predominantly hold the record efficiency in perovskite solar cells, high temperatures (above 400 degrees C) and limited materials choices still challenge the community. A novel route to fabricate organic-based mesoscale-structured interfaces (OMI) for perovskite solar cells using a low-temperature and green solvent-based process is presented here. The efficient infiltration of organic porous structures based on crystalline nanoparticles allows engineering efficient "n-i-p" and "p-i-n" perovskite solar cells with enhanced thermal stability, good performance, and excellent lateral homogeneity. The results show that this method is universal for multiple organic electronic materials, which opens the door to transform a wide variety of organic-based semiconductors into scalable n- or p-type porous interfaces for diverse advanced applications.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Advanced Materials",
title = "Assembling Mesoscale-Structured Organic Interfaces in Perovskite Photovoltaics",
number = "8",
volume = "31",
doi = "10.1002/adma.201806516"
}

Hou, Y., Xie, C., Radmilović, V., Puscher, B., Wu, M., Heumueller, T., Karl, A., Li, N., Tang, X., Meng, W., Chen, S., Osvet, A., Guldi, D., Spiecker, E., Radmilović, V. R.,& Brabec, C. J.. (2019). Assembling Mesoscale-Structured Organic Interfaces in Perovskite Photovoltaics. in Advanced Materials
Wiley-VCH Verlag Gmbh, Weinheim., 31(8).
https://doi.org/10.1002/adma.201806516

Hou Y, Xie C, Radmilović V, Puscher B, Wu M, Heumueller T, Karl A, Li N, Tang X, Meng W, Chen S, Osvet A, Guldi D, Spiecker E, Radmilović VR, Brabec CJ. Assembling Mesoscale-Structured Organic Interfaces in Perovskite Photovoltaics. in Advanced Materials. 2019;31(8).
doi:10.1002/adma.201806516 .

Hou, Yi, Xie, Chen, Radmilović, Vuk, Puscher, Bianka, Wu, Mingjian, Heumueller, Thomas, Karl, Andre, Li, Ning, Tang, Xiaofeng, Meng, Wei, Chen, Shi, Osvet, Andres, Guldi, Dirk, Spiecker, Erdmann, Radmilović, Velimir R., Brabec, Christoph J., "Assembling Mesoscale-Structured Organic Interfaces in Perovskite Photovoltaics" in Advanced Materials, 31, no. 8 (2019),
https://doi.org/10.1002/adma.201806516 . .

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  - Nikolić, Irena
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana
AU  - Radmilović, Vuk
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Velimir R.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4339
AB  - Pristine electric arc furnace slag (EAFS) as well as EAFS modified by alkali activation i.e. alkali activated slag (AAS) have found a novel application as adsorbents used in Cu2+ removal from sulfate solutions. The adsorption tests were carried in batch conditions and results have shown that alkali activation of EAFS enhances the Cu2+ adsorption. The adsorption process was found to follow a pseudo second-order kinetic model and occurs via formation of posnjakite (Cu-4(SO4)(OH)(6)center dot H2O) on the surface of both, EAFS and AAS. Enhanced adsorption properties of AAS, compared to EAFS, are attributed to a more porous structure, larger specific surface area and an increased number of surface groups involved in the binding of Cu2+.
PB  - Elsevier Science Bv, Amsterdam
T2  - Materials Letters
T1  - Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag
EP  - 188
SP  - 184
VL  - 235
DO  - 10.1016/j.matlet.2018.10.027
ER  - 

@article{
author = "Nikolić, Irena and Marković, Smilja and Veselinović, Ljiljana and Radmilović, Vuk and Janković-Častvan, Ivona and Radmilović, Velimir R.",
year = "2019",
abstract = "Pristine electric arc furnace slag (EAFS) as well as EAFS modified by alkali activation i.e. alkali activated slag (AAS) have found a novel application as adsorbents used in Cu2+ removal from sulfate solutions. The adsorption tests were carried in batch conditions and results have shown that alkali activation of EAFS enhances the Cu2+ adsorption. The adsorption process was found to follow a pseudo second-order kinetic model and occurs via formation of posnjakite (Cu-4(SO4)(OH)(6)center dot H2O) on the surface of both, EAFS and AAS. Enhanced adsorption properties of AAS, compared to EAFS, are attributed to a more porous structure, larger specific surface area and an increased number of surface groups involved in the binding of Cu2+.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Materials Letters",
title = "Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag",
pages = "188-184",
volume = "235",
doi = "10.1016/j.matlet.2018.10.027"
}

Nikolić, I., Marković, S., Veselinović, L., Radmilović, V., Janković-Častvan, I.,& Radmilović, V. R.. (2019). Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag. in Materials Letters
Elsevier Science Bv, Amsterdam., 235, 184-188.
https://doi.org/10.1016/j.matlet.2018.10.027

Nikolić I, Marković S, Veselinović L, Radmilović V, Janković-Častvan I, Radmilović VR. Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag. in Materials Letters. 2019;235:184-188.
doi:10.1016/j.matlet.2018.10.027 .

Nikolić, Irena, Marković, Smilja, Veselinović, Ljiljana, Radmilović, Vuk, Janković-Častvan, Ivona, Radmilović, Velimir R., "Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag" in Materials Letters, 235 (2019):184-188,
https://doi.org/10.1016/j.matlet.2018.10.027 . .

TY  - CONF
AU  - Nikolić, Irena
AU  - Đurović, Dijana
AU  - Milašević, Ivana
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana
AU  - Radmilović, Vuk
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Velimir R.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3770
AB  - The removal of heavy metals from wastewaters is presently a global imperative primarily due to their well-known toxic nature and detrimental effects on the environment, and more importantly, on human health. Currently, special attention is paid to the use of novel slag based materials – alkali activated slag (AAS) as potential novel adsorbents. Our previous studies have shown that electric arc furnace slag (EAFS) can be successfully used as a precursor for the production of AAS. Generally, alkaline activation involves a chemical reaction between solid aluminosilicate materials and a highly alkaline activator. The alkali activation mechanism of slag involves the dissolution of slag in a highly alkaline, which is followed by the condensation and hardening processes. Dependent on the pH and type of alkaline activator, calcium (alumina) silicate hydrate or C–(A)–S–H gel has been identified as a reaction product of slag alkali activation. The objective of this research was to investigate the removal of Cu2+ from aquatic solution using alkali activated slag (AAS) obtained by alkaline activation of EAFS.
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructu
T1  - Alkali Activated Slag as Adsorbents for Cu2+ Removal from Wastewaters
EP  - 200
SP  - 198
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3770
ER  - 

@conference{
author = "Nikolić, Irena and Đurović, Dijana and Milašević, Ivana and Marković, Smilja and Veselinović, Ljiljana and Radmilović, Vuk and Janković-Častvan, Ivona and Radmilović, Velimir R.",
year = "2018",
abstract = "The removal of heavy metals from wastewaters is presently a global imperative primarily due to their well-known toxic nature and detrimental effects on the environment, and more importantly, on human health. Currently, special attention is paid to the use of novel slag based materials – alkali activated slag (AAS) as potential novel adsorbents. Our previous studies have shown that electric arc furnace slag (EAFS) can be successfully used as a precursor for the production of AAS. Generally, alkaline activation involves a chemical reaction between solid aluminosilicate materials and a highly alkaline activator. The alkali activation mechanism of slag involves the dissolution of slag in a highly alkaline, which is followed by the condensation and hardening processes. Dependent on the pH and type of alkaline activator, calcium (alumina) silicate hydrate or C–(A)–S–H gel has been identified as a reaction product of slag alkali activation. The objective of this research was to investigate the removal of Cu2+ from aquatic solution using alkali activated slag (AAS) obtained by alkaline activation of EAFS.",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructu",
title = "Alkali Activated Slag as Adsorbents for Cu2+ Removal from Wastewaters",
pages = "200-198",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3770"
}

Nikolić, I., Đurović, D., Milašević, I., Marković, S., Veselinović, L., Radmilović, V., Janković-Častvan, I.,& Radmilović, V. R.. (2018). Alkali Activated Slag as Adsorbents for Cu2+ Removal from Wastewaters. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructu
Belgrade : Serbian Academy of Sciences and Arts., 198-200.
https://hdl.handle.net/21.15107/rcub_technorep_3770

Nikolić I, Đurović D, Milašević I, Marković S, Veselinović L, Radmilović V, Janković-Častvan I, Radmilović VR. Alkali Activated Slag as Adsorbents for Cu2+ Removal from Wastewaters. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructu. 2018;:198-200.
https://hdl.handle.net/21.15107/rcub_technorep_3770 .

Nikolić, Irena, Đurović, Dijana, Milašević, Ivana, Marković, Smilja, Veselinović, Ljiljana, Radmilović, Vuk, Janković-Častvan, Ivona, Radmilović, Velimir R., "Alkali Activated Slag as Adsorbents for Cu2+ Removal from Wastewaters" in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructu (2018):198-200,
https://hdl.handle.net/21.15107/rcub_technorep_3770 .

TY  - CONF
AU  - Milašević, Ivana
AU  - Ivanović, Ljubica
AU  - Nikolić, Irena
AU  - Đurović, Dijana
AU  - Marković, Smilja
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3771
AB  - Electric arc furnace slag (EAFS) is the by-product of steel production in an electric arc furnace. In a pass two decade a special attention is paid to the valorization of metallurgical slags by alkali activation. The process involves a chemical reaction of slag with the alkaline activator followed by the condensation and hardening processes. Aluminium-containing calcium silicate hydrate gel i.e. C–(A)–S–H gel with a low C/S ratio has been identified as a reaction product of slag alkali activation. We have synthesized the AAS using the EAFS as the precursor and Na2SiO3 solution as an activator. The AAS samples are characterized by XRD, SEM/EDS and FTIR analysis. Moreover, investigation of mechanical properties dilatometric and porosity analysis were performed as well so as to build up a detailed illustration of AAS properties and possible application of these materials. The results have shown that AAS may reach the compressive strength (~ 40 MPa) which enables its application in a civil engineering. Moreover, the AAS sample exhibits improved strength (~ 50 MPa) at elevated temperatures thus potential application of these materials in a high temperature conditions should be considered. On the other hand, these materials may be used as an effective adsorbent for the Cu2+ removal from sulfate bearing wastewater. The Cu2 + ions have been found to be attached on the surface of AAS by formation of stable hydrooxocomplexes that are sorbed on the adsorbent surface via hydroxyl groups in the form of posnjakite crystal phase.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, Septemb
T1  - New multifunctional materials based on steel slag
EP  - 123
SP  - 123
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3771
ER  - 

@conference{
author = "Milašević, Ivana and Ivanović, Ljubica and Nikolić, Irena and Đurović, Dijana and Marković, Smilja and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2018",
abstract = "Electric arc furnace slag (EAFS) is the by-product of steel production in an electric arc furnace. In a pass two decade a special attention is paid to the valorization of metallurgical slags by alkali activation. The process involves a chemical reaction of slag with the alkaline activator followed by the condensation and hardening processes. Aluminium-containing calcium silicate hydrate gel i.e. C–(A)–S–H gel with a low C/S ratio has been identified as a reaction product of slag alkali activation. We have synthesized the AAS using the EAFS as the precursor and Na2SiO3 solution as an activator. The AAS samples are characterized by XRD, SEM/EDS and FTIR analysis. Moreover, investigation of mechanical properties dilatometric and porosity analysis were performed as well so as to build up a detailed illustration of AAS properties and possible application of these materials. The results have shown that AAS may reach the compressive strength (~ 40 MPa) which enables its application in a civil engineering. Moreover, the AAS sample exhibits improved strength (~ 50 MPa) at elevated temperatures thus potential application of these materials in a high temperature conditions should be considered. On the other hand, these materials may be used as an effective adsorbent for the Cu2+ removal from sulfate bearing wastewater. The Cu2 + ions have been found to be attached on the surface of AAS by formation of stable hydrooxocomplexes that are sorbed on the adsorbent surface via hydroxyl groups in the form of posnjakite crystal phase.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, Septemb",
title = "New multifunctional materials based on steel slag",
pages = "123-123",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3771"
}

Milašević, I., Ivanović, L., Nikolić, I., Đurović, D., Marković, S., Radmilović, V.,& Radmilović, V. R.. (2018). New multifunctional materials based on steel slag. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, Septemb
Belgrade : Materials Research Society of Serbia., 123-123.
https://hdl.handle.net/21.15107/rcub_technorep_3771

Milašević I, Ivanović L, Nikolić I, Đurović D, Marković S, Radmilović V, Radmilović VR. New multifunctional materials based on steel slag. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, Septemb. 2018;:123-123.
https://hdl.handle.net/21.15107/rcub_technorep_3771 .

Milašević, Ivana, Ivanović, Ljubica, Nikolić, Irena, Đurović, Dijana, Marković, Smilja, Radmilović, Vuk, Radmilović, Velimir R., "New multifunctional materials based on steel slag" in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, Septemb (2018):123-123,
https://hdl.handle.net/21.15107/rcub_technorep_3771 .

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  - Nikolić, Irena
AU  - Tadić, Milena
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3939
AB  - The durability of alkali-activated steel electric arc furnace slag (EAFS) in a marine environment was evaluated with respect to the chemical composition of the alkaline activator. Two different alkaline activators have been used: a mixture of NaOH and Na2SiO3 solutions (Na-activator), as well as a mixture of KOH and K2SiO3 solutions (K-activator). The obtained results gave the insight into the influence of alkaline activator chemistry on the compressive strength and durability of alkali-activated slag (AAS), which was exposed to the damaging seawater environment. The porosity of AAS was found to be the most important factor with regards to the strength and durability of these materials in marine environment. Sodium based alkali-activated slag (Na-AAS) displayed lower porosity and higher compressive strength compared to potassium based AAS (K-AAS). Lower porosity and thus a lower rate of water uptake by AAS matrix, i.e., the lower sorptivity was exhibited by the Na-AAS when compared to K-AAS. Hence, Na-AAS exhibited better durability in a marine environment.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Durability of alkali activated slag in a marine environment: Influence of alkali ion
EP  - 1156
IS  - 10
SP  - 1143
VL  - 83
DO  - 10.2298/JSC180328057N
ER  - 

@article{
author = "Nikolić, Irena and Tadić, Milena and Janković-Častvan, Ivona and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2018",
abstract = "The durability of alkali-activated steel electric arc furnace slag (EAFS) in a marine environment was evaluated with respect to the chemical composition of the alkaline activator. Two different alkaline activators have been used: a mixture of NaOH and Na2SiO3 solutions (Na-activator), as well as a mixture of KOH and K2SiO3 solutions (K-activator). The obtained results gave the insight into the influence of alkaline activator chemistry on the compressive strength and durability of alkali-activated slag (AAS), which was exposed to the damaging seawater environment. The porosity of AAS was found to be the most important factor with regards to the strength and durability of these materials in marine environment. Sodium based alkali-activated slag (Na-AAS) displayed lower porosity and higher compressive strength compared to potassium based AAS (K-AAS). Lower porosity and thus a lower rate of water uptake by AAS matrix, i.e., the lower sorptivity was exhibited by the Na-AAS when compared to K-AAS. Hence, Na-AAS exhibited better durability in a marine environment.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Durability of alkali activated slag in a marine environment: Influence of alkali ion",
pages = "1156-1143",
number = "10",
volume = "83",
doi = "10.2298/JSC180328057N"
}

Nikolić, I., Tadić, M., Janković-Častvan, I., Radmilović, V.,& Radmilović, V. R.. (2018). Durability of alkali activated slag in a marine environment: Influence of alkali ion. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 83(10), 1143-1156.
https://doi.org/10.2298/JSC180328057N

Nikolić I, Tadić M, Janković-Častvan I, Radmilović V, Radmilović VR. Durability of alkali activated slag in a marine environment: Influence of alkali ion. in Journal of the Serbian Chemical Society. 2018;83(10):1143-1156.
doi:10.2298/JSC180328057N .

Nikolić, Irena, Tadić, Milena, Janković-Častvan, Ivona, Radmilović, Vuk, Radmilović, Velimir R., "Durability of alkali activated slag in a marine environment: Influence of alkali ion" in Journal of the Serbian Chemical Society, 83, no. 10 (2018):1143-1156,
https://doi.org/10.2298/JSC180328057N . .

TY  - CONF
AU  - Nikolić, Irena
AU  - Đurović, Dijana
AU  - Milašević, Ivana
AU  - Marković, Smilja
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3491
AB  - This study aims to understand the kinetic, thermodynamic and mechanism of Cu2+ adsorption onto unmodified electric arc furnace slag (EAFS) and alkali modified EAFS. The adsorption process was investigated via a batch reactor system. The modified EAFS sample has been prepared by reacting an EAFS powder with an aqueous alkali silicate solution. The both samples were characterized by SEM, XRD, FTIR and porosimetric measurements. The results have shown that alkali activation of EAFS favour adsorption process. The adsorption reaction on both adsorbents was found to be pseudo second order. Thermodynamic investigations have shown that adsorption process is spontaneous and endothermic. Mechanism of adsorption was investigated using the intraparticle diffusion and Boyd model which suggested that the both, film diffusion and diffusion within the pores of adsorbent controls the intraparticle diffusion of Cu2+ onto and EAFS and modified EAFS and was mainly due to external mass transport. Besides, FTIR spectroscopy determined the surface functional groups of the EAFS and modified EAFS which participate in Cu2+ bonding.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, Septem
T1  - The slag based adsorbents for Cu2+ removal from aquatic solutions
EP  - 58
SP  - 58
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3491
ER  - 

@conference{
author = "Nikolić, Irena and Đurović, Dijana and Milašević, Ivana and Marković, Smilja and Radmilović, Vuk and Radmilović, Velimir R.",
year = "2017",
abstract = "This study aims to understand the kinetic, thermodynamic and mechanism of Cu2+ adsorption onto unmodified electric arc furnace slag (EAFS) and alkali modified EAFS. The adsorption process was investigated via a batch reactor system. The modified EAFS sample has been prepared by reacting an EAFS powder with an aqueous alkali silicate solution. The both samples were characterized by SEM, XRD, FTIR and porosimetric measurements. The results have shown that alkali activation of EAFS favour adsorption process. The adsorption reaction on both adsorbents was found to be pseudo second order. Thermodynamic investigations have shown that adsorption process is spontaneous and endothermic. Mechanism of adsorption was investigated using the intraparticle diffusion and Boyd model which suggested that the both, film diffusion and diffusion within the pores of adsorbent controls the intraparticle diffusion of Cu2+ onto and EAFS and modified EAFS and was mainly due to external mass transport. Besides, FTIR spectroscopy determined the surface functional groups of the EAFS and modified EAFS which participate in Cu2+ bonding.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, Septem",
title = "The slag based adsorbents for Cu2+ removal from aquatic solutions",
pages = "58-58",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3491"
}

Nikolić, I., Đurović, D., Milašević, I., Marković, S., Radmilović, V.,& Radmilović, V. R.. (2017). The slag based adsorbents for Cu2+ removal from aquatic solutions. in Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, Septem
Belgrade : Materials Research Society of Serbia., 58-58.
https://hdl.handle.net/21.15107/rcub_technorep_3491

Nikolić I, Đurović D, Milašević I, Marković S, Radmilović V, Radmilović VR. The slag based adsorbents for Cu2+ removal from aquatic solutions. in Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, Septem. 2017;:58-58.
https://hdl.handle.net/21.15107/rcub_technorep_3491 .

Nikolić, Irena, Đurović, Dijana, Milašević, Ivana, Marković, Smilja, Radmilović, Vuk, Radmilović, Velimir R., "The slag based adsorbents for Cu2+ removal from aquatic solutions" in Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, Septem (2017):58-58,
https://hdl.handle.net/21.15107/rcub_technorep_3491 .

TY  - JOUR
AU  - Radmilović, Vuk
AU  - Carraro, Carlo
AU  - Uskoković, Petar
AU  - Radmilović, Velimir R.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3551
AB  - In this report, we demonstrate a simple fabrication route for polyvinyl butyral (PVB)-based nanocomposites with carbon nanotubes and graphene. In spite of insufficient percolation threshold due to low concentration of carbonaceous nanofillers, in the amount of 1 wt%, significant improvement of electrical and mechanical properties with negligible deterioration of optical properties for the polymer PVB matrix can be achieved. Both hardness and modulus increase and electrical resistivity and transmittance decrease in this order: PVB + multi-wall carbon nanotubes (MWCNT) double right arrow PVB+single-wall carbon nanotubes (SWCNT) double right arrow PVB + graphene. The largest values of reduced modulus and hardness are observed for the PVB + graphene nanocomposite, obtained by nanoindentation. Transmittance is similar to 84%, 86%, 89%, and 91% at 370 nm, and at 550 nm is similar to 84%, 88%, 90%, and 92%, for PVB + graphene, PVB+MWCNT, PVB + SWCNT, and pure PVB, respectively. The highest resistivity of 4 x 10(4) Omega cm is exhibited by the PVB + MWCNT nanocomposite while the lowest, 1.9 x 10(3) Omega cm, is exhibited by the PVB + graphene. Nanocomposite films are fabricated by a simple processing route using ultrasonic mixing and spin coating.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene
EP  - E497
SP  - E490
VL  - 38
DO  - 10.1002/pc.24079
ER  - 

@article{
author = "Radmilović, Vuk and Carraro, Carlo and Uskoković, Petar and Radmilović, Velimir R.",
year = "2017",
abstract = "In this report, we demonstrate a simple fabrication route for polyvinyl butyral (PVB)-based nanocomposites with carbon nanotubes and graphene. In spite of insufficient percolation threshold due to low concentration of carbonaceous nanofillers, in the amount of 1 wt%, significant improvement of electrical and mechanical properties with negligible deterioration of optical properties for the polymer PVB matrix can be achieved. Both hardness and modulus increase and electrical resistivity and transmittance decrease in this order: PVB + multi-wall carbon nanotubes (MWCNT) double right arrow PVB+single-wall carbon nanotubes (SWCNT) double right arrow PVB + graphene. The largest values of reduced modulus and hardness are observed for the PVB + graphene nanocomposite, obtained by nanoindentation. Transmittance is similar to 84%, 86%, 89%, and 91% at 370 nm, and at 550 nm is similar to 84%, 88%, 90%, and 92%, for PVB + graphene, PVB+MWCNT, PVB + SWCNT, and pure PVB, respectively. The highest resistivity of 4 x 10(4) Omega cm is exhibited by the PVB + MWCNT nanocomposite while the lowest, 1.9 x 10(3) Omega cm, is exhibited by the PVB + graphene. Nanocomposite films are fabricated by a simple processing route using ultrasonic mixing and spin coating.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene",
pages = "E497-E490",
volume = "38",
doi = "10.1002/pc.24079"
}

Radmilović, V., Carraro, C., Uskoković, P.,& Radmilović, V. R.. (2017). Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene. in Polymer Composites
Wiley, Hoboken., 38, E490-E497.
https://doi.org/10.1002/pc.24079

Radmilović V, Carraro C, Uskoković P, Radmilović VR. Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene. in Polymer Composites. 2017;38:E490-E497.
doi:10.1002/pc.24079 .

Radmilović, Vuk, Carraro, Carlo, Uskoković, Petar, Radmilović, Velimir R., "Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene" in Polymer Composites, 38 (2017):E490-E497,
https://doi.org/10.1002/pc.24079 . .

TY  - JOUR
AU  - Radmilović, Vuk
AU  - Goebelt, Manuela
AU  - Ophus, Colin
AU  - Christiansen, Silke
AU  - Spiecker, Erdmann
AU  - Radmilović, Velimir R.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3633
AB  - This article focuses on the microscopic mechanism of thermally induced nanoweld formation between silver nanowires (AgNWs) which is a key process for improving electrical conductivity in NW networks employed for transparent electrodes. Focused ion beam sectioning and transmission electron microscopy were applied in order to elucidate the atomic structure of a welded NW including measurement of the wetting contact angle and characterization of defect structure with atomic accuracy, which provides fundamental information on the welding mechanism. Crystal lattice strain, obtained by direct evaluation of atomic column displacements in high resolution scanning transmission electron microscopy images, was shown to be non-uniform among the five twin segments of the AgNW pentagonal structure. It was found that the pentagonal cross-sectional morphology of AgNWs has a dominant effect on the formation of nanowelds by controlling initial wetting as well as diffusion of Ag atoms between the NWs. Due to complete solid-state wetting, at an angle of similar to 4.8 degrees, the welding process starts with homoepitaxial nucleation of an initial Ag layer on (100) surface facets, considered to have an infinitely large radius of curvature. However, the strong driving force for this process due to the Gibbs-Thomson effect, requires the NW contact to occur through the corner of the pentagonal cross-section of the second NW providing a small radius of curvature. After the initial layer is formed, the welded zone continues to grow and extends out epitaxially to the neighboring twin segments.
PB  - IOP Publishing Ltd, Bristol
T2  - Nanotechnology
T1  - Low temperature solid-state wetting and formation of nanowelds in silver nanowires
IS  - 38
VL  - 28
DO  - 10.1088/1361-6528/aa7eb8
ER  - 

@article{
author = "Radmilović, Vuk and Goebelt, Manuela and Ophus, Colin and Christiansen, Silke and Spiecker, Erdmann and Radmilović, Velimir R.",
year = "2017",
abstract = "This article focuses on the microscopic mechanism of thermally induced nanoweld formation between silver nanowires (AgNWs) which is a key process for improving electrical conductivity in NW networks employed for transparent electrodes. Focused ion beam sectioning and transmission electron microscopy were applied in order to elucidate the atomic structure of a welded NW including measurement of the wetting contact angle and characterization of defect structure with atomic accuracy, which provides fundamental information on the welding mechanism. Crystal lattice strain, obtained by direct evaluation of atomic column displacements in high resolution scanning transmission electron microscopy images, was shown to be non-uniform among the five twin segments of the AgNW pentagonal structure. It was found that the pentagonal cross-sectional morphology of AgNWs has a dominant effect on the formation of nanowelds by controlling initial wetting as well as diffusion of Ag atoms between the NWs. Due to complete solid-state wetting, at an angle of similar to 4.8 degrees, the welding process starts with homoepitaxial nucleation of an initial Ag layer on (100) surface facets, considered to have an infinitely large radius of curvature. However, the strong driving force for this process due to the Gibbs-Thomson effect, requires the NW contact to occur through the corner of the pentagonal cross-section of the second NW providing a small radius of curvature. After the initial layer is formed, the welded zone continues to grow and extends out epitaxially to the neighboring twin segments.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Nanotechnology",
title = "Low temperature solid-state wetting and formation of nanowelds in silver nanowires",
number = "38",
volume = "28",
doi = "10.1088/1361-6528/aa7eb8"
}

Radmilović, V., Goebelt, M., Ophus, C., Christiansen, S., Spiecker, E.,& Radmilović, V. R.. (2017). Low temperature solid-state wetting and formation of nanowelds in silver nanowires. in Nanotechnology
IOP Publishing Ltd, Bristol., 28(38).
https://doi.org/10.1088/1361-6528/aa7eb8

Radmilović V, Goebelt M, Ophus C, Christiansen S, Spiecker E, Radmilović VR. Low temperature solid-state wetting and formation of nanowelds in silver nanowires. in Nanotechnology. 2017;28(38).
doi:10.1088/1361-6528/aa7eb8 .

Radmilović, Vuk, Goebelt, Manuela, Ophus, Colin, Christiansen, Silke, Spiecker, Erdmann, Radmilović, Velimir R., "Low temperature solid-state wetting and formation of nanowelds in silver nanowires" in Nanotechnology, 28, no. 38 (2017),
https://doi.org/10.1088/1361-6528/aa7eb8 . .