TY  - JOUR
AU  - Spasojević, Milica
AU  - Marković, Dušan
AU  - Spasojević, Miroslav
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5898
AB  - Mathematical model representing a catalytic effect
of a nanocrystal mixture of metallic platinum and
ruthenium dioxide for electrooxidation of methanol
is established. Dependance of a current density of
the methanol electrooxidation on the chemical
composition and size of nanocrystals is determined
in the model. A good agreement between theoretical
values and experimental results corroborates that
electrooxidation of methanol is guided by a
bifunctional mechanism. The model is based on the fact that the catalytic effect is proportional to the length of the contact border
between nanocrystals of metallic platinum and nanocrystals of ruthenium dioxide. Ru-OH particles are formed on the Ru atoms at the
border of crystal grains, at potentials more negative than on platinum. These species oxidize firmly bound intermediates COad located
on the adjacent Pt atoms and thus release the Pt atoms for adsorption and dehydrogenation of subsequent molecules of methanol.
T2  - Revue Roumaine de Chimie
T1  - Mathematical model of electrocatalysis of methanol oxidation at the mixture of nanocrystals of platinum and ruthenium dioxide
IS  - 67
SP  - 473
SP  - 482
DO  - 10.33224/rrch.2022.67.8-9.06
ER  - 

@article{
author = "Spasojević, Milica and Marković, Dušan and Spasojević, Miroslav",
year = "2022",
abstract = "Mathematical model representing a catalytic effect
of a nanocrystal mixture of metallic platinum and
ruthenium dioxide for electrooxidation of methanol
is established. Dependance of a current density of
the methanol electrooxidation on the chemical
composition and size of nanocrystals is determined
in the model. A good agreement between theoretical
values and experimental results corroborates that
electrooxidation of methanol is guided by a
bifunctional mechanism. The model is based on the fact that the catalytic effect is proportional to the length of the contact border
between nanocrystals of metallic platinum and nanocrystals of ruthenium dioxide. Ru-OH particles are formed on the Ru atoms at the
border of crystal grains, at potentials more negative than on platinum. These species oxidize firmly bound intermediates COad located
on the adjacent Pt atoms and thus release the Pt atoms for adsorption and dehydrogenation of subsequent molecules of methanol.",
journal = "Revue Roumaine de Chimie",
title = "Mathematical model of electrocatalysis of methanol oxidation at the mixture of nanocrystals of platinum and ruthenium dioxide",
number = "67",
pages = "473-482",
doi = "10.33224/rrch.2022.67.8-9.06"
}

Spasojević, M., Marković, D.,& Spasojević, M.. (2022). Mathematical model of electrocatalysis of methanol oxidation at the mixture of nanocrystals of platinum and ruthenium dioxide. in Revue Roumaine de Chimie(67), 473.
https://doi.org/10.33224/rrch.2022.67.8-9.06

Spasojević M, Marković D, Spasojević M. Mathematical model of electrocatalysis of methanol oxidation at the mixture of nanocrystals of platinum and ruthenium dioxide. in Revue Roumaine de Chimie. 2022;(67):473.
doi:10.33224/rrch.2022.67.8-9.06 .

Spasojević, Milica, Marković, Dušan, Spasojević, Miroslav, "Mathematical model of electrocatalysis of methanol oxidation at the mixture of nanocrystals of platinum and ruthenium dioxide" in Revue Roumaine de Chimie, no. 67 (2022):473,
https://doi.org/10.33224/rrch.2022.67.8-9.06 . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Luković, Milentije
AU  - Arnaut, Suzana
AU  - Maričić, Ema
AU  - Spasojević, Miroslav
PY  - 2022
UR  - https://www.sciencedirect.com/science/article/pii/S0254058422002930?via%3Dihub
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5140
AB  - A novel multiferroic composite material, composed of a mixture of nanocrystals of BaT1-xMexO3 and MeFe12O19 (Me = Zn and Mn) and an amorphous phases of BaTi1-xMexO3, MeFe12O19 and MeFe2O4, is synthetized. The composite material consisting of the mixture of nanocrystals of Fe2O3, ZnO and BaTiO3 embedded into the amorphous phase of MnCO3 is obtained by grinding the powder mixture of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3 for 20 min. The powders as-ground for 80 min and more are composed of the mixture of nanocrystals of Fe2O3 and BaTiO3 embedded in the amorphous phase of Fe2O3, ZnO, BaTiO3 and MnCO3. With increasing grinding time, formation of the composite with finer particles, a lower mean size of nanocrystals, higher content of the amorphous phase and higher magnetization is observed. The magnetization of the pressed samples increases with increasing grinding time. Grinding declines the amount of large weakly-ferromagnetic crystals of hematite, however it increases the quantity of paramagnetic small nanocrystals and the amorphous phase. The powder is thermostable up to 280 °C. Annealing above 280 °C results in the decrease in the magnetization of the cooled sample as a consequence of crystallization of the amorphous phase and enlargement of the size of nanocrystals. When sintering for 2 h at 1200 °C, the mixture of nanocrystals of BaTi1-xMexО3 and MeFe12O19 embedded into the amorphous matrix composed of BaTi1-xMexO3, MeFe12O19 and MeFe2О4 is formed. The sintered samples ground for longer periods of time are mainly composed of the amorphous phase and fine nanocrystals. Grinding of powders for less than 100 min results in the sintered samples with a granular structure, whereas the samples obtained from powders ground for more than 160 min are relatively compact. The magnetization of the sintered samples declines with increasing grinding time to 180 min due to transformation of nanocrystals into the amorphous phase. Further increase in grinding time from 180 to 240 min causes the increase in the magnetization, resulting from the effect of sintering. The magnetization of the sintered samples ground for more than 240 min declines with increasing grinding time, since the amount of the amorphous phase rapidly increases when grinding above 240 min. The samples sintered from the powders ground for 240 min show the compact structure and maximum magnetization.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - The properties of mechanically activated powders consisting of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3
VL  - 283
DO  - 10.1016/j.matchemphys.2022.125987
ER  - 

@article{
author = "Spasojević, Milica and Luković, Milentije and Arnaut, Suzana and Maričić, Ema and Spasojević, Miroslav",
year = "2022",
abstract = "A novel multiferroic composite material, composed of a mixture of nanocrystals of BaT1-xMexO3 and MeFe12O19 (Me = Zn and Mn) and an amorphous phases of BaTi1-xMexO3, MeFe12O19 and MeFe2O4, is synthetized. The composite material consisting of the mixture of nanocrystals of Fe2O3, ZnO and BaTiO3 embedded into the amorphous phase of MnCO3 is obtained by grinding the powder mixture of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3 for 20 min. The powders as-ground for 80 min and more are composed of the mixture of nanocrystals of Fe2O3 and BaTiO3 embedded in the amorphous phase of Fe2O3, ZnO, BaTiO3 and MnCO3. With increasing grinding time, formation of the composite with finer particles, a lower mean size of nanocrystals, higher content of the amorphous phase and higher magnetization is observed. The magnetization of the pressed samples increases with increasing grinding time. Grinding declines the amount of large weakly-ferromagnetic crystals of hematite, however it increases the quantity of paramagnetic small nanocrystals and the amorphous phase. The powder is thermostable up to 280 °C. Annealing above 280 °C results in the decrease in the magnetization of the cooled sample as a consequence of crystallization of the amorphous phase and enlargement of the size of nanocrystals. When sintering for 2 h at 1200 °C, the mixture of nanocrystals of BaTi1-xMexО3 and MeFe12O19 embedded into the amorphous matrix composed of BaTi1-xMexO3, MeFe12O19 and MeFe2О4 is formed. The sintered samples ground for longer periods of time are mainly composed of the amorphous phase and fine nanocrystals. Grinding of powders for less than 100 min results in the sintered samples with a granular structure, whereas the samples obtained from powders ground for more than 160 min are relatively compact. The magnetization of the sintered samples declines with increasing grinding time to 180 min due to transformation of nanocrystals into the amorphous phase. Further increase in grinding time from 180 to 240 min causes the increase in the magnetization, resulting from the effect of sintering. The magnetization of the sintered samples ground for more than 240 min declines with increasing grinding time, since the amount of the amorphous phase rapidly increases when grinding above 240 min. The samples sintered from the powders ground for 240 min show the compact structure and maximum magnetization.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "The properties of mechanically activated powders consisting of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3",
volume = "283",
doi = "10.1016/j.matchemphys.2022.125987"
}

Spasojević, M., Luković, M., Arnaut, S., Maričić, E.,& Spasojević, M.. (2022). The properties of mechanically activated powders consisting of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3. in Materials Chemistry and Physics
Elsevier., 283.
https://doi.org/10.1016/j.matchemphys.2022.125987

Spasojević M, Luković M, Arnaut S, Maričić E, Spasojević M. The properties of mechanically activated powders consisting of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3. in Materials Chemistry and Physics. 2022;283.
doi:10.1016/j.matchemphys.2022.125987 .

Spasojević, Milica, Luković, Milentije, Arnaut, Suzana, Maričić, Ema, Spasojević, Miroslav, "The properties of mechanically activated powders consisting of 17.0 wt% Fe2O3, 4.4 wt% MnCO3, 3.6 wt% ZnO and 75.0 wt% BaTiO3" in Materials Chemistry and Physics, 283 (2022),
https://doi.org/10.1016/j.matchemphys.2022.125987 . .

TY  - JOUR
AU  - Lukić, Vladimir D.
AU  - Spasojević, Milica 
AU  - Luković, Milentije
AU  - Spasojević, Miroslav
AU  - Maričić, Aleksa
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5621
AB  - Kinetics and mechanism of hydrogen adsorption in as-obtained and ground nuclear graphite
Wendelstein 7-X are examined. In the first time interval the adsorption process is determined
by dissociation of the hydrogen molecule, occurring at the outer surface and in open
micropores of nuclear graphite particles. However, in the second time interval, the slowest
step in the hydrogen adsorption is inter-granular and inter-crystallite diffusion in nanopores
of graphite. The X-ray analysis shows, that grinding of as-obtained nuclear graphite results in
finer particles with finer nanocrystals and larger density of opened pores and carbon reactive
sites. The capacity and rate of adsorption increase with comminution of nuclear graphite particles and adsorbed hydrogen does not sub stantially alter the microstructure of nuclear
graphite.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
T2  - Nuclear Technology and Radiation Protection
T1  - Hydrogen Adsorption Process In Nanocrystalline Nuclear Graphite
VL  - 37
IS  - 1
SP  - 11
EP  - 17
DO  - 10.2298/NTRP2201011L
ER  - 

@article{
author = "Lukić, Vladimir D. and Spasojević, Milica  and Luković, Milentije and Spasojević, Miroslav and Maričić, Aleksa",
year = "2022",
abstract = "Kinetics and mechanism of hydrogen adsorption in as-obtained and ground nuclear graphite
Wendelstein 7-X are examined. In the first time interval the adsorption process is determined
by dissociation of the hydrogen molecule, occurring at the outer surface and in open
micropores of nuclear graphite particles. However, in the second time interval, the slowest
step in the hydrogen adsorption is inter-granular and inter-crystallite diffusion in nanopores
of graphite. The X-ray analysis shows, that grinding of as-obtained nuclear graphite results in
finer particles with finer nanocrystals and larger density of opened pores and carbon reactive
sites. The capacity and rate of adsorption increase with comminution of nuclear graphite particles and adsorbed hydrogen does not sub stantially alter the microstructure of nuclear
graphite.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "Nuclear Technology and Radiation Protection",
title = "Hydrogen Adsorption Process In Nanocrystalline Nuclear Graphite",
volume = "37",
number = "1",
pages = "11-17",
doi = "10.2298/NTRP2201011L"
}

Lukić, V. D., Spasojević, M., Luković, M., Spasojević, M.,& Maričić, A.. (2022). Hydrogen Adsorption Process In Nanocrystalline Nuclear Graphite. in Nuclear Technology and Radiation Protection
Belgrade : Vinča Institute of Nuclear Sciences., 37(1), 11-17.
https://doi.org/10.2298/NTRP2201011L

Lukić VD, Spasojević M, Luković M, Spasojević M, Maričić A. Hydrogen Adsorption Process In Nanocrystalline Nuclear Graphite. in Nuclear Technology and Radiation Protection. 2022;37(1):11-17.
doi:10.2298/NTRP2201011L .

Lukić, Vladimir D., Spasojević, Milica , Luković, Milentije, Spasojević, Miroslav, Maričić, Aleksa, "Hydrogen Adsorption Process In Nanocrystalline Nuclear Graphite" in Nuclear Technology and Radiation Protection, 37, no. 1 (2022):11-17,
https://doi.org/10.2298/NTRP2201011L . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Ribić-Zelenović, Lenka
AU  - Spasojević, Miroslav
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4529
AB  - The catalyst composed of a mixture of nanocrystals of metallic Pt and rutile RuO2 was prepared by a thermal procedure on a titanium substrate. An effect of the mixture composition on its microstructure, surface properties, and catalytic activity for an electrooxidation of 1-propanol in an alkaline environment was examined. The relation between the microstructure of the Pt/RuO2 catalyst and its catalytic activity was determined. It was found that the increase in the RuO2 content resulted in the increase in the catalytic activity, which reached its maximum value and then decreased. The catalytic effect was caused by the bifunctional mechanism of the catalyst Pt/RuO2. Ru-OH species were formed on Ru atoms of RuO2 nanocrystals at more negative potentials than on Pt. These oxy species oxidized firmly adsorbed intermediates propionyl, COad, C2Hyad, and CHad and, thus, released Pt atoms for the adsorption and dehydrogenation of the subsequent molecules of 1-propanol.
PB  - Springer Link
T2  - Monatshefte für Chemie - Chemical Monthly
T1  - Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2
VL  - 152
IS  - 5
SP  - 489
EP  - 496
DO  - 10.1007/s00706-021-02769-9
ER  - 

@article{
author = "Spasojević, Milica and Ribić-Zelenović, Lenka and Spasojević, Miroslav",
year = "2021",
abstract = "The catalyst composed of a mixture of nanocrystals of metallic Pt and rutile RuO2 was prepared by a thermal procedure on a titanium substrate. An effect of the mixture composition on its microstructure, surface properties, and catalytic activity for an electrooxidation of 1-propanol in an alkaline environment was examined. The relation between the microstructure of the Pt/RuO2 catalyst and its catalytic activity was determined. It was found that the increase in the RuO2 content resulted in the increase in the catalytic activity, which reached its maximum value and then decreased. The catalytic effect was caused by the bifunctional mechanism of the catalyst Pt/RuO2. Ru-OH species were formed on Ru atoms of RuO2 nanocrystals at more negative potentials than on Pt. These oxy species oxidized firmly adsorbed intermediates propionyl, COad, C2Hyad, and CHad and, thus, released Pt atoms for the adsorption and dehydrogenation of the subsequent molecules of 1-propanol.",
publisher = "Springer Link",
journal = "Monatshefte für Chemie - Chemical Monthly",
title = "Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2",
volume = "152",
number = "5",
pages = "489-496",
doi = "10.1007/s00706-021-02769-9"
}

Spasojević, M., Ribić-Zelenović, L.,& Spasojević, M.. (2021). Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2. in Monatshefte für Chemie - Chemical Monthly
Springer Link., 152(5), 489-496.
https://doi.org/10.1007/s00706-021-02769-9

Spasojević M, Ribić-Zelenović L, Spasojević M. Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2. in Monatshefte für Chemie - Chemical Monthly. 2021;152(5):489-496.
doi:10.1007/s00706-021-02769-9 .

Spasojević, Milica, Ribić-Zelenović, Lenka, Spasojević, Miroslav, "Electrooxidation of 1-propanol on the mixture of nanoparticles of Pt and RuO2" in Monatshefte für Chemie - Chemical Monthly, 152, no. 5 (2021):489-496,
https://doi.org/10.1007/s00706-021-02769-9 . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Ribić-Zelenović, Lenka
AU  - Spasojević, Miroslav
AU  - Marković, Dušan
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4742
AB  - A catalytic coating, composed of a mixture of nanocrystals of Pt and RuO2, used for oxidation of CH3OH, was formed by the thermal procedure. The size of the RuO2 nanocrystals was increasing and of Pt was decreasing with increasing the content of RuO2. The optimal coating composition depended on potential. At more positive potentials, the optimal coatings contained lower amounts of RuO2. The oxidation reaction of CH3OH on the coatings with the RuO2 content higher than optimal, was determined by dehydrogenization of CH3OH. At lower amounts of RuO2, oxidation of CH3OH was determined by the oxidation reaction of intermediates COad with oxy species of ruthenium. The catalytic effect was caused by a bifunctional mechanism. The bifunctional mechanism is based on the fact that oxy species were formed on Ru at more negative potentials than on Pt. These oxy species oxidized COad intermediates, bound to adjacent Pt atoms and thus discharged them for dehydrogenation of the subsequent CH3OH molecules.
PB  - Springer
T2  - Russian Journal of Electrochemistry
T1  - Methanol Electrooxidation on Pt/RuO2 Catalyst
VL  - 57
IS  - 7
SP  - 795
EP  - 807
DO  - 10.1134/S1023193520120253
ER  - 

@article{
author = "Spasojević, Milica and Ribić-Zelenović, Lenka and Spasojević, Miroslav and Marković, Dušan",
year = "2021",
abstract = "A catalytic coating, composed of a mixture of nanocrystals of Pt and RuO2, used for oxidation of CH3OH, was formed by the thermal procedure. The size of the RuO2 nanocrystals was increasing and of Pt was decreasing with increasing the content of RuO2. The optimal coating composition depended on potential. At more positive potentials, the optimal coatings contained lower amounts of RuO2. The oxidation reaction of CH3OH on the coatings with the RuO2 content higher than optimal, was determined by dehydrogenization of CH3OH. At lower amounts of RuO2, oxidation of CH3OH was determined by the oxidation reaction of intermediates COad with oxy species of ruthenium. The catalytic effect was caused by a bifunctional mechanism. The bifunctional mechanism is based on the fact that oxy species were formed on Ru at more negative potentials than on Pt. These oxy species oxidized COad intermediates, bound to adjacent Pt atoms and thus discharged them for dehydrogenation of the subsequent CH3OH molecules.",
publisher = "Springer",
journal = "Russian Journal of Electrochemistry",
title = "Methanol Electrooxidation on Pt/RuO2 Catalyst",
volume = "57",
number = "7",
pages = "795-807",
doi = "10.1134/S1023193520120253"
}

Spasojević, M., Ribić-Zelenović, L., Spasojević, M.,& Marković, D.. (2021). Methanol Electrooxidation on Pt/RuO2 Catalyst. in Russian Journal of Electrochemistry
Springer., 57(7), 795-807.
https://doi.org/10.1134/S1023193520120253

Spasojević M, Ribić-Zelenović L, Spasojević M, Marković D. Methanol Electrooxidation on Pt/RuO2 Catalyst. in Russian Journal of Electrochemistry. 2021;57(7):795-807.
doi:10.1134/S1023193520120253 .

Spasojević, Milica, Ribić-Zelenović, Lenka, Spasojević, Miroslav, Marković, Dušan, "Methanol Electrooxidation on Pt/RuO2 Catalyst" in Russian Journal of Electrochemistry, 57, no. 7 (2021):795-807,
https://doi.org/10.1134/S1023193520120253 . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Spasojević, Miroslav
AU  - Ribić-Zelenović, Lenka
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3822
AB  - Thermally prepared catalytic coatings on a titanium substrate were composed of a mixture of nanocrystals of metallic Pt and RuO2 of rutile structure and used for electrooxidation of formaldehyde. The size of the RuO2 nanocrystals increased, whereas those of Pt decreased with increasing the content of RuO2 in the mixture. At more positive potentials, the maximum catalytic activities showed the coatings with lower content of RuO2. Mechanism of formaldehyde oxidation was derived to show two reaction pathways. In the first one, H2C(OH)2 was directly oxidized to CO2, whereas COad was formed in the latter. COad is strongly adsorbed on Pt atoms, which causes blocking of these atoms and thus, preventing direct dehydrogenation of H2C(OH)2 to CO2. The overall catalytic effect of the mixture of nanocrystals was caused by the bifunctional mechanism. Thus, the Ru atoms formed the oxy species at more negative potentials than Pt. These oxy species oxidized the COad intermediates, bound to adjacent Pt atoms and accordingly, discharged them for dehydrogenation of new molecules of H2C(OH)2.
PB  - Springer
T2  - Monatshefte fur Chemie
T1  - A catalyst coated electrode for electrochemical formaldehyde oxidation
VL  - 151
IS  - 1
SP  - 33
EP  - 43
DO  - 10.1007/s00706-019-02533-0
ER  - 

@article{
author = "Spasojević, Milica and Spasojević, Miroslav and Ribić-Zelenović, Lenka",
year = "2020",
abstract = "Thermally prepared catalytic coatings on a titanium substrate were composed of a mixture of nanocrystals of metallic Pt and RuO2 of rutile structure and used for electrooxidation of formaldehyde. The size of the RuO2 nanocrystals increased, whereas those of Pt decreased with increasing the content of RuO2 in the mixture. At more positive potentials, the maximum catalytic activities showed the coatings with lower content of RuO2. Mechanism of formaldehyde oxidation was derived to show two reaction pathways. In the first one, H2C(OH)2 was directly oxidized to CO2, whereas COad was formed in the latter. COad is strongly adsorbed on Pt atoms, which causes blocking of these atoms and thus, preventing direct dehydrogenation of H2C(OH)2 to CO2. The overall catalytic effect of the mixture of nanocrystals was caused by the bifunctional mechanism. Thus, the Ru atoms formed the oxy species at more negative potentials than Pt. These oxy species oxidized the COad intermediates, bound to adjacent Pt atoms and accordingly, discharged them for dehydrogenation of new molecules of H2C(OH)2.",
publisher = "Springer",
journal = "Monatshefte fur Chemie",
title = "A catalyst coated electrode for electrochemical formaldehyde oxidation",
volume = "151",
number = "1",
pages = "33-43",
doi = "10.1007/s00706-019-02533-0"
}

Spasojević, M., Spasojević, M.,& Ribić-Zelenović, L.. (2020). A catalyst coated electrode for electrochemical formaldehyde oxidation. in Monatshefte fur Chemie
Springer., 151(1), 33-43.
https://doi.org/10.1007/s00706-019-02533-0

Spasojević M, Spasojević M, Ribić-Zelenović L. A catalyst coated electrode for electrochemical formaldehyde oxidation. in Monatshefte fur Chemie. 2020;151(1):33-43.
doi:10.1007/s00706-019-02533-0 .

Spasojević, Milica, Spasojević, Miroslav, Ribić-Zelenović, Lenka, "A catalyst coated electrode for electrochemical formaldehyde oxidation" in Monatshefte fur Chemie, 151, no. 1 (2020):33-43,
https://doi.org/10.1007/s00706-019-02533-0 . .

TY  - JOUR
AU  - Spasojević, Miroslav
AU  - Ranđić, Siniša
AU  - Maričić, Aleksa
AU  - Trišović, Tomislav
AU  - Spasojević, Milica
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4044
AB  - Nanostructured Ni-Fe-W-Cu alloy powders were electrodeposited from an alkaline ammonium citrate solution on a titanium cathode. Powder particles were dendrite- and cauliflower-shaped. The dendritic particles had a high density of branches made up of interconnected globules. XRD analysis showed that the powder contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. As the deposition current density increased, the mean nanocrystal size decreased, and the mean value of internal microstrain and the total weight percent of Fe and Ni in the alloy increased. The powders deposited at higher current densities exhibited higher magnetization. During annealing at temperatures up to 460 °C, the powders underwent short-range ordering, which caused an increase in magnetization, whereas at temperatures above 460 °C, the magnetization decreased due to the formation of large FCC crystalline grains.
PB  - Springer
T2  - Science of Sintering
T1  - Morphological, microstructural and magnetic characteristics of electrodeposited Ni-Fe-W-Cu alloy powders
VL  - 52
IS  - 1
SP  - 109
EP  - 121
DO  - 10.2298/SOS2001109S
ER  - 

@article{
author = "Spasojević, Miroslav and Ranđić, Siniša and Maričić, Aleksa and Trišović, Tomislav and Spasojević, Milica",
year = "2020",
abstract = "Nanostructured Ni-Fe-W-Cu alloy powders were electrodeposited from an alkaline ammonium citrate solution on a titanium cathode. Powder particles were dendrite- and cauliflower-shaped. The dendritic particles had a high density of branches made up of interconnected globules. XRD analysis showed that the powder contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. As the deposition current density increased, the mean nanocrystal size decreased, and the mean value of internal microstrain and the total weight percent of Fe and Ni in the alloy increased. The powders deposited at higher current densities exhibited higher magnetization. During annealing at temperatures up to 460 °C, the powders underwent short-range ordering, which caused an increase in magnetization, whereas at temperatures above 460 °C, the magnetization decreased due to the formation of large FCC crystalline grains.",
publisher = "Springer",
journal = "Science of Sintering",
title = "Morphological, microstructural and magnetic characteristics of electrodeposited Ni-Fe-W-Cu alloy powders",
volume = "52",
number = "1",
pages = "109-121",
doi = "10.2298/SOS2001109S"
}

Spasojević, M., Ranđić, S., Maričić, A., Trišović, T.,& Spasojević, M.. (2020). Morphological, microstructural and magnetic characteristics of electrodeposited Ni-Fe-W-Cu alloy powders. in Science of Sintering
Springer., 52(1), 109-121.
https://doi.org/10.2298/SOS2001109S

Spasojević M, Ranđić S, Maričić A, Trišović T, Spasojević M. Morphological, microstructural and magnetic characteristics of electrodeposited Ni-Fe-W-Cu alloy powders. in Science of Sintering. 2020;52(1):109-121.
doi:10.2298/SOS2001109S .

Spasojević, Miroslav, Ranđić, Siniša, Maričić, Aleksa, Trišović, Tomislav, Spasojević, Milica, "Morphological, microstructural and magnetic characteristics of electrodeposited Ni-Fe-W-Cu alloy powders" in Science of Sintering, 52, no. 1 (2020):109-121,
https://doi.org/10.2298/SOS2001109S . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Plazinić, Milan
AU  - Luković, Milentije
AU  - Maričić, Aleksa
AU  - Spasojević, Miroslav
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4256
AB  - A nanostructured powder of the Ni86,0Fe9,8W1,3Cu2,9 alloy is deposited on a titanium cathode by electrodeposition from the citrate bath, at the current density of 400 mA cm−2. The powder particles are of a cauliflower and dendritic shape and composed of nanocrystals of the FCC phase of the solid solution of iron, tungsten and copper in nickel, captive in an amorphous matrix. The freshly deposited powder is thermally stable up to 160 °C. The annealing of the powder in the temperature range from 160 °C to 460 °C results in its structure relaxation. At temperatures higher than 460 °C, the amorphous phase in the powder is crystalizing and crystal grains of the FCC solid solution are growing. The structural changes caused by annealing, affect magnetic properties of the alloy. The cooled powders after the structure relaxation have higher magnetization, a lower loss of the active power and a lower coercive field. Crystallization of the amorphous phase and crystalline grain growth of the FCC phase causes a decrease in magnetization, an increase in the power loss and the power of coercive field.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - The effect of annealing and frequency of the external magnetic field on magnetic properties of nanostructured electrodeposit of the Ni86,0Fe9,8W1,3Cu2,9 alloy
VL  - 254
DO  - 10.1016/j.matchemphys.2020.123513
ER  - 

@article{
author = "Spasojević, Milica and Plazinić, Milan and Luković, Milentije and Maričić, Aleksa and Spasojević, Miroslav",
year = "2020",
abstract = "A nanostructured powder of the Ni86,0Fe9,8W1,3Cu2,9 alloy is deposited on a titanium cathode by electrodeposition from the citrate bath, at the current density of 400 mA cm−2. The powder particles are of a cauliflower and dendritic shape and composed of nanocrystals of the FCC phase of the solid solution of iron, tungsten and copper in nickel, captive in an amorphous matrix. The freshly deposited powder is thermally stable up to 160 °C. The annealing of the powder in the temperature range from 160 °C to 460 °C results in its structure relaxation. At temperatures higher than 460 °C, the amorphous phase in the powder is crystalizing and crystal grains of the FCC solid solution are growing. The structural changes caused by annealing, affect magnetic properties of the alloy. The cooled powders after the structure relaxation have higher magnetization, a lower loss of the active power and a lower coercive field. Crystallization of the amorphous phase and crystalline grain growth of the FCC phase causes a decrease in magnetization, an increase in the power loss and the power of coercive field.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "The effect of annealing and frequency of the external magnetic field on magnetic properties of nanostructured electrodeposit of the Ni86,0Fe9,8W1,3Cu2,9 alloy",
volume = "254",
doi = "10.1016/j.matchemphys.2020.123513"
}

Spasojević, M., Plazinić, M., Luković, M., Maričić, A.,& Spasojević, M.. (2020). The effect of annealing and frequency of the external magnetic field on magnetic properties of nanostructured electrodeposit of the Ni86,0Fe9,8W1,3Cu2,9 alloy. in Materials Chemistry and Physics
Elsevier., 254.
https://doi.org/10.1016/j.matchemphys.2020.123513

Spasojević M, Plazinić M, Luković M, Maričić A, Spasojević M. The effect of annealing and frequency of the external magnetic field on magnetic properties of nanostructured electrodeposit of the Ni86,0Fe9,8W1,3Cu2,9 alloy. in Materials Chemistry and Physics. 2020;254.
doi:10.1016/j.matchemphys.2020.123513 .

Spasojević, Milica, Plazinić, Milan, Luković, Milentije, Maričić, Aleksa, Spasojević, Miroslav, "The effect of annealing and frequency of the external magnetic field on magnetic properties of nanostructured electrodeposit of the Ni86,0Fe9,8W1,3Cu2,9 alloy" in Materials Chemistry and Physics, 254 (2020),
https://doi.org/10.1016/j.matchemphys.2020.123513 . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Ribić-Zelenović, Lenka
AU  - Spasojević, Miroslav
AU  - Trišović, Tomislav
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4273
AB  - A catalytic coating composed of a mixture of RuO2 and Pt
nanocrystals was prepared by a thermal procedure on a titanium
substrate and used for the electrochemical oxidation of methanol.
The adsorption of the intermediate CO, formed by methanol
oxidation on Pt nanocrystals, depended on potential and the
coating composition. An increase in the RuO2 content decreased
the rate of methanol dehydrogenation and increased the rate of
oxidation of the strongly bound intermediate COad. This caused a
decrease in the maximum coverage of Pt nanocrystals with COad
and a shift of the rapid linear drop in COad coverage to more
negative potentials.
PB  - Academia Romana
T2  - Revue Roumaine de Chimie
T1  - The effect of the composition of the alloy of ruo2 and pt nanocrystals on intermediate adsorption during methanol oxidation
VL  - 65
IS  - 5
SP  - 481
EP  - 489
DO  - 10.33224/rrch.2020.65.5.08
ER  - 

@article{
author = "Spasojević, Milica and Ribić-Zelenović, Lenka and Spasojević, Miroslav and Trišović, Tomislav",
year = "2020",
abstract = "A catalytic coating composed of a mixture of RuO2 and Pt
nanocrystals was prepared by a thermal procedure on a titanium
substrate and used for the electrochemical oxidation of methanol.
The adsorption of the intermediate CO, formed by methanol
oxidation on Pt nanocrystals, depended on potential and the
coating composition. An increase in the RuO2 content decreased
the rate of methanol dehydrogenation and increased the rate of
oxidation of the strongly bound intermediate COad. This caused a
decrease in the maximum coverage of Pt nanocrystals with COad
and a shift of the rapid linear drop in COad coverage to more
negative potentials.",
publisher = "Academia Romana",
journal = "Revue Roumaine de Chimie",
title = "The effect of the composition of the alloy of ruo2 and pt nanocrystals on intermediate adsorption during methanol oxidation",
volume = "65",
number = "5",
pages = "481-489",
doi = "10.33224/rrch.2020.65.5.08"
}

Spasojević, M., Ribić-Zelenović, L., Spasojević, M.,& Trišović, T.. (2020). The effect of the composition of the alloy of ruo2 and pt nanocrystals on intermediate adsorption during methanol oxidation. in Revue Roumaine de Chimie
Academia Romana., 65(5), 481-489.
https://doi.org/10.33224/rrch.2020.65.5.08

Spasojević M, Ribić-Zelenović L, Spasojević M, Trišović T. The effect of the composition of the alloy of ruo2 and pt nanocrystals on intermediate adsorption during methanol oxidation. in Revue Roumaine de Chimie. 2020;65(5):481-489.
doi:10.33224/rrch.2020.65.5.08 .

Spasojević, Milica, Ribić-Zelenović, Lenka, Spasojević, Miroslav, Trišović, Tomislav, "The effect of the composition of the alloy of ruo2 and pt nanocrystals on intermediate adsorption during methanol oxidation" in Revue Roumaine de Chimie, 65, no. 5 (2020):481-489,
https://doi.org/10.33224/rrch.2020.65.5.08 . .

TY  - JOUR
AU  - Spasojević, Milica
AU  - Marković, Dušan
AU  - Spasojević, Miroslav
AU  - Vuković, Zoran
AU  - Maričić, Aleksa
AU  - Ribić-Zelenović, Lenka
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3325
AB  - Ni-Fe-W-Cu alloy powders were obtained by electrodeposition from an ammonium citrate bath at current densities ranging between 70 and 600 mA cm-2. As the deposition current density increased, the contents of Fe and W in the alloy increased, and those of Ni and Cu decreased. The total cathodic polarization curve was recorded, and partial polarization curves for Ni, Fe and W deposition and hydrogen evolution were determined. The current efficiency of alloy deposition was measured. The powders contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. At high current densities, small-sized nanocrystals exhibiting high internal microstrain values were formed. Powder particles were dendrite-and cauliflower-shaped. The dendrites had a large number of secondary branches and higher-order branches containing interconnected globules. The density of branches was higher in particles formed at high current densities. The powders formed at high current densities exhibited higher magnetization. Annealing at temperatures up to 460 °C resulted in structural relaxation, accompanied by an increase in magnetization. At temperatures above 460 °C, amorphous matrix crystallization and FCC crystal growth took place, accompanied by a decrease in magnetization.
T2  - Science of Sintering
T1  - Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys
VL  - 51
IS  - 2
SP  - 1
EP  - 13
DO  - 10.2298/SOS1902209S
ER  - 

@article{
author = "Spasojević, Milica and Marković, Dušan and Spasojević, Miroslav and Vuković, Zoran and Maričić, Aleksa and Ribić-Zelenović, Lenka",
year = "2019",
abstract = "Ni-Fe-W-Cu alloy powders were obtained by electrodeposition from an ammonium citrate bath at current densities ranging between 70 and 600 mA cm-2. As the deposition current density increased, the contents of Fe and W in the alloy increased, and those of Ni and Cu decreased. The total cathodic polarization curve was recorded, and partial polarization curves for Ni, Fe and W deposition and hydrogen evolution were determined. The current efficiency of alloy deposition was measured. The powders contained an amorphous matrix and FCC nanocrystals of the solid solution of Fe, W and Cu in Ni. At high current densities, small-sized nanocrystals exhibiting high internal microstrain values were formed. Powder particles were dendrite-and cauliflower-shaped. The dendrites had a large number of secondary branches and higher-order branches containing interconnected globules. The density of branches was higher in particles formed at high current densities. The powders formed at high current densities exhibited higher magnetization. Annealing at temperatures up to 460 °C resulted in structural relaxation, accompanied by an increase in magnetization. At temperatures above 460 °C, amorphous matrix crystallization and FCC crystal growth took place, accompanied by a decrease in magnetization.",
journal = "Science of Sintering",
title = "Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys",
volume = "51",
number = "2",
pages = "1-13",
doi = "10.2298/SOS1902209S"
}

Spasojević, M., Marković, D., Spasojević, M., Vuković, Z., Maričić, A.,& Ribić-Zelenović, L.. (2019). Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys. in Science of Sintering, 51(2), 1-13.
https://doi.org/10.2298/SOS1902209S

Spasojević M, Marković D, Spasojević M, Vuković Z, Maričić A, Ribić-Zelenović L. Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys. in Science of Sintering. 2019;51(2):1-13.
doi:10.2298/SOS1902209S .

Spasojević, Milica, Marković, Dušan, Spasojević, Miroslav, Vuković, Zoran, Maričić, Aleksa, Ribić-Zelenović, Lenka, "Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured ni-fe-w-cu alloys" in Science of Sintering, 51, no. 2 (2019):1-13,
https://doi.org/10.2298/SOS1902209S . .

TY  - JOUR
AU  - Spasojević, Miroslav
AU  - Marković, Dušan
AU  - Trišović, Tomislav Lj.
AU  - Spasojević, Milica
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2137
AB  - The effect of chromium(VI) on the kinetics of disproportionation of hypochlorous acid and hypochlorite was established in the solution for the electrolytic production of chlorate. The hexavalent chromium species Cr2O72-, HCrO4- and CrO42- present in the solution catalyze the disproportionation reaction. In both the absence and presence of chromium(VI), disproportionation is a third-order reaction with respect to HClO and ClO-, and a first-order reaction with respect to the hexavalent chromium species. In the presence of chromium(VI) ions, four parallel reactions probably take place in the solution i.e. uncatalyzed disproportionation and three parallel reactions catalyzed by Cr2O72-, HCrO4- and CrO42- ions. Most likely, the hexavalent chromium species do not change the sequence of elementary reactions in the disproportionation mechanism but only speed up the rate-determining step through interaction with its reactants. In the chlorate production process, as chromium(VI) concentration increases, the optimum pH which ensures the maximum rate of disproportionation is shifted to an acid environment. This is due to an increase in the concentration of the catalytically most active species HCrO4-with increasing acidity of the solution. A mathematical model of the kinetics of the chromium(VI)-catalyzed disproportionation of hypochlorite and hypochlorous acid into chlorate was set up. Good agreement was obtained between theoretical and experimental data. (c) 2018 The Electrochemical Society.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Mathematical Model of the Catalytic Effect of Chromium(VI) on Hypochlorite Disproportionation in Chlorate Electrolysis
VL  - 165
IS  - 2
DO  - 10.1149/2.0291802jes
ER  - 

@article{
author = "Spasojević, Miroslav and Marković, Dušan and Trišović, Tomislav Lj. and Spasojević, Milica",
year = "2018",
abstract = "The effect of chromium(VI) on the kinetics of disproportionation of hypochlorous acid and hypochlorite was established in the solution for the electrolytic production of chlorate. The hexavalent chromium species Cr2O72-, HCrO4- and CrO42- present in the solution catalyze the disproportionation reaction. In both the absence and presence of chromium(VI), disproportionation is a third-order reaction with respect to HClO and ClO-, and a first-order reaction with respect to the hexavalent chromium species. In the presence of chromium(VI) ions, four parallel reactions probably take place in the solution i.e. uncatalyzed disproportionation and three parallel reactions catalyzed by Cr2O72-, HCrO4- and CrO42- ions. Most likely, the hexavalent chromium species do not change the sequence of elementary reactions in the disproportionation mechanism but only speed up the rate-determining step through interaction with its reactants. In the chlorate production process, as chromium(VI) concentration increases, the optimum pH which ensures the maximum rate of disproportionation is shifted to an acid environment. This is due to an increase in the concentration of the catalytically most active species HCrO4-with increasing acidity of the solution. A mathematical model of the kinetics of the chromium(VI)-catalyzed disproportionation of hypochlorite and hypochlorous acid into chlorate was set up. Good agreement was obtained between theoretical and experimental data. (c) 2018 The Electrochemical Society.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Mathematical Model of the Catalytic Effect of Chromium(VI) on Hypochlorite Disproportionation in Chlorate Electrolysis",
volume = "165",
number = "2",
doi = "10.1149/2.0291802jes"
}

Spasojević, M., Marković, D., Trišović, T. Lj.,& Spasojević, M.. (2018). Mathematical Model of the Catalytic Effect of Chromium(VI) on Hypochlorite Disproportionation in Chlorate Electrolysis. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 165(2).
https://doi.org/10.1149/2.0291802jes

Spasojević M, Marković D, Trišović TL, Spasojević M. Mathematical Model of the Catalytic Effect of Chromium(VI) on Hypochlorite Disproportionation in Chlorate Electrolysis. in Journal of the Electrochemical Society. 2018;165(2).
doi:10.1149/2.0291802jes .

Spasojević, Miroslav, Marković, Dušan, Trišović, Tomislav Lj., Spasojević, Milica, "Mathematical Model of the Catalytic Effect of Chromium(VI) on Hypochlorite Disproportionation in Chlorate Electrolysis" in Journal of the Electrochemical Society, 165, no. 2 (2018),
https://doi.org/10.1149/2.0291802jes . .

TY  - JOUR
AU  - Spasojević, Miroslav
AU  - Spasojević, Milica
AU  - Mašković, Pavle
AU  - Marković, Dušan
AU  - Ribić-Zelenović, Lenka
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2200
AB  - Powders of Ni-Co alloys containing small amounts of Cu were produced by electrodeposition from an ammonium bath. Cathodic polarization curves were recorded and partial current densities for alloy deposition and hydrogen evolution were determined. At a current density of 100 mA cm(-2), the electrodeposition process resulted in Ni79.1Co18.6Cu2.3 powder with an average grain size of 6.8 nm, composed of an amorphous matrix and FCC nanocrystals. The deposition of Cu with Ni and Co led to a higher proportion of the amorphous phase, smaller nanocrystals and smaller powder particles in the electrodeposit than in the alloy without copper. During annealing at temperatures ranging from 25 degrees C to 160 degrees C, no structural changes occurred in the powder. Upon structural relaxation in the temperature range of 160-350 degrees C, the powders cooled at 25 degrees C showed greater magnetic permeability. At temperatures between 350 degrees C and 430 degrees C, the amorphous phase exhibiting relatively lower magnetization underwent crystallization, accompanied by the formation of small-sized FCC nanocrystals, which had relatively higher magnetization values, leading to an increase in the magnetic permeability of the cooled powder. At temperatures above 430 degrees C, the formation of large crystalline grains at the expense of small ones caused a decrease in magnetization. (C) 2018 The Electrochemical Society.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Electrodeposition, Microstructure and Magnetic Properties of Nickel-Cobalt-Copper Alloy Powders
VL  - 165
IS  - 11
DO  - 10.1149/2.0441811jes
ER  - 

@article{
author = "Spasojević, Miroslav and Spasojević, Milica and Mašković, Pavle and Marković, Dušan and Ribić-Zelenović, Lenka",
year = "2018",
abstract = "Powders of Ni-Co alloys containing small amounts of Cu were produced by electrodeposition from an ammonium bath. Cathodic polarization curves were recorded and partial current densities for alloy deposition and hydrogen evolution were determined. At a current density of 100 mA cm(-2), the electrodeposition process resulted in Ni79.1Co18.6Cu2.3 powder with an average grain size of 6.8 nm, composed of an amorphous matrix and FCC nanocrystals. The deposition of Cu with Ni and Co led to a higher proportion of the amorphous phase, smaller nanocrystals and smaller powder particles in the electrodeposit than in the alloy without copper. During annealing at temperatures ranging from 25 degrees C to 160 degrees C, no structural changes occurred in the powder. Upon structural relaxation in the temperature range of 160-350 degrees C, the powders cooled at 25 degrees C showed greater magnetic permeability. At temperatures between 350 degrees C and 430 degrees C, the amorphous phase exhibiting relatively lower magnetization underwent crystallization, accompanied by the formation of small-sized FCC nanocrystals, which had relatively higher magnetization values, leading to an increase in the magnetic permeability of the cooled powder. At temperatures above 430 degrees C, the formation of large crystalline grains at the expense of small ones caused a decrease in magnetization. (C) 2018 The Electrochemical Society.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Electrodeposition, Microstructure and Magnetic Properties of Nickel-Cobalt-Copper Alloy Powders",
volume = "165",
number = "11",
doi = "10.1149/2.0441811jes"
}

Spasojević, M., Spasojević, M., Mašković, P., Marković, D.,& Ribić-Zelenović, L.. (2018). Electrodeposition, Microstructure and Magnetic Properties of Nickel-Cobalt-Copper Alloy Powders. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 165(11).
https://doi.org/10.1149/2.0441811jes

Spasojević M, Spasojević M, Mašković P, Marković D, Ribić-Zelenović L. Electrodeposition, Microstructure and Magnetic Properties of Nickel-Cobalt-Copper Alloy Powders. in Journal of the Electrochemical Society. 2018;165(11).
doi:10.1149/2.0441811jes .

Spasojević, Miroslav, Spasojević, Milica, Mašković, Pavle, Marković, Dušan, Ribić-Zelenović, Lenka, "Electrodeposition, Microstructure and Magnetic Properties of Nickel-Cobalt-Copper Alloy Powders" in Journal of the Electrochemical Society, 165, no. 11 (2018),
https://doi.org/10.1149/2.0441811jes . .

TY  - JOUR
AU  - Milićević, Ivan
AU  - Spasojević, Milica
AU  - Slavković, Radomir
AU  - Spasojević, Miroslav

AU  - Maričić, Aleksa
PY  - 2018
AB  - The thermal electromotive force (TEMF) and the thermal electromotive force coefficient (TEMFC) of the thermocouple consisting of a copper wire and an (X5CrNi1810) steel wire plastically deformed under tension or bending conditions were found to increase with increasing degree of plastic deformation. The increase in the degree of deformation disturbs the microstructure of steel due to increases in the density of chaotically distributed dislocations and internal microstress, resulting in a decrease in the electron density of states near the Fermi level. Through the effect of thermal energy, annealing at elevated temperatures up to 300°C leads to microstructural ordering along with simultaneous increases in the free electron density of states, TEMF and TEMFC. Based on the temporal change of the TEMF, the kinetics of microstructural ordering was determined. During the initial time interval, the process is a kinetically controlled first-order reaction. In the second time interval, the process is controlled by the diffusion of reactant species.
PB  - International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Effect of the degree of plastic deformation on the thermal electromotive force of Cu-X5crni1810 steel thermocouple
VL  - 50
IS  - 4
SP  - 421
EP  - 432
DO  - 10.2298/SOS1804421M
ER  - 

@article{
author = "Milićević, Ivan and Spasojević, Milica and Slavković, Radomir and Spasojević, Miroslav
 and Maričić, Aleksa",
year = "2018",
abstract = "The thermal electromotive force (TEMF) and the thermal electromotive force coefficient (TEMFC) of the thermocouple consisting of a copper wire and an (X5CrNi1810) steel wire plastically deformed under tension or bending conditions were found to increase with increasing degree of plastic deformation. The increase in the degree of deformation disturbs the microstructure of steel due to increases in the density of chaotically distributed dislocations and internal microstress, resulting in a decrease in the electron density of states near the Fermi level. Through the effect of thermal energy, annealing at elevated temperatures up to 300°C leads to microstructural ordering along with simultaneous increases in the free electron density of states, TEMF and TEMFC. Based on the temporal change of the TEMF, the kinetics of microstructural ordering was determined. During the initial time interval, the process is a kinetically controlled first-order reaction. In the second time interval, the process is controlled by the diffusion of reactant species.",
publisher = "International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Effect of the degree of plastic deformation on the thermal electromotive force of Cu-X5crni1810 steel thermocouple",
volume = "50",
number = "4",
pages = "421-432",
doi = "10.2298/SOS1804421M"
}

Milićević, I., Spasojević, M., Slavković, R., Spasojević, M.,& Maričić, A.. (2018). Effect of the degree of plastic deformation on the thermal electromotive force of Cu-X5crni1810 steel thermocouple. in Science of Sintering
International Institute for the Science of Sintering., 50(4), 421-432.
https://doi.org/10.2298/SOS1804421M

Milićević I, Spasojević M, Slavković R, Spasojević M, Maričić A. Effect of the degree of plastic deformation on the thermal electromotive force of Cu-X5crni1810 steel thermocouple. in Science of Sintering. 2018;50(4):421-432.
doi:10.2298/SOS1804421M .

Milićević, Ivan, Spasojević, Milica, Slavković, Radomir, Spasojević, Miroslav
, Maričić, Aleksa, "Effect of the degree of plastic deformation on the thermal electromotive force of Cu-X5crni1810 steel thermocouple" in Science of Sintering, 50, no. 4 (2018):421-432,
https://doi.org/10.2298/SOS1804421M . .

TY  - JOUR
AU  - Milinčić, Radovan
AU  - Spasojević, Miroslav
AU  - Spasojević, Milica
AU  - Maričić, Aleksa
AU  - Randjic, Sinisa
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2396
AB  - The hydrogenation of a crystalline Ni-Fe (80 wt.% Ni, 20 wt.% Fe) powder mixture leads to the formation of a mixture of Face Centered Cubic (FCC)-Ni and FCC-Fe phase nanocrystals embedded in an amorphous matrix. The magnetic susceptibility of the nanostructured powder is 2.1 times higher than that of the as-produced crystalline mixture. Heating in the temperature range 420-590 K causes structural relaxation in the hydrogenated powder, resulting in an increase of the magnetic susceptibility and a decrease of the electrical resistivity. During the heating procedure, the reorientation of magnetic domains in nickel and iron takes place in the temperature range 580-650 K and 790-850 K, respectively. In the pressed sample from the powder mixture, the crystallization of the amorphous phase of nickel and its FCC lattice crystalline grain growth occurs in the temperature range 620-873 K causing a decrease in the magnetic susceptibility of the nickel FCC phase and a sudden drop in the electrical resistivity. Prolonged heating of the mixed powders at 873K results in the formation of a Ni-Fe solid solution with higher magnetic susceptibility than the starting mixture.
PB  - Int Inst Science Sintering (I I S S), Belgrade
T2  - Science of Sintering
T1  - Amorphous-Crystalline Ni-Fe Powder Mixture: Hydrogenation and Annealing Effects on Microstructure and Electrical and Magnetic Properties
VL  - 48
IS  - 3
SP  - 343
EP  - 351
DO  - 10.2298/SOS1603343M
ER  - 

@article{
author = "Milinčić, Radovan and Spasojević, Miroslav and Spasojević, Milica and Maričić, Aleksa and Randjic, Sinisa",
year = "2016",
abstract = "The hydrogenation of a crystalline Ni-Fe (80 wt.% Ni, 20 wt.% Fe) powder mixture leads to the formation of a mixture of Face Centered Cubic (FCC)-Ni and FCC-Fe phase nanocrystals embedded in an amorphous matrix. The magnetic susceptibility of the nanostructured powder is 2.1 times higher than that of the as-produced crystalline mixture. Heating in the temperature range 420-590 K causes structural relaxation in the hydrogenated powder, resulting in an increase of the magnetic susceptibility and a decrease of the electrical resistivity. During the heating procedure, the reorientation of magnetic domains in nickel and iron takes place in the temperature range 580-650 K and 790-850 K, respectively. In the pressed sample from the powder mixture, the crystallization of the amorphous phase of nickel and its FCC lattice crystalline grain growth occurs in the temperature range 620-873 K causing a decrease in the magnetic susceptibility of the nickel FCC phase and a sudden drop in the electrical resistivity. Prolonged heating of the mixed powders at 873K results in the formation of a Ni-Fe solid solution with higher magnetic susceptibility than the starting mixture.",
publisher = "Int Inst Science Sintering (I I S S), Belgrade",
journal = "Science of Sintering",
title = "Amorphous-Crystalline Ni-Fe Powder Mixture: Hydrogenation and Annealing Effects on Microstructure and Electrical and Magnetic Properties",
volume = "48",
number = "3",
pages = "343-351",
doi = "10.2298/SOS1603343M"
}

Milinčić, R., Spasojević, M., Spasojević, M., Maričić, A.,& Randjic, S.. (2016). Amorphous-Crystalline Ni-Fe Powder Mixture: Hydrogenation and Annealing Effects on Microstructure and Electrical and Magnetic Properties. in Science of Sintering
Int Inst Science Sintering (I I S S), Belgrade., 48(3), 343-351.
https://doi.org/10.2298/SOS1603343M

Milinčić R, Spasojević M, Spasojević M, Maričić A, Randjic S. Amorphous-Crystalline Ni-Fe Powder Mixture: Hydrogenation and Annealing Effects on Microstructure and Electrical and Magnetic Properties. in Science of Sintering. 2016;48(3):343-351.
doi:10.2298/SOS1603343M .

Milinčić, Radovan, Spasojević, Miroslav, Spasojević, Milica, Maričić, Aleksa, Randjic, Sinisa, "Amorphous-Crystalline Ni-Fe Powder Mixture: Hydrogenation and Annealing Effects on Microstructure and Electrical and Magnetic Properties" in Science of Sintering, 48, no. 3 (2016):343-351,
https://doi.org/10.2298/SOS1603343M . .

TY  - JOUR
AU  - Spasojević, Miroslav
AU  - Gospavic, Dragana
AU  - Spasojević, Milica
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2400
AB  - Nanostructured 85.8 wt% Ni-10.6 wt% Fe-1.4 wt% W-2.2 wt% Cu alloy powder was deposited from an ammonium citrate bath at a current density of 600 mA cm(-2). A cathodic polarization curve was recorded, and the current efficiency of the alloy was determined as a function of current density. The deposition of the alloy at current densities up to 400 mA cm(-2) is an activation-controlled process. At higher densities, diffusion control is attained. At potentials more positive than -0.90 V, hydrogen evolution from NH4+ and (HCit)(3-) ions occurs in parallel with the alloy deposition. XRD analysis revealed an amorphous matrix embedded with nanocrystals of the FCC phase of the solid solution of iron, tungsten and copper in nickel. SEM micrographs showed the formation of two shapes of particles: large cauliflower-like particles and small dendritic particles with a large number of secondary and higher-order branches. The annealing of the as-deposited powder causes structural changes which consequently affect its magnetic properties. In the temperature range of 150 degrees C-460 degrees C, structural relaxation takes place, involving short-range ordering and an increase in the relative magnetic permeability of the cooled sample. At temperatures above 460 degrees C, amorphous matrix crystallization and crystalline grain growth of the FCC solid solution occur, resulting in a decrease in the magnetic permeability of the powder. (C) 2016 The Electrochemical Society. All rights reserved.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Microstructure and Magnetic Properties of Electrodeposited Ni85.8Fe10.6W1.4Cu2.2 Alloy Powder
VL  - 163
IS  - 14
DO  - 10.1149/2.1131614jes
ER  - 

@article{
author = "Spasojević, Miroslav and Gospavic, Dragana and Spasojević, Milica",
year = "2016",
abstract = "Nanostructured 85.8 wt% Ni-10.6 wt% Fe-1.4 wt% W-2.2 wt% Cu alloy powder was deposited from an ammonium citrate bath at a current density of 600 mA cm(-2). A cathodic polarization curve was recorded, and the current efficiency of the alloy was determined as a function of current density. The deposition of the alloy at current densities up to 400 mA cm(-2) is an activation-controlled process. At higher densities, diffusion control is attained. At potentials more positive than -0.90 V, hydrogen evolution from NH4+ and (HCit)(3-) ions occurs in parallel with the alloy deposition. XRD analysis revealed an amorphous matrix embedded with nanocrystals of the FCC phase of the solid solution of iron, tungsten and copper in nickel. SEM micrographs showed the formation of two shapes of particles: large cauliflower-like particles and small dendritic particles with a large number of secondary and higher-order branches. The annealing of the as-deposited powder causes structural changes which consequently affect its magnetic properties. In the temperature range of 150 degrees C-460 degrees C, structural relaxation takes place, involving short-range ordering and an increase in the relative magnetic permeability of the cooled sample. At temperatures above 460 degrees C, amorphous matrix crystallization and crystalline grain growth of the FCC solid solution occur, resulting in a decrease in the magnetic permeability of the powder. (C) 2016 The Electrochemical Society. All rights reserved.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Microstructure and Magnetic Properties of Electrodeposited Ni85.8Fe10.6W1.4Cu2.2 Alloy Powder",
volume = "163",
number = "14",
doi = "10.1149/2.1131614jes"
}

Spasojević, M., Gospavic, D.,& Spasojević, M.. (2016). Microstructure and Magnetic Properties of Electrodeposited Ni85.8Fe10.6W1.4Cu2.2 Alloy Powder. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 163(14).
https://doi.org/10.1149/2.1131614jes

Spasojević M, Gospavic D, Spasojević M. Microstructure and Magnetic Properties of Electrodeposited Ni85.8Fe10.6W1.4Cu2.2 Alloy Powder. in Journal of the Electrochemical Society. 2016;163(14).
doi:10.1149/2.1131614jes .

Spasojević, Miroslav, Gospavic, Dragana, Spasojević, Milica, "Microstructure and Magnetic Properties of Electrodeposited Ni85.8Fe10.6W1.4Cu2.2 Alloy Powder" in Journal of the Electrochemical Society, 163, no. 14 (2016),
https://doi.org/10.1149/2.1131614jes . .