TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Vukicević, Nataša M.
AU  - Nikolic, Nebojša D.
AU  - Baščarević, Zvezdana
AU  - Barudzija, Tanja S.
AU  - Jovicević, Jovan N.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1251
AB  - The processes of electrodeposition from magnesium nitrate hexahydrate melt by galvanostatic regime of electrolysis have been analyzed. The structure of the formed particles was examined by X-ray diffraction (XRD), which revealed formation of MgO/Mg(OH)(2) mixture by molten salt electrolysis. Morphologies of the produced deposits were characterized by scanning electron microscopy (SEM) technique. The flower-like forms constructed from very thin needles with sharp tips were predominately formed by electrodeposition at various current densities and with various amounts of electricity. Aside from that, holes formed from detached hydrogen bubbles of various shapes and sizes, from dish-like holes to those resulting in honeycomb-like structures were also observed. Mechanism of formation of the flower-like forms has been elucidated applying the general theory of disperse deposits formation which is based on the concept of local (spherical and cylindrical) diffusion fields. It is shown that the growth of the needles occurs under the conditions of predominant spherical diffusion control, while the contribution of the cylindrical diffusion to the final shapes was negligible. Comparison with morphologies of deposits obtained by electrodepositions from aqueous magnesium salt electrolytes was also made and discussed.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - A possible mechanism of formation of flower-like MgO/Mg(OH)(2) structures by galvanostatic molten salt electrolysis: The concept of local diffusion fields
EP  - 175
SP  - 168
VL  - 842
DO  - 10.1016/j.jelechem.2019.04.067
ER  - 

@article{
author = "Cvetković, Vesna S. and Vukicević, Nataša M. and Nikolic, Nebojša D. and Baščarević, Zvezdana and Barudzija, Tanja S. and Jovicević, Jovan N.",
year = "2019",
abstract = "The processes of electrodeposition from magnesium nitrate hexahydrate melt by galvanostatic regime of electrolysis have been analyzed. The structure of the formed particles was examined by X-ray diffraction (XRD), which revealed formation of MgO/Mg(OH)(2) mixture by molten salt electrolysis. Morphologies of the produced deposits were characterized by scanning electron microscopy (SEM) technique. The flower-like forms constructed from very thin needles with sharp tips were predominately formed by electrodeposition at various current densities and with various amounts of electricity. Aside from that, holes formed from detached hydrogen bubbles of various shapes and sizes, from dish-like holes to those resulting in honeycomb-like structures were also observed. Mechanism of formation of the flower-like forms has been elucidated applying the general theory of disperse deposits formation which is based on the concept of local (spherical and cylindrical) diffusion fields. It is shown that the growth of the needles occurs under the conditions of predominant spherical diffusion control, while the contribution of the cylindrical diffusion to the final shapes was negligible. Comparison with morphologies of deposits obtained by electrodepositions from aqueous magnesium salt electrolytes was also made and discussed.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "A possible mechanism of formation of flower-like MgO/Mg(OH)(2) structures by galvanostatic molten salt electrolysis: The concept of local diffusion fields",
pages = "175-168",
volume = "842",
doi = "10.1016/j.jelechem.2019.04.067"
}

Cvetković, V. S., Vukicević, N. M., Nikolic, N. D., Baščarević, Z., Barudzija, T. S.,& Jovicević, J. N.. (2019). A possible mechanism of formation of flower-like MgO/Mg(OH)(2) structures by galvanostatic molten salt electrolysis: The concept of local diffusion fields. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 842, 168-175.
https://doi.org/10.1016/j.jelechem.2019.04.067

Cvetković VS, Vukicević NM, Nikolic ND, Baščarević Z, Barudzija TS, Jovicević JN. A possible mechanism of formation of flower-like MgO/Mg(OH)(2) structures by galvanostatic molten salt electrolysis: The concept of local diffusion fields. in Journal of Electroanalytical Chemistry. 2019;842:168-175.
doi:10.1016/j.jelechem.2019.04.067 .

Cvetković, Vesna S., Vukicević, Nataša M., Nikolic, Nebojša D., Baščarević, Zvezdana, Barudzija, Tanja S., Jovicević, Jovan N., "A possible mechanism of formation of flower-like MgO/Mg(OH)(2) structures by galvanostatic molten salt electrolysis: The concept of local diffusion fields" in Journal of Electroanalytical Chemistry, 842 (2019):168-175,
https://doi.org/10.1016/j.jelechem.2019.04.067 . .

TY  - JOUR
AU  - Elezović, Nevenka R.
AU  - Lović, J. D.
AU  - Jović, Borka M
AU  - Zabinski, P.
AU  - Wloch, Grzegorz
AU  - Jović, Vladimir D
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1207
AB  - The Ag, Pd and AgPd alloys of different morphologies and compositions were electrodeposited onto Au and glassy carbon (GC) disc electrodes from the solution containing 0.001 M PdCl2 + 0.04 M AgCl + 0.1 M HCl + 12 M LiCl under the conditions of non-stationary (RPM = 0, samples AgPd1 and AgPd2) and convective diffusion (RPM = 1000, sample AgPd3). Electrodeposited alloy layers were characterized by the scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). Oxygen reduction reaction (ORR) was investigated on all coatings in 0.1 M NaOH solution saturated with oxygen. The j-E curves for the ORR were recorded by two procedures: (1) samples were cycled with 5 mV s(-1) from open circuit potential (OCP) to -0.8 V for Ag and AgPd alloys (or -0.6 V for pure Pd) and back; (2) samples were cycled with 5 mV s(-1) from open circuit potential to 0.45 V (formation of Ag2O, in the case of Pd formation of PdO and PdO2), from 0.45 V to -0.60 V and back to the OCP. Significant catalytic activity for the Ag and AgPd alloys was detected after cycling electrodes in the potential region of Ag2O formation and reduction. Increase of the catalytic activity for AgPd alloys was, for the first time in the literature, ascribed to the presence of a certain amount of Ag2O which could not be completely reduced during the reverse sweep from 0.45 V to -0.6 V. Catalytic activity of AgPd alloys was found to be closely related to the amount of non-reduced Ag2O (most probably in the form of Ag-hydroxide). In the absence of such treatment, the catalytic activity for the ORR on electrodeposited Ag and AgPd alloy coatings was not detected.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Synthesis and characterization of AgPd alloy coatings as beneficial catalysts for low temperature fuel cells application
EP  - 368
SP  - 360
VL  - 307
DO  - 10.1016/j.electacta.2019.03.177
ER  - 

@article{
author = "Elezović, Nevenka R. and Lović, J. D. and Jović, Borka M and Zabinski, P. and Wloch, Grzegorz and Jović, Vladimir D",
year = "2019",
abstract = "The Ag, Pd and AgPd alloys of different morphologies and compositions were electrodeposited onto Au and glassy carbon (GC) disc electrodes from the solution containing 0.001 M PdCl2 + 0.04 M AgCl + 0.1 M HCl + 12 M LiCl under the conditions of non-stationary (RPM = 0, samples AgPd1 and AgPd2) and convective diffusion (RPM = 1000, sample AgPd3). Electrodeposited alloy layers were characterized by the scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). Oxygen reduction reaction (ORR) was investigated on all coatings in 0.1 M NaOH solution saturated with oxygen. The j-E curves for the ORR were recorded by two procedures: (1) samples were cycled with 5 mV s(-1) from open circuit potential (OCP) to -0.8 V for Ag and AgPd alloys (or -0.6 V for pure Pd) and back; (2) samples were cycled with 5 mV s(-1) from open circuit potential to 0.45 V (formation of Ag2O, in the case of Pd formation of PdO and PdO2), from 0.45 V to -0.60 V and back to the OCP. Significant catalytic activity for the Ag and AgPd alloys was detected after cycling electrodes in the potential region of Ag2O formation and reduction. Increase of the catalytic activity for AgPd alloys was, for the first time in the literature, ascribed to the presence of a certain amount of Ag2O which could not be completely reduced during the reverse sweep from 0.45 V to -0.6 V. Catalytic activity of AgPd alloys was found to be closely related to the amount of non-reduced Ag2O (most probably in the form of Ag-hydroxide). In the absence of such treatment, the catalytic activity for the ORR on electrodeposited Ag and AgPd alloy coatings was not detected.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Synthesis and characterization of AgPd alloy coatings as beneficial catalysts for low temperature fuel cells application",
pages = "368-360",
volume = "307",
doi = "10.1016/j.electacta.2019.03.177"
}

Elezović, N. R., Lović, J. D., Jović, B. M., Zabinski, P., Wloch, G.,& Jović, V. D.. (2019). Synthesis and characterization of AgPd alloy coatings as beneficial catalysts for low temperature fuel cells application. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 307, 360-368.
https://doi.org/10.1016/j.electacta.2019.03.177

Elezović NR, Lović JD, Jović BM, Zabinski P, Wloch G, Jović VD. Synthesis and characterization of AgPd alloy coatings as beneficial catalysts for low temperature fuel cells application. in Electrochimica Acta. 2019;307:360-368.
doi:10.1016/j.electacta.2019.03.177 .

Elezović, Nevenka R., Lović, J. D., Jović, Borka M, Zabinski, P., Wloch, Grzegorz, Jović, Vladimir D, "Synthesis and characterization of AgPd alloy coatings as beneficial catalysts for low temperature fuel cells application" in Electrochimica Acta, 307 (2019):360-368,
https://doi.org/10.1016/j.electacta.2019.03.177 . .

TY  - JOUR
AU  - Krstajic-Pajic, M. N.
AU  - Stevanović, Sanja I.
AU  - Radmilović, Velimir R
AU  - Gavrilovic-Wohlmuther, Aleksandra
AU  - Zabinski, P.
AU  - Elezović, Nevenka R.
AU  - Radmilović, Vuk V.
AU  - Gojković, Snežana Lj
AU  - Jovanović, V. M.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1218
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 = "Krstajic-Pajic, M. N. and Stevanović, Sanja I. and Radmilović, Velimir R and Gavrilovic-Wohlmuther, Aleksandra and Zabinski, P. and Elezović, Nevenka R. and Radmilović, Vuk V. and Gojković, Snežana Lj and Jovanović, V. 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"
}

Krstajic-Pajic, M. N., Stevanović, S. I., Radmilović, V. R., Gavrilovic-Wohlmuther, A., Zabinski, P., Elezović, N. R., Radmilović, V. V., Gojković, S. L.,& 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

Krstajic-Pajic MN, Stevanović SI, Radmilović VR, Gavrilovic-Wohlmuther A, Zabinski P, Elezović NR, Radmilović VV, 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 .

Krstajic-Pajic, M. N., Stevanović, Sanja I., Radmilović, Velimir R, Gavrilovic-Wohlmuther, Aleksandra, Zabinski, P., Elezović, Nevenka R., Radmilović, Vuk V., Gojković, Snežana Lj, Jovanović, V. 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  - Cvetković, Vesna S.
AU  - Vukicević, Nataša M.
AU  - Nikolic, Nebojša D.
AU  - Branković, Goran
AU  - Barudzija, Tanja S.
AU  - Jovicević, Jovan N.
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1146
AB  - The processes of electrochemical deposition of magnesium oxide/hydroxide on glassy carbon (GC) electrode from magnesium nitrate hexahydrate melt have been investigated. A novel procedure predicting a possibility of direct formation of magnesium oxide during electrodeposition from the nitrate melt used is reported. XRD analysis of the obtained deposits showed the formation of magnesium oxide along with magnesium hydroxide. The electrodeposition of magnesium oxide/hydroxide commences in magnesium underpotential (UPD) and continues through the magnesium overpotential (OPD) region. Network of individual or intertwined very thin needles as well as those grouped in flower-like aggregates or honeycomb-like structures were formed in both magnesium UPD and OPD regions. Formation of the long needles was explained through theories of mechanisms of dendrite formation. Hydrogen evolution commences in the magnesium OPD region and increases with the applied overpotential. Holes observed in the deposit originated from the detached hydrogen bubbles. The number, shape and size of the hole strongly depended on both the applied cathodic potential and the hold time of electrodeposition. Magnesium oxides/hydroxides syntheses taking part simultaneously at various applied potentials are a result of reactions between magnesium cations and products of water and nitrate anions reduction processes. Chemical reactions responsible for direct formation of magnesium oxide observed are those of magnesium ions and oxygen ions, formed by nitrate reduction taking part in the close vicinity of the working electrode.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Formation of needle-like and honeycomb-like magnesium oxide/hydroxide structures by electrodeposition from magnesium nitrate melts
EP  - 502
SP  - 494
VL  - 268
DO  - 10.1016/j.electacta.2018.02.121
ER  - 

@article{
author = "Cvetković, Vesna S. and Vukicević, Nataša M. and Nikolic, Nebojša D. and Branković, Goran and Barudzija, Tanja S. and Jovicević, Jovan N.",
year = "2018",
abstract = "The processes of electrochemical deposition of magnesium oxide/hydroxide on glassy carbon (GC) electrode from magnesium nitrate hexahydrate melt have been investigated. A novel procedure predicting a possibility of direct formation of magnesium oxide during electrodeposition from the nitrate melt used is reported. XRD analysis of the obtained deposits showed the formation of magnesium oxide along with magnesium hydroxide. The electrodeposition of magnesium oxide/hydroxide commences in magnesium underpotential (UPD) and continues through the magnesium overpotential (OPD) region. Network of individual or intertwined very thin needles as well as those grouped in flower-like aggregates or honeycomb-like structures were formed in both magnesium UPD and OPD regions. Formation of the long needles was explained through theories of mechanisms of dendrite formation. Hydrogen evolution commences in the magnesium OPD region and increases with the applied overpotential. Holes observed in the deposit originated from the detached hydrogen bubbles. The number, shape and size of the hole strongly depended on both the applied cathodic potential and the hold time of electrodeposition. Magnesium oxides/hydroxides syntheses taking part simultaneously at various applied potentials are a result of reactions between magnesium cations and products of water and nitrate anions reduction processes. Chemical reactions responsible for direct formation of magnesium oxide observed are those of magnesium ions and oxygen ions, formed by nitrate reduction taking part in the close vicinity of the working electrode.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Formation of needle-like and honeycomb-like magnesium oxide/hydroxide structures by electrodeposition from magnesium nitrate melts",
pages = "502-494",
volume = "268",
doi = "10.1016/j.electacta.2018.02.121"
}

Cvetković, V. S., Vukicević, N. M., Nikolic, N. D., Branković, G., Barudzija, T. S.,& Jovicević, J. N.. (2018). Formation of needle-like and honeycomb-like magnesium oxide/hydroxide structures by electrodeposition from magnesium nitrate melts. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 268, 494-502.
https://doi.org/10.1016/j.electacta.2018.02.121

Cvetković VS, Vukicević NM, Nikolic ND, Branković G, Barudzija TS, Jovicević JN. Formation of needle-like and honeycomb-like magnesium oxide/hydroxide structures by electrodeposition from magnesium nitrate melts. in Electrochimica Acta. 2018;268:494-502.
doi:10.1016/j.electacta.2018.02.121 .

Cvetković, Vesna S., Vukicević, Nataša M., Nikolic, Nebojša D., Branković, Goran, Barudzija, Tanja S., Jovicević, Jovan N., "Formation of needle-like and honeycomb-like magnesium oxide/hydroxide structures by electrodeposition from magnesium nitrate melts" in Electrochimica Acta, 268 (2018):494-502,
https://doi.org/10.1016/j.electacta.2018.02.121 . .

TY  - JOUR
AU  - Vukicević, Nataša M.
AU  - Cvetković, Vesna S.
AU  - Nikolic, Nebojša D.
AU  - Branković, Goran
AU  - Barudzija, Tanja S.
AU  - Jovicević, Jovan N.
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1121
AB  - Synthesis of the honeycomb-like MgO/Mg(OH)(2) structures, with controlled shape and size of holes, by the electrolysis from magnesium nitrate hexahydrate melt onto glassy carbon is presented. The honeycomb-like structures were made up of holes, formed from detached hydrogen bubbles, surrounded by walls, built up of thin intertwined needles. For the first time, it was shown that the honeycomb-like structures can be obtained by molten salt electrolysis and not exclusively by electrolysis from aqueous electrolytes. Analogies with the processes of the honeycomb-like metal structures formation from aqueous electrolytes are presented and discussed. Rules established for the formation of these structures from aqueous electrolytes, such as the increase of number of holes, the decrease of holes size and coalescence of neighbouring hydrogen bubbles observed with increasing cathodic potential, appeared to be valid for the electrolysis of the molten salt used.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Formation of the honeycomb-like MgO/Mg(OH)(2) structures with controlled shape and size of holes by molten salt electrolysis
EP  - 1362
IS  - 12
SP  - 1351
VL  - 83
DO  - 10.2298/JSC180913084V
ER  - 

@article{
author = "Vukicević, Nataša M. and Cvetković, Vesna S. and Nikolic, Nebojša D. and Branković, Goran and Barudzija, Tanja S. and Jovicević, Jovan N.",
year = "2018",
abstract = "Synthesis of the honeycomb-like MgO/Mg(OH)(2) structures, with controlled shape and size of holes, by the electrolysis from magnesium nitrate hexahydrate melt onto glassy carbon is presented. The honeycomb-like structures were made up of holes, formed from detached hydrogen bubbles, surrounded by walls, built up of thin intertwined needles. For the first time, it was shown that the honeycomb-like structures can be obtained by molten salt electrolysis and not exclusively by electrolysis from aqueous electrolytes. Analogies with the processes of the honeycomb-like metal structures formation from aqueous electrolytes are presented and discussed. Rules established for the formation of these structures from aqueous electrolytes, such as the increase of number of holes, the decrease of holes size and coalescence of neighbouring hydrogen bubbles observed with increasing cathodic potential, appeared to be valid for the electrolysis of the molten salt used.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Formation of the honeycomb-like MgO/Mg(OH)(2) structures with controlled shape and size of holes by molten salt electrolysis",
pages = "1362-1351",
number = "12",
volume = "83",
doi = "10.2298/JSC180913084V"
}

Vukicević, N. M., Cvetković, V. S., Nikolic, N. D., Branković, G., Barudzija, T. S.,& Jovicević, J. N.. (2018). Formation of the honeycomb-like MgO/Mg(OH)(2) structures with controlled shape and size of holes by molten salt electrolysis. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 83(12), 1351-1362.
https://doi.org/10.2298/JSC180913084V

Vukicević NM, Cvetković VS, Nikolic ND, Branković G, Barudzija TS, Jovicević JN. Formation of the honeycomb-like MgO/Mg(OH)(2) structures with controlled shape and size of holes by molten salt electrolysis. in Journal of the Serbian Chemical Society. 2018;83(12):1351-1362.
doi:10.2298/JSC180913084V .

Vukicević, Nataša M., Cvetković, Vesna S., Nikolic, Nebojša D., Branković, Goran, Barudzija, Tanja S., Jovicević, Jovan N., "Formation of the honeycomb-like MgO/Mg(OH)(2) structures with controlled shape and size of holes by molten salt electrolysis" in Journal of the Serbian Chemical Society, 83, no. 12 (2018):1351-1362,
https://doi.org/10.2298/JSC180913084V . .

TY  - JOUR
AU  - Lović, J. D.
AU  - Elezović, Nevenka R.
AU  - Jović, Borka M
AU  - Zabinski, P.
AU  - Gajić-Krstajić, Ljiljana M
AU  - Jović, Vladimir D
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1153
AB  - The Pd and three AgPd alloy layers (AgPd1, AgPd2 and AgPd3) were electrodeposited onto Au disc electrodes from the solution containing high concentration of chloride ions (>12 M). All coatings were investigated by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), anodic linear sweep voltammetry (ALSV), while their surface composition was investigated by X-ray photoelectron spectroscopy (XPS). The AgPd1 and AgPd2 samples were electrodeposited at different constant current densities (-0.178 mA cm(-2) and -0.415 mA cm(-2) respectively) to the charge of -0.2 C cm(-2) (thickness similar to 0.18 mu m) at a stationary disc electrode, while the sample AgPd3 was electrodeposited to the charge of -3.0 C cm(-2) (thickness similar to 2.8 mu m) at a constant current density of -7.0 mA cm(-2) under the conditions of convective diffusion. Samples AgPd1 and AgPd2 had similar morphologies of low roughness, while the morphology of AgPd3 was characterized by large crystals and higher roughness. The most active and the most poisoning tolerant coatings for ethanol oxidation reaction (EOR) are the AgPd3 and AgPd1 alloy samples, containing 72.6 at.% Ag - 27.4 at.% Pd and 84.7 at.% Ag - 15.2 at.% Pd respectively (XPS analysis). In this study, we demonstrated for the first time that the activity for the EOR at AgPd alloys was closely related to the amount of non-reduced Ag2O (most probably as Ag - hydroxide). Accordingly, all AgPd alloy samples had to be cycled in the potential region of Ag2O formation and reduction before the investigation of the EOR, in order to provide their catalytic activity towards the EOR.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Electrodeposited AgPd alloy coatings as efficient catalysts for the ethanol oxidation reaction
EP  - 18508
IS  - 39
SP  - 18498
VL  - 43
DO  - 10.1016/j.ijhydene.2018.08.056
ER  - 

@article{
author = "Lović, J. D. and Elezović, Nevenka R. and Jović, Borka M and Zabinski, P. and Gajić-Krstajić, Ljiljana M and Jović, Vladimir D",
year = "2018",
abstract = "The Pd and three AgPd alloy layers (AgPd1, AgPd2 and AgPd3) were electrodeposited onto Au disc electrodes from the solution containing high concentration of chloride ions (>12 M). All coatings were investigated by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), anodic linear sweep voltammetry (ALSV), while their surface composition was investigated by X-ray photoelectron spectroscopy (XPS). The AgPd1 and AgPd2 samples were electrodeposited at different constant current densities (-0.178 mA cm(-2) and -0.415 mA cm(-2) respectively) to the charge of -0.2 C cm(-2) (thickness similar to 0.18 mu m) at a stationary disc electrode, while the sample AgPd3 was electrodeposited to the charge of -3.0 C cm(-2) (thickness similar to 2.8 mu m) at a constant current density of -7.0 mA cm(-2) under the conditions of convective diffusion. Samples AgPd1 and AgPd2 had similar morphologies of low roughness, while the morphology of AgPd3 was characterized by large crystals and higher roughness. The most active and the most poisoning tolerant coatings for ethanol oxidation reaction (EOR) are the AgPd3 and AgPd1 alloy samples, containing 72.6 at.% Ag - 27.4 at.% Pd and 84.7 at.% Ag - 15.2 at.% Pd respectively (XPS analysis). In this study, we demonstrated for the first time that the activity for the EOR at AgPd alloys was closely related to the amount of non-reduced Ag2O (most probably as Ag - hydroxide). Accordingly, all AgPd alloy samples had to be cycled in the potential region of Ag2O formation and reduction before the investigation of the EOR, in order to provide their catalytic activity towards the EOR.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Electrodeposited AgPd alloy coatings as efficient catalysts for the ethanol oxidation reaction",
pages = "18508-18498",
number = "39",
volume = "43",
doi = "10.1016/j.ijhydene.2018.08.056"
}

Lović, J. D., Elezović, N. R., Jović, B. M., Zabinski, P., Gajić-Krstajić, L. M.,& Jović, V. D.. (2018). Electrodeposited AgPd alloy coatings as efficient catalysts for the ethanol oxidation reaction. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 43(39), 18498-18508.
https://doi.org/10.1016/j.ijhydene.2018.08.056

Lović JD, Elezović NR, Jović BM, Zabinski P, Gajić-Krstajić LM, Jović VD. Electrodeposited AgPd alloy coatings as efficient catalysts for the ethanol oxidation reaction. in International Journal of Hydrogen Energy. 2018;43(39):18498-18508.
doi:10.1016/j.ijhydene.2018.08.056 .

Lović, J. D., Elezović, Nevenka R., Jović, Borka M, Zabinski, P., Gajić-Krstajić, Ljiljana M, Jović, Vladimir D, "Electrodeposited AgPd alloy coatings as efficient catalysts for the ethanol oxidation reaction" in International Journal of Hydrogen Energy, 43, no. 39 (2018):18498-18508,
https://doi.org/10.1016/j.ijhydene.2018.08.056 . .

TY  - JOUR
AU  - Tripković, D.
AU  - Stevanović, Sanja I.
AU  - Gavrilović, A.
AU  - Rogan, Jelena
AU  - Lačnjevac, Uroš
AU  - Kravić, T.
AU  - Jovanović, V. M.
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1118
AB  - In our previous paper, we described in detail studies of Sn influence on electrocatalytic activity of PtSn catalyst for CO and formic acid oxidation (StevanoviAc et al., J. Phys. Chem. C, 118 (2014) 278-289). The catalyst was composed of a Pt phase, Pt3Sn alloy and very small SnO2 particles. Different electrochemical treatment enabled studies of PtSn/C having Sn both in surface and subsurface layers and skeleton structure of this catalyst with Sn only in subsurface layers. The results obtained revealed the promotional effect of surface Sn whether alloyed or as oxide above all in preventing accumulation of CO and blocking the surface Pt atoms. As a consequence, in formic acid oxidation, the currents are not entering the plateau but increasing constantly until reaching a maximum. It was concluded that at lower potentials the effect of Sn on formic acid oxidation was predominantly electronic but with increasing the potential bi-functional mechanism prevailed due to the leading role of SnO2. This role of SnO2 is restated in the present study. Therefore, CO and formic acid oxidation were examined at PtSnO2/C catalyst. The catalyst was synthesised by the same microwave-assisted polyol procedure. According to XRD analysis, the catalyst is composed of a Pt phase and SnO2 phase. The reactions were examined on PtSnO2/C catalyst treated on the same way as PtSn/C. Comparing the results obtained, the role of SnO2 is confirmed and at the same time the significance of alloyed Sn and its electronic effect is revealed.
PB  - Springer, New York
T2  - Electrocatalysis
T1  - The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts
EP  - 85
IS  - 1
SP  - 76
VL  - 9
DO  - 10.1007/s12678-017-0424-4
ER  - 

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

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

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

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