TY  - JOUR
AU  - Rakočević, Lazar
AU  - Stojković Simatović, Ivana
AU  - Maksić, Aleksandar
AU  - Rajić, Vladimir
AU  - Štrbac, Svetlana
AU  - Srejić, Irina
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5292
AB  - PtAu nanoparticles spontaneously deposited on graphene support, PtAu/rGO, have shown
remarkably high catalytic activity for hydrogen evolution reaction (HER) in sulfuric acid solution.
SEM images of the PtAu/rGO electrode surface showed that Pt nanoparticles that are non-uniform
in size occupy both the edges of previously deposited uniform Au nanoparticles and the edges of
graphene support. XPS analysis showed that the atomic percentages of Au and Pt in PtAu/rGO were
0.6% and 0.3%, respectively. The atomic percentage of Au alone on previously prepared Au/rGO
was 0.7%. Outstanding HER activity was achieved for the PtAu/rGO electrode, showing the initial
potential close to the equilibrium potential for HER and a low Tafel slope of −38 mV/dec. This
was confirmed by electrochemical impedance spectroscopy. The chronoamperometric measurement
performed for 40 min for hydrogen evolution at a constant potential indicated good stability and
durability of the PtAu/rGO electrode.
T2  - Catalysis
T1  - PtAu Nanoparticles Supported by Reduced Graphene Oxide as a Highly Active Catalyst for Hydrogen Evolution
VL  - 12
IS  - 43
SP  - 2
EP  - 13
DO  - 10.3390/catal12010043
ER  - 

@article{
author = "Rakočević, Lazar and Stojković Simatović, Ivana and Maksić, Aleksandar and Rajić, Vladimir and Štrbac, Svetlana and Srejić, Irina",
year = "2022",
abstract = "PtAu nanoparticles spontaneously deposited on graphene support, PtAu/rGO, have shown
remarkably high catalytic activity for hydrogen evolution reaction (HER) in sulfuric acid solution.
SEM images of the PtAu/rGO electrode surface showed that Pt nanoparticles that are non-uniform
in size occupy both the edges of previously deposited uniform Au nanoparticles and the edges of
graphene support. XPS analysis showed that the atomic percentages of Au and Pt in PtAu/rGO were
0.6% and 0.3%, respectively. The atomic percentage of Au alone on previously prepared Au/rGO
was 0.7%. Outstanding HER activity was achieved for the PtAu/rGO electrode, showing the initial
potential close to the equilibrium potential for HER and a low Tafel slope of −38 mV/dec. This
was confirmed by electrochemical impedance spectroscopy. The chronoamperometric measurement
performed for 40 min for hydrogen evolution at a constant potential indicated good stability and
durability of the PtAu/rGO electrode.",
journal = "Catalysis",
title = "PtAu Nanoparticles Supported by Reduced Graphene Oxide as a Highly Active Catalyst for Hydrogen Evolution",
volume = "12",
number = "43",
pages = "2-13",
doi = "10.3390/catal12010043"
}

Rakočević, L., Stojković Simatović, I., Maksić, A., Rajić, V., Štrbac, S.,& Srejić, I.. (2022). PtAu Nanoparticles Supported by Reduced Graphene Oxide as a Highly Active Catalyst for Hydrogen Evolution. in Catalysis, 12(43), 2-13.
https://doi.org/10.3390/catal12010043

Rakočević L, Stojković Simatović I, Maksić A, Rajić V, Štrbac S, Srejić I. PtAu Nanoparticles Supported by Reduced Graphene Oxide as a Highly Active Catalyst for Hydrogen Evolution. in Catalysis. 2022;12(43):2-13.
doi:10.3390/catal12010043 .

Rakočević, Lazar, Stojković Simatović, Ivana, Maksić, Aleksandar, Rajić, Vladimir, Štrbac, Svetlana, Srejić, Irina, "PtAu Nanoparticles Supported by Reduced Graphene Oxide as a Highly Active Catalyst for Hydrogen Evolution" in Catalysis, 12, no. 43 (2022):2-13,
https://doi.org/10.3390/catal12010043 . .

TY  - JOUR
AU  - Rakočević, Lazar
AU  - Srejić, Irina
AU  - Maksić, Aleksandar
AU  - Golubović, Jelena
AU  - Štrbac, Svetlana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4566
AB  - Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.
PB  - MDPI
T2  - Catalysis
T1  - Hydrogen evolution on reduced graphene oxide-supported PdAu nanoparticles
VL  - 11
IS  - 4
SP  - 481
DO  - 10.3390/catal11040481
ER  - 

@article{
author = "Rakočević, Lazar and Srejić, Irina and Maksić, Aleksandar and Golubović, Jelena and Štrbac, Svetlana",
year = "2021",
abstract = "Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.",
publisher = "MDPI",
journal = "Catalysis",
title = "Hydrogen evolution on reduced graphene oxide-supported PdAu nanoparticles",
volume = "11",
number = "4",
pages = "481",
doi = "10.3390/catal11040481"
}

Rakočević, L., Srejić, I., Maksić, A., Golubović, J.,& Štrbac, S.. (2021). Hydrogen evolution on reduced graphene oxide-supported PdAu nanoparticles. in Catalysis
MDPI., 11(4), 481.
https://doi.org/10.3390/catal11040481

Rakočević L, Srejić I, Maksić A, Golubović J, Štrbac S. Hydrogen evolution on reduced graphene oxide-supported PdAu nanoparticles. in Catalysis. 2021;11(4):481.
doi:10.3390/catal11040481 .

Rakočević, Lazar, Srejić, Irina, Maksić, Aleksandar, Golubović, Jelena, Štrbac, Svetlana, "Hydrogen evolution on reduced graphene oxide-supported PdAu nanoparticles" in Catalysis, 11, no. 4 (2021):481,
https://doi.org/10.3390/catal11040481 . .

TY  - JOUR
AU  - Maksic, A
AU  - Smiljanić, Milutin
AU  - Miljanic, S
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1852
AB  - Bimetallic electrodes prepared by Rh nanoislands spontaneously deposited on polycrystalline palladium, Pd(poly), at submonolayer coverage were explored for ethanol oxidation in alkaline media. Characterization of obtained Rh/Pd(poly) nanostructures was performed ex situ by AFM imaging and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent ethanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Palladium surface with 50% Rh coverage exhibited the highest catalytic activity for ethanol oxidation in alkaline media. The origin of the enhanced catalysis of Rh/Pd(poly) surfaces with respect to bare Pd was explained by the electronic effect. Possible reaction pathways for ethanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and acetaldehyde, as the most probable reaction intermediates.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Electrochimica Acta
T1  - Ethanol Oxidation on Rh/Pd(poly) in Alkaline Solution
VL  - 209
SP  - 323
EP  - 331
DO  - 10.1016/j.electacta.2016.05.096
ER  - 

@article{
author = "Maksic, A and Smiljanić, Milutin and Miljanic, S and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2016",
abstract = "Bimetallic electrodes prepared by Rh nanoislands spontaneously deposited on polycrystalline palladium, Pd(poly), at submonolayer coverage were explored for ethanol oxidation in alkaline media. Characterization of obtained Rh/Pd(poly) nanostructures was performed ex situ by AFM imaging and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent ethanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Palladium surface with 50% Rh coverage exhibited the highest catalytic activity for ethanol oxidation in alkaline media. The origin of the enhanced catalysis of Rh/Pd(poly) surfaces with respect to bare Pd was explained by the electronic effect. Possible reaction pathways for ethanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and acetaldehyde, as the most probable reaction intermediates.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Electrochimica Acta",
title = "Ethanol Oxidation on Rh/Pd(poly) in Alkaline Solution",
volume = "209",
pages = "323-331",
doi = "10.1016/j.electacta.2016.05.096"
}

Maksic, A., Smiljanić, M., Miljanic, S., Rakočević, Z. Lj.,& Štrbac, S.. (2016). Ethanol Oxidation on Rh/Pd(poly) in Alkaline Solution. in Electrochimica Acta
Oxford : Pergamon-Elsevier Science Ltd., 209, 323-331.
https://doi.org/10.1016/j.electacta.2016.05.096

Maksic A, Smiljanić M, Miljanic S, Rakočević ZL, Štrbac S. Ethanol Oxidation on Rh/Pd(poly) in Alkaline Solution. in Electrochimica Acta. 2016;209:323-331.
doi:10.1016/j.electacta.2016.05.096 .

Maksic, A, Smiljanić, Milutin, Miljanic, S, Rakočević, Zlatko Lj., Štrbac, Svetlana, "Ethanol Oxidation on Rh/Pd(poly) in Alkaline Solution" in Electrochimica Acta, 209 (2016):323-331,
https://doi.org/10.1016/j.electacta.2016.05.096 . .

TY  - JOUR
AU  - Maksic, A
AU  - Rakočević, Zlatko Lj.
AU  - Smiljanić, Milutin
AU  - Nenadović, Miloš
AU  - Štrbac, Svetlana
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1754
AB  - Bimetallic electrodes prepared by Pd nanoislands spontaneously deposited on polycrystalline platinum, Pt(poly), at submonolayer coverage were explored for methanol oxidation in alkaline media. Characterization of obtained Pd/Pt(poly) nanostructures was performed ex situ by AFM imaging, spectroscopic ellipsometry and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent methanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Platinum surface with 35% Pd coverage exhibited the highest catalytic activity for methanol oxidation in alkaline media, exceeding those of bare Pt and Pd. Both synergistic and electronic effects are responsible for such enhanced catalysis. The origin of the synergistic effect and possible reaction pathways for methanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and formaldehyde, as the most probable reaction intermediates.
PB  - Elsevier
T2  - Journal of Power Sources
T1  - Methanol oxidation on Pd/Pt(poly) in alkaline solution
VL  - 273
SP  - 724
EP  - 734
DO  - 10.1016/j.jpowsour.2014.09.138
ER  - 

@article{
author = "Maksic, A and Rakočević, Zlatko Lj. and Smiljanić, Milutin and Nenadović, Miloš and Štrbac, Svetlana",
year = "2015",
abstract = "Bimetallic electrodes prepared by Pd nanoislands spontaneously deposited on polycrystalline platinum, Pt(poly), at submonolayer coverage were explored for methanol oxidation in alkaline media. Characterization of obtained Pd/Pt(poly) nanostructures was performed ex situ by AFM imaging, spectroscopic ellipsometry and by X-ray photoelectron spectroscopy. In situ characterization of the obtained electrodes and subsequent methanol oxidation measurements were performed by cyclic voltammetry in 0.1 M KOH. Platinum surface with 35% Pd coverage exhibited the highest catalytic activity for methanol oxidation in alkaline media, exceeding those of bare Pt and Pd. Both synergistic and electronic effects are responsible for such enhanced catalysis. The origin of the synergistic effect and possible reaction pathways for methanol oxidation were discussed taking into account the activity of obtained bimetallic electrodes for the oxidation of CO and formaldehyde, as the most probable reaction intermediates.",
publisher = "Elsevier",
journal = "Journal of Power Sources",
title = "Methanol oxidation on Pd/Pt(poly) in alkaline solution",
volume = "273",
pages = "724-734",
doi = "10.1016/j.jpowsour.2014.09.138"
}

Maksic, A., Rakočević, Z. Lj., Smiljanić, M., Nenadović, M.,& Štrbac, S.. (2015). Methanol oxidation on Pd/Pt(poly) in alkaline solution. in Journal of Power Sources
Elsevier., 273, 724-734.
https://doi.org/10.1016/j.jpowsour.2014.09.138

Maksic A, Rakočević ZL, Smiljanić M, Nenadović M, Štrbac S. Methanol oxidation on Pd/Pt(poly) in alkaline solution. in Journal of Power Sources. 2015;273:724-734.
doi:10.1016/j.jpowsour.2014.09.138 .

Maksic, A, Rakočević, Zlatko Lj., Smiljanić, Milutin, Nenadović, Miloš, Štrbac, Svetlana, "Methanol oxidation on Pd/Pt(poly) in alkaline solution" in Journal of Power Sources, 273 (2015):724-734,
https://doi.org/10.1016/j.jpowsour.2014.09.138 . .

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Rakočević, Zlatko Lj.
AU  - Maksic, A.
AU  - Štrbac, Svetlana
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1548
AB  - Pd/Pt(poly) and Rh/Pt(poly) bimetallic electrodes prepared by spontaneous deposition of Pd and Rh nanoislands on Pt(poly) at submonolayer coverage were explored as catalysts for hydrogen evolution reaction (HER) in alkaline media. Characterization of bimetallic surfaces was performed ex situ by height and phase AFM imaging and in situ by cyclic voltammetry. HER was investigated by linear sweep voltammetry in 0.1 M NaOH. Both Pd/Pt(poly) and Rh/Pt(poly) surfaces exhibited an enhanced catalysis for HER with respect to bare Pt(poly), which is explained by a strong synergistic electronic effect of platinum substrate on the deposited Pd or Rh nanoislands. This electronic effect leads to the lowering of a binding energy of adsorbed hydrogen intermediate and consequently to the lowering of the overpotential for HER.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Electrochimica Acta
T1  - Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands
VL  - 117
SP  - 336
EP  - 343
DO  - 10.1016/j.electacta.2013.11.142
ER  - 

@article{
author = "Smiljanić, Milutin and Rakočević, Zlatko Lj. and Maksic, A. and Štrbac, Svetlana",
year = "2014",
abstract = "Pd/Pt(poly) and Rh/Pt(poly) bimetallic electrodes prepared by spontaneous deposition of Pd and Rh nanoislands on Pt(poly) at submonolayer coverage were explored as catalysts for hydrogen evolution reaction (HER) in alkaline media. Characterization of bimetallic surfaces was performed ex situ by height and phase AFM imaging and in situ by cyclic voltammetry. HER was investigated by linear sweep voltammetry in 0.1 M NaOH. Both Pd/Pt(poly) and Rh/Pt(poly) surfaces exhibited an enhanced catalysis for HER with respect to bare Pt(poly), which is explained by a strong synergistic electronic effect of platinum substrate on the deposited Pd or Rh nanoislands. This electronic effect leads to the lowering of a binding energy of adsorbed hydrogen intermediate and consequently to the lowering of the overpotential for HER.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Electrochimica Acta",
title = "Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands",
volume = "117",
pages = "336-343",
doi = "10.1016/j.electacta.2013.11.142"
}

Smiljanić, M., Rakočević, Z. Lj., Maksic, A.,& Štrbac, S.. (2014). Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands. in Electrochimica Acta
Oxford : Pergamon-Elsevier Science Ltd., 117, 336-343.
https://doi.org/10.1016/j.electacta.2013.11.142

Smiljanić M, Rakočević ZL, Maksic A, Štrbac S. Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands. in Electrochimica Acta. 2014;117:336-343.
doi:10.1016/j.electacta.2013.11.142 .

Smiljanić, Milutin, Rakočević, Zlatko Lj., Maksic, A., Štrbac, Svetlana, "Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands" in Electrochimica Acta, 117 (2014):336-343,
https://doi.org/10.1016/j.electacta.2013.11.142 . .