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  - Golubović, Jelena
AU  - Srejić, Irina
AU  - Štrbac, Svetlana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7472
AB  - PdAu/GC nanoparticles obtained by the electrochemical deposition of gold followed by the spontaneous palladium deposition show a remarkable catalytic activity for the oxygen reduction reaction (ORR) in perchloric acid solution. AFM images reveal the size, shape, and coverage of the GC electrode with Au and PdAu nanoislands. Au/GC electrode with the full GC coverage by the deposited gold islands and activated by potential cycling shows the highest ORR activity. The initial potential for ORR shifts positively for 200 mV compared to polycrystalline gold. With the addition of palladium, the activity for ORR enhances significantly. For the most active PdAu/GC electrode, the initial potential shifts positively for another 250 mV, which coincides with polycrystalline palladium.
PB  - Elsevier
T2  - International Journal of Electrochemical Science
T1  - Oxygen Reduction on Glassy Carbon-Supported PdAu Nanoparticles in Perchloric Acid Solution
VL  - 16
IS  - 8
SP  - 210818
DO  - 10.20964/2021.08.01
ER  - 

@article{
author = "Golubović, Jelena and Srejić, Irina and Štrbac, Svetlana",
year = "2021",
abstract = "PdAu/GC nanoparticles obtained by the electrochemical deposition of gold followed by the spontaneous palladium deposition show a remarkable catalytic activity for the oxygen reduction reaction (ORR) in perchloric acid solution. AFM images reveal the size, shape, and coverage of the GC electrode with Au and PdAu nanoislands. Au/GC electrode with the full GC coverage by the deposited gold islands and activated by potential cycling shows the highest ORR activity. The initial potential for ORR shifts positively for 200 mV compared to polycrystalline gold. With the addition of palladium, the activity for ORR enhances significantly. For the most active PdAu/GC electrode, the initial potential shifts positively for another 250 mV, which coincides with polycrystalline palladium.",
publisher = "Elsevier",
journal = "International Journal of Electrochemical Science",
title = "Oxygen Reduction on Glassy Carbon-Supported PdAu Nanoparticles in Perchloric Acid Solution",
volume = "16",
number = "8",
pages = "210818",
doi = "10.20964/2021.08.01"
}

Golubović, J., Srejić, I.,& Štrbac, S.. (2021). Oxygen Reduction on Glassy Carbon-Supported PdAu Nanoparticles in Perchloric Acid Solution. in International Journal of Electrochemical Science
Elsevier., 16(8), 210818.
https://doi.org/10.20964/2021.08.01

Golubović J, Srejić I, Štrbac S. Oxygen Reduction on Glassy Carbon-Supported PdAu Nanoparticles in Perchloric Acid Solution. in International Journal of Electrochemical Science. 2021;16(8):210818.
doi:10.20964/2021.08.01 .

Golubović, Jelena, Srejić, Irina, Štrbac, Svetlana, "Oxygen Reduction on Glassy Carbon-Supported PdAu Nanoparticles in Perchloric Acid Solution" in International Journal of Electrochemical Science, 16, no. 8 (2021):210818,
https://doi.org/10.20964/2021.08.01 . .

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  - Rakočević, Lazar
AU  - Štrbac, Svetlana
AU  - Srejić, Irina
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4225
AB  - HER was examined on various glassy carbon-supported Au and PdAu electrodes in acid solution. The Au/GC electrodes were obtained after Au was electrodeposited on a GC substrate by holding the potential for various times in 0.5 M H2SO4 solution containing AuCl4− ions. PdAu/GC electrodes were obtained after Pd has been added by a spontaneous deposition on previously prepared Au/GC electrodes. Surface morphology and chemical analysis of Au/GC and PdAu/GC electrodes were performed by atomic force microscopy and X-ray photoemission spectroscopy. Electrochemical characterization was performed by cyclic voltammetry in 0.5 M H2SO4 solution, while the linear sweep voltammetry was used to gain insight into the electrocatalytic activity of these electrodes for HER. 30minPd/10minAu/GC electrode consisting of 48% Pd and 65% Au, with the total coverage of the GC substrate with PdAu islands of 70%, showed the best catalytic activity for HER. A remarkable high activity and stability of this electrode makes it a promising catalyst for HER in acid solution.
PB  - Elsevier
T2  - International Journal of Hydrogen Energy
T1  - Hydrogen evolution on Au/GC and PdAu/GC nanostructures in acid solution: AFM, XPS, and electrochemical study
VL  - 46
IS  - 13
SP  - 9052
EP  - 9063
DO  - 10.1016/j.ijhydene.2021.01.001
ER  - 

@article{
author = "Rakočević, Lazar and Štrbac, Svetlana and Srejić, Irina",
year = "2021",
abstract = "HER was examined on various glassy carbon-supported Au and PdAu electrodes in acid solution. The Au/GC electrodes were obtained after Au was electrodeposited on a GC substrate by holding the potential for various times in 0.5 M H2SO4 solution containing AuCl4− ions. PdAu/GC electrodes were obtained after Pd has been added by a spontaneous deposition on previously prepared Au/GC electrodes. Surface morphology and chemical analysis of Au/GC and PdAu/GC electrodes were performed by atomic force microscopy and X-ray photoemission spectroscopy. Electrochemical characterization was performed by cyclic voltammetry in 0.5 M H2SO4 solution, while the linear sweep voltammetry was used to gain insight into the electrocatalytic activity of these electrodes for HER. 30minPd/10minAu/GC electrode consisting of 48% Pd and 65% Au, with the total coverage of the GC substrate with PdAu islands of 70%, showed the best catalytic activity for HER. A remarkable high activity and stability of this electrode makes it a promising catalyst for HER in acid solution.",
publisher = "Elsevier",
journal = "International Journal of Hydrogen Energy",
title = "Hydrogen evolution on Au/GC and PdAu/GC nanostructures in acid solution: AFM, XPS, and electrochemical study",
volume = "46",
number = "13",
pages = "9052-9063",
doi = "10.1016/j.ijhydene.2021.01.001"
}

Rakočević, L., Štrbac, S.,& Srejić, I.. (2021). Hydrogen evolution on Au/GC and PdAu/GC nanostructures in acid solution: AFM, XPS, and electrochemical study. in International Journal of Hydrogen Energy
Elsevier., 46(13), 9052-9063.
https://doi.org/10.1016/j.ijhydene.2021.01.001

Rakočević L, Štrbac S, Srejić I. Hydrogen evolution on Au/GC and PdAu/GC nanostructures in acid solution: AFM, XPS, and electrochemical study. in International Journal of Hydrogen Energy. 2021;46(13):9052-9063.
doi:10.1016/j.ijhydene.2021.01.001 .

Rakočević, Lazar, Štrbac, Svetlana, Srejić, Irina, "Hydrogen evolution on Au/GC and PdAu/GC nanostructures in acid solution: AFM, XPS, and electrochemical study" in International Journal of Hydrogen Energy, 46, no. 13 (2021):9052-9063,
https://doi.org/10.1016/j.ijhydene.2021.01.001 . .

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Srejić, Irina
AU  - Potočnik, Jelena
AU  - Mitric, Miodrag
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2352
AB  - Hydrogen evolution reaction (HER) was explored on tri-metallic Rh"Pd/Au(poly) and bimetallic Pd/Au(poly) and Rh/Au(poly) electrodes in alkaline solution. Electrodes were prepared by the spontaneous deposition of either Pd or Rh and by co-deposition of both Rh and Pd on polycrystalline gold electrode. Characterization of modified electrodes was performed by cyclic voltammetry in alkaline solution, while additional information about phase analysis, chemical composition and surface morphology of tai-metallic Rh"Pd/Au(poly) electrode were acquired using X-ray diffraction, X-ray photoelectron spectroscopy, field emission scanning electron microscopy and atomic force microscopy. Investigations of HER catalysis have shown that the activity of tri-metallic Rh Pd/Au(poly) electrode exceeds the activities of both Pd/Au(poly) and Rh/Au(poly) electrodes, meaning that the synergism between co-deposited Pd and Rh islands is achieved. Moreover, Rh"Pd/Au(poly) electrode showed significant approach to the activities of bulk Pd and Rh electrodes for HER, especially when taking into account low activity of bare Au substrate. Synergistic effect of co-deposited Pd and Rh islands is a consequence of the strong electronic interaction between three metals in a close contact, which promotes the activity for HER by lowering the adsorption energy of Hads intermediate.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - International Journal of Hydrogen Energy
T1  - Synergistic electrocatalytic effect of Pd and Rh nanoislands co-deposited on Au(poly) on HER in alkaline solution
VL  - 43
IS  - 42
SP  - 19420
EP  - 19431
DO  - 10.1016/j.ijhydene.2018.08.117
ER  - 

@article{
author = "Smiljanić, Milutin and Srejić, Irina and Potočnik, Jelena and Mitric, Miodrag and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2018",
abstract = "Hydrogen evolution reaction (HER) was explored on tri-metallic Rh"Pd/Au(poly) and bimetallic Pd/Au(poly) and Rh/Au(poly) electrodes in alkaline solution. Electrodes were prepared by the spontaneous deposition of either Pd or Rh and by co-deposition of both Rh and Pd on polycrystalline gold electrode. Characterization of modified electrodes was performed by cyclic voltammetry in alkaline solution, while additional information about phase analysis, chemical composition and surface morphology of tai-metallic Rh"Pd/Au(poly) electrode were acquired using X-ray diffraction, X-ray photoelectron spectroscopy, field emission scanning electron microscopy and atomic force microscopy. Investigations of HER catalysis have shown that the activity of tri-metallic Rh Pd/Au(poly) electrode exceeds the activities of both Pd/Au(poly) and Rh/Au(poly) electrodes, meaning that the synergism between co-deposited Pd and Rh islands is achieved. Moreover, Rh"Pd/Au(poly) electrode showed significant approach to the activities of bulk Pd and Rh electrodes for HER, especially when taking into account low activity of bare Au substrate. Synergistic effect of co-deposited Pd and Rh islands is a consequence of the strong electronic interaction between three metals in a close contact, which promotes the activity for HER by lowering the adsorption energy of Hads intermediate.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "International Journal of Hydrogen Energy",
title = "Synergistic electrocatalytic effect of Pd and Rh nanoislands co-deposited on Au(poly) on HER in alkaline solution",
volume = "43",
number = "42",
pages = "19420-19431",
doi = "10.1016/j.ijhydene.2018.08.117"
}

Smiljanić, M., Srejić, I., Potočnik, J., Mitric, M., Rakočević, Z. Lj.,& Štrbac, S.. (2018). Synergistic electrocatalytic effect of Pd and Rh nanoislands co-deposited on Au(poly) on HER in alkaline solution. in International Journal of Hydrogen Energy
Oxford : Pergamon-Elsevier Science Ltd., 43(42), 19420-19431.
https://doi.org/10.1016/j.ijhydene.2018.08.117

Smiljanić M, Srejić I, Potočnik J, Mitric M, Rakočević ZL, Štrbac S. Synergistic electrocatalytic effect of Pd and Rh nanoislands co-deposited on Au(poly) on HER in alkaline solution. in International Journal of Hydrogen Energy. 2018;43(42):19420-19431.
doi:10.1016/j.ijhydene.2018.08.117 .

Smiljanić, Milutin, Srejić, Irina, Potočnik, Jelena, Mitric, Miodrag, Rakočević, Zlatko Lj., Štrbac, Svetlana, "Synergistic electrocatalytic effect of Pd and Rh nanoislands co-deposited on Au(poly) on HER in alkaline solution" in International Journal of Hydrogen Energy, 43, no. 42 (2018):19420-19431,
https://doi.org/10.1016/j.ijhydene.2018.08.117 . .

TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Srejić, Irina
AU  - Rakočević, Zlatko Lj.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2355
AB  - Iridium nanoislands are spontaneously deposited on Au(111) from (1 mMIrCl(3) center dot xH(2)O + 0.5 MH2SO4) depositing solution. Atomic Force Microscopy images of the obtained Ir/Au(111) bimetallic surfaces show that gold surface is fully covered with nanosized Ir islands after only 3 min of deposition. X-Ray Photoelectron Spectroscopy analysis shows that the deposit consists of a mixture of adsorbed hydrated IrCl3 and to a lesser extent of Ir(OH)(3). Cyclic Voltammetry characterization in 0.5 M H2SO4 solution does not show clear Hupd region prior to hydrogen evolution reaction (HER). Linear Sweep Voltammetry measurements show pronounced catalysis of HER on Ir modified Au(111) surface compared to bare Au(111). With prolonged Ir deposition, the observed limited increasing activity for HER of Ir/Au(111) surfaces is in accordance with the limited Ir/Au(111) surface morphology changes.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution
VL  - 165
IS  - 15
SP  - J3335
EP  - J3341
DO  - 10.1149/2.0441815jes
ER  - 

@article{
author = "Štrbac, Svetlana and Srejić, Irina and Rakočević, Zlatko Lj.",
year = "2018",
abstract = "Iridium nanoislands are spontaneously deposited on Au(111) from (1 mMIrCl(3) center dot xH(2)O + 0.5 MH2SO4) depositing solution. Atomic Force Microscopy images of the obtained Ir/Au(111) bimetallic surfaces show that gold surface is fully covered with nanosized Ir islands after only 3 min of deposition. X-Ray Photoelectron Spectroscopy analysis shows that the deposit consists of a mixture of adsorbed hydrated IrCl3 and to a lesser extent of Ir(OH)(3). Cyclic Voltammetry characterization in 0.5 M H2SO4 solution does not show clear Hupd region prior to hydrogen evolution reaction (HER). Linear Sweep Voltammetry measurements show pronounced catalysis of HER on Ir modified Au(111) surface compared to bare Au(111). With prolonged Ir deposition, the observed limited increasing activity for HER of Ir/Au(111) surfaces is in accordance with the limited Ir/Au(111) surface morphology changes.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution",
volume = "165",
number = "15",
pages = "J3335-J3341",
doi = "10.1149/2.0441815jes"
}

Štrbac, S., Srejić, I.,& Rakočević, Z. Lj.. (2018). Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 165(15), J3335-J3341.
https://doi.org/10.1149/2.0441815jes

Štrbac S, Srejić I, Rakočević ZL. Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution. in Journal of the Electrochemical Society. 2018;165(15):J3335-J3341.
doi:10.1149/2.0441815jes .

Štrbac, Svetlana, Srejić, Irina, Rakočević, Zlatko Lj., "Electrocatalysis of Hydrogen Evolution Reaction on Au(111) by Spontaneously Deposited Iridium in Acid Solution" in Journal of the Electrochemical Society, 165, no. 15 (2018):J3335-J3341,
https://doi.org/10.1149/2.0441815jes . .

TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Srejić, Irina
AU  - Rakočević, Zlatko Lj.
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2189
AB  - Catalytic properties of electrochemically activated polycrystalline gold, Au(poly), modified by spontaneously deposited palladium nanoislands with the coverage below a monolayer were examined for the oxygen reduction reaction (ORR) in alkaline solution using the rotating disc electrode (RDE) technique. Atomic force microscopy (AFM) images have shown that the coverage of randomly distributed nanosized Pd islands ranged from 18% to 77%. Cyclic voltammetry characterization involved hydrogen adsorption/desorption on the deposited Pd islands, as well as their oxidation/reduction at more positive potentials. RDE measurements have shown that, although ORR on Au(poly) proceeds partly through 4e-reduction pathway, in the presence of Pd islands it turns completely to 4e-pathway, exceeding the activity of bare Pd(poly). Among different Pd/Au(poly) nanostructures, the ones with Pd coverage of 18% and 30% have shown the highest activity for ORR in alkaline solution.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Catalysis of oxygen reduction on electrochemically activated polycrystalline gold by Pd nanoislands in alkaline solution
VL  - 789
SP  - 76
EP  - 84
DO  - 10.1016/j.jelechem.2017.02.034
ER  - 

@article{
author = "Štrbac, Svetlana and Srejić, Irina and Rakočević, Zlatko Lj.",
year = "2017",
abstract = "Catalytic properties of electrochemically activated polycrystalline gold, Au(poly), modified by spontaneously deposited palladium nanoislands with the coverage below a monolayer were examined for the oxygen reduction reaction (ORR) in alkaline solution using the rotating disc electrode (RDE) technique. Atomic force microscopy (AFM) images have shown that the coverage of randomly distributed nanosized Pd islands ranged from 18% to 77%. Cyclic voltammetry characterization involved hydrogen adsorption/desorption on the deposited Pd islands, as well as their oxidation/reduction at more positive potentials. RDE measurements have shown that, although ORR on Au(poly) proceeds partly through 4e-reduction pathway, in the presence of Pd islands it turns completely to 4e-pathway, exceeding the activity of bare Pd(poly). Among different Pd/Au(poly) nanostructures, the ones with Pd coverage of 18% and 30% have shown the highest activity for ORR in alkaline solution.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Catalysis of oxygen reduction on electrochemically activated polycrystalline gold by Pd nanoislands in alkaline solution",
volume = "789",
pages = "76-84",
doi = "10.1016/j.jelechem.2017.02.034"
}

Štrbac, S., Srejić, I.,& Rakočević, Z. Lj.. (2017). Catalysis of oxygen reduction on electrochemically activated polycrystalline gold by Pd nanoislands in alkaline solution. in Journal of Electroanalytical Chemistry
Elsevier., 789, 76-84.
https://doi.org/10.1016/j.jelechem.2017.02.034

Štrbac S, Srejić I, Rakočević ZL. Catalysis of oxygen reduction on electrochemically activated polycrystalline gold by Pd nanoislands in alkaline solution. in Journal of Electroanalytical Chemistry. 2017;789:76-84.
doi:10.1016/j.jelechem.2017.02.034 .

Štrbac, Svetlana, Srejić, Irina, Rakočević, Zlatko Lj., "Catalysis of oxygen reduction on electrochemically activated polycrystalline gold by Pd nanoislands in alkaline solution" in Journal of Electroanalytical Chemistry, 789 (2017):76-84,
https://doi.org/10.1016/j.jelechem.2017.02.034 . .

TY  - JOUR
AU  - Srejić, Irina
AU  - Smiljanić, Milutin
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1907
AB  - Catalytic properties of polycrystalline gold, Au(poly), were examined for the oxygen reduction reaction in alkaline solution using the rotating disc electrode technique. On electrochemically prepared Au(poly), oxygen reduction proceeds partly through 4e-reaction pathway resembling the activity of bare Au(100) in alkaline solution. Electrochemical behavior of such Au(100)-like polycrystalline gold electrode was compared with bare Au(100) surface, as well as with stepped Au(210)=Au[2(100)x(110)] and Au(533)=Au[4(111)x(100)] surfaces. It is shown that polycrystalline gold electrode behaved in a similar manner as stepped Au[n(111)x(100)] surfaces, meaning that the enrichment in (111)x(100) steps, rather than in (100) orientation is responsible for a partial 4e-reaction pathway in alkaline solution.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution
VL  - 11
IS  - 12
SP  - 10436
EP  - 10448
DO  - 10.20964/2016.12.51
ER  - 

@article{
author = "Srejić, Irina and Smiljanić, Milutin and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2016",
abstract = "Catalytic properties of polycrystalline gold, Au(poly), were examined for the oxygen reduction reaction in alkaline solution using the rotating disc electrode technique. On electrochemically prepared Au(poly), oxygen reduction proceeds partly through 4e-reaction pathway resembling the activity of bare Au(100) in alkaline solution. Electrochemical behavior of such Au(100)-like polycrystalline gold electrode was compared with bare Au(100) surface, as well as with stepped Au(210)=Au[2(100)x(110)] and Au(533)=Au[4(111)x(100)] surfaces. It is shown that polycrystalline gold electrode behaved in a similar manner as stepped Au[n(111)x(100)] surfaces, meaning that the enrichment in (111)x(100) steps, rather than in (100) orientation is responsible for a partial 4e-reaction pathway in alkaline solution.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution",
volume = "11",
number = "12",
pages = "10436-10448",
doi = "10.20964/2016.12.51"
}

Srejić, I., Smiljanić, M., Rakočević, Z. Lj.,& Štrbac, S.. (2016). Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution. in International Journal of Electrochemical Science
Esg, Belgrade., 11(12), 10436-10448.
https://doi.org/10.20964/2016.12.51

Srejić I, Smiljanić M, Rakočević ZL, Štrbac S. Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution. in International Journal of Electrochemical Science. 2016;11(12):10436-10448.
doi:10.20964/2016.12.51 .

Srejić, Irina, Smiljanić, Milutin, Rakočević, Zlatko Lj., Štrbac, Svetlana, "Oxygen Reduction on Au(100)-like Polycrystalline Gold Electrode in Alkaline Solution" in International Journal of Electrochemical Science, 11, no. 12 (2016):10436-10448,
https://doi.org/10.20964/2016.12.51 . .

TY  - JOUR
AU  - Srejić, Irina
AU  - Rakočević, Zlatko Lj.
AU  - Nenadović, Miloš
AU  - Štrbac, Svetlana
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1642
AB  - Oxygen reduction reaction (ORR) was investigated on polycrystalline palladium, Pd(poly), in acid and alkaline solutions using rotating-disc electrode technique. Pd(poly) was prepared in non-aqueous media which provided surface with good quality and reproducibility. According to cyclic voltammetry curves and to the analysis of polarization curves for ORR and of ones obtained separately for hydrogen peroxide reduction/oxidation reactions, ORR in both media proceeds mainly through 4e-series pathway in the potential regions where Pd surface is either oxide free or oxidized to PdOH. ORR occurs partly through 2e-reduction in the potential region where PdO is present on the surface. As revealed by cyclic voltammetry, spectroscopic ellipsometry and by atomic force microscopy, Pd(poly) surface undergoes both topography and chemical changes during ORR. Pd surface roughness as well as the degree of its oxidation increase during ORR.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Electrochimica Acta
T1  - Oxygen reduction on polycrystalline palladium in acid and alkaline solutions: topographical and chemical Pd surface changes
VL  - 169
SP  - 22
EP  - 31
DO  - 10.1016/j.electacta.2015.04.032
ER  - 

@article{
author = "Srejić, Irina and Rakočević, Zlatko Lj. and Nenadović, Miloš and Štrbac, Svetlana",
year = "2015",
abstract = "Oxygen reduction reaction (ORR) was investigated on polycrystalline palladium, Pd(poly), in acid and alkaline solutions using rotating-disc electrode technique. Pd(poly) was prepared in non-aqueous media which provided surface with good quality and reproducibility. According to cyclic voltammetry curves and to the analysis of polarization curves for ORR and of ones obtained separately for hydrogen peroxide reduction/oxidation reactions, ORR in both media proceeds mainly through 4e-series pathway in the potential regions where Pd surface is either oxide free or oxidized to PdOH. ORR occurs partly through 2e-reduction in the potential region where PdO is present on the surface. As revealed by cyclic voltammetry, spectroscopic ellipsometry and by atomic force microscopy, Pd(poly) surface undergoes both topography and chemical changes during ORR. Pd surface roughness as well as the degree of its oxidation increase during ORR.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Electrochimica Acta",
title = "Oxygen reduction on polycrystalline palladium in acid and alkaline solutions: topographical and chemical Pd surface changes",
volume = "169",
pages = "22-31",
doi = "10.1016/j.electacta.2015.04.032"
}

Srejić, I., Rakočević, Z. Lj., Nenadović, M.,& Štrbac, S.. (2015). Oxygen reduction on polycrystalline palladium in acid and alkaline solutions: topographical and chemical Pd surface changes. in Electrochimica Acta
Oxford : Pergamon-Elsevier Science Ltd., 169, 22-31.
https://doi.org/10.1016/j.electacta.2015.04.032

Srejić I, Rakočević ZL, Nenadović M, Štrbac S. Oxygen reduction on polycrystalline palladium in acid and alkaline solutions: topographical and chemical Pd surface changes. in Electrochimica Acta. 2015;169:22-31.
doi:10.1016/j.electacta.2015.04.032 .

Srejić, Irina, Rakočević, Zlatko Lj., Nenadović, Miloš, Štrbac, Svetlana, "Oxygen reduction on polycrystalline palladium in acid and alkaline solutions: topographical and chemical Pd surface changes" in Electrochimica Acta, 169 (2015):22-31,
https://doi.org/10.1016/j.electacta.2015.04.032 . .

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Srejić, Irina
AU  - Grgur, Branimir N.
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1280
AB  - Hydrogen evolution reaction (HER) was studied on Pd/Au(1 1 1) bimetallic surfaces in alkaline solution. Au(1 1 1) was modified by palladium nanoislands spontaneously deposited using PdSO4 center dot 2H(2)O and PdCl2 salts. As revealed from both surface topography Atomic Force Microscopy (AFM) and phase AFM images, for the same deposition conditions, the obtained Pd/Au(1 1 1) nanostructures differ depending on the counter anion in the depositing palladium salt. These differences are reflected on their catalytic activity toward HER, which occurs between the potentials for pure consisting metals. HER proceeded with the same mechanism, but it is shifted to more positive potentials for Pd/Au(1 1 1) nanostructures obtained using PdCl2 salt with respect to ones obtained using PdSO4 salt. Better catalytic activity of Pd/Au(1 1 1) nanostructures obtained using PdCl2 salt can be explained by their surface structure consisting of smaller and thinner Pd nanoislands, preferentially deposited at steps, which provides more Pd and Pd/Au sites suitable for hydrogen evolution reaction.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Electrochimica Acta
T1  - Catalysis of hydrogen evolution on different Pd/Au(111) nanostructures in alkaline solution
VL  - 88
SP  - 589
EP  - 596
DO  - 10.1016/j.electacta.2012.10.128
ER  - 

@article{
author = "Smiljanić, Milutin and Srejić, Irina and Grgur, Branimir N. and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2013",
abstract = "Hydrogen evolution reaction (HER) was studied on Pd/Au(1 1 1) bimetallic surfaces in alkaline solution. Au(1 1 1) was modified by palladium nanoislands spontaneously deposited using PdSO4 center dot 2H(2)O and PdCl2 salts. As revealed from both surface topography Atomic Force Microscopy (AFM) and phase AFM images, for the same deposition conditions, the obtained Pd/Au(1 1 1) nanostructures differ depending on the counter anion in the depositing palladium salt. These differences are reflected on their catalytic activity toward HER, which occurs between the potentials for pure consisting metals. HER proceeded with the same mechanism, but it is shifted to more positive potentials for Pd/Au(1 1 1) nanostructures obtained using PdCl2 salt with respect to ones obtained using PdSO4 salt. Better catalytic activity of Pd/Au(1 1 1) nanostructures obtained using PdCl2 salt can be explained by their surface structure consisting of smaller and thinner Pd nanoislands, preferentially deposited at steps, which provides more Pd and Pd/Au sites suitable for hydrogen evolution reaction.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Electrochimica Acta",
title = "Catalysis of hydrogen evolution on different Pd/Au(111) nanostructures in alkaline solution",
volume = "88",
pages = "589-596",
doi = "10.1016/j.electacta.2012.10.128"
}

Smiljanić, M., Srejić, I., Grgur, B. N., Rakočević, Z. Lj.,& Štrbac, S.. (2013). Catalysis of hydrogen evolution on different Pd/Au(111) nanostructures in alkaline solution. in Electrochimica Acta
Oxford : Pergamon-Elsevier Science Ltd., 88, 589-596.
https://doi.org/10.1016/j.electacta.2012.10.128

Smiljanić M, Srejić I, Grgur BN, Rakočević ZL, Štrbac S. Catalysis of hydrogen evolution on different Pd/Au(111) nanostructures in alkaline solution. in Electrochimica Acta. 2013;88:589-596.
doi:10.1016/j.electacta.2012.10.128 .

Smiljanić, Milutin, Srejić, Irina, Grgur, Branimir N., Rakočević, Zlatko Lj., Štrbac, Svetlana, "Catalysis of hydrogen evolution on different Pd/Au(111) nanostructures in alkaline solution" in Electrochimica Acta, 88 (2013):589-596,
https://doi.org/10.1016/j.electacta.2012.10.128 . .

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Srejić, Irina
AU  - Grgur, Branimir N.
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1287
AB  - Pronounced catalysis of hydrogen evolution reaction (HER) by rhodium nanoislands spontaneously deposited on Au(111) has been observed. Different Rh/Au(111) nanostructures were characterized ex situ by both height and phase imaging AFM. The most pronounced catalytic activity for HER in 0.5 M H2SO4 was obtained for 50% Rh coverage. This is ascribed to the suitable size of Rh nanoislands and to the electronic modification of Rh deposit by Au(111) substrate.
PB  - Elsevier Science Inc, New York
T2  - Electrochemistry Communications
T1  - Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands
VL  - 28
SP  - 37
EP  - 39
DO  - 10.1016/j.elecom.2012.12.009
ER  - 

@article{
author = "Smiljanić, Milutin and Srejić, Irina and Grgur, Branimir N. and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2013",
abstract = "Pronounced catalysis of hydrogen evolution reaction (HER) by rhodium nanoislands spontaneously deposited on Au(111) has been observed. Different Rh/Au(111) nanostructures were characterized ex situ by both height and phase imaging AFM. The most pronounced catalytic activity for HER in 0.5 M H2SO4 was obtained for 50% Rh coverage. This is ascribed to the suitable size of Rh nanoislands and to the electronic modification of Rh deposit by Au(111) substrate.",
publisher = "Elsevier Science Inc, New York",
journal = "Electrochemistry Communications",
title = "Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands",
volume = "28",
pages = "37-39",
doi = "10.1016/j.elecom.2012.12.009"
}

Smiljanić, M., Srejić, I., Grgur, B. N., Rakočević, Z. Lj.,& Štrbac, S.. (2013). Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands. in Electrochemistry Communications
Elsevier Science Inc, New York., 28, 37-39.
https://doi.org/10.1016/j.elecom.2012.12.009

Smiljanić M, Srejić I, Grgur BN, Rakočević ZL, Štrbac S. Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands. in Electrochemistry Communications. 2013;28:37-39.
doi:10.1016/j.elecom.2012.12.009 .

Smiljanić, Milutin, Srejić, Irina, Grgur, Branimir N., Rakočević, Zlatko Lj., Štrbac, Svetlana, "Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands" in Electrochemistry Communications, 28 (2013):37-39,
https://doi.org/10.1016/j.elecom.2012.12.009 . .

TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Srejić, Irina
AU  - Smiljanić, Milutin
AU  - Rakočević, Zlatko Lj.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1187
AB  - The effect of spontaneously deposited rhodium nanoislands on the electrocatalytic activity of polycrystalline gold, Au(poly), for oxygen reduction reaction (ORR) was studied using rotating disc electrode technique in 0.1 M HClO4 solution. Surface topography atomic force microscopy (AFM) images of obtained Rh/Au(poly) surfaces revealed that both the size and coverage of rhodium nanoislands increase with the deposition time, for a given depositing conditions. The exact values of rhodium coverage ranging from 50% to the full coverage, and the qualitative changes in the surface chemical composition with respect to bare gold were estimated from phase AFM images. Deposited Rh was also identified by the changes in cyclic voltammetry (CV) profiles from which potential limits for ORR were determined. Obtained Rh/Au(poly) surfaces have shown a significant shift of the initial potential for ORR to the more positive potentials with respect to pure gold already for 50% Rh coverage, indicating that a pronounced electronic effect is responsible for the lowering of the activation energy for oxygen adsorption. The initial potential increases only slightly with the further increase of Rh coverage. Reaction pathway changes from 2e- reduction at lower overpotentials to a partial 4e- reduction at higher overpotentials. The later is attributed to the increased activity of obtained Rh/Au(poly) surfaces towards hydrogen peroxide reduction (HPRR), which appear as an intermediate during ORR. The fraction of 4e- reduction slightly increases with the increase of Rh coverage.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - The effect of rhodium nanoislands on the electrocatalytic activity of gold for oxygen reduction in perchloric acid solution
VL  - 704
SP  - 24
EP  - 31
DO  - 10.1016/j.jelechem.2013.06.003
ER  - 

@article{
author = "Štrbac, Svetlana and Srejić, Irina and Smiljanić, Milutin and Rakočević, Zlatko Lj.",
year = "2013",
abstract = "The effect of spontaneously deposited rhodium nanoislands on the electrocatalytic activity of polycrystalline gold, Au(poly), for oxygen reduction reaction (ORR) was studied using rotating disc electrode technique in 0.1 M HClO4 solution. Surface topography atomic force microscopy (AFM) images of obtained Rh/Au(poly) surfaces revealed that both the size and coverage of rhodium nanoislands increase with the deposition time, for a given depositing conditions. The exact values of rhodium coverage ranging from 50% to the full coverage, and the qualitative changes in the surface chemical composition with respect to bare gold were estimated from phase AFM images. Deposited Rh was also identified by the changes in cyclic voltammetry (CV) profiles from which potential limits for ORR were determined. Obtained Rh/Au(poly) surfaces have shown a significant shift of the initial potential for ORR to the more positive potentials with respect to pure gold already for 50% Rh coverage, indicating that a pronounced electronic effect is responsible for the lowering of the activation energy for oxygen adsorption. The initial potential increases only slightly with the further increase of Rh coverage. Reaction pathway changes from 2e- reduction at lower overpotentials to a partial 4e- reduction at higher overpotentials. The later is attributed to the increased activity of obtained Rh/Au(poly) surfaces towards hydrogen peroxide reduction (HPRR), which appear as an intermediate during ORR. The fraction of 4e- reduction slightly increases with the increase of Rh coverage.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "The effect of rhodium nanoislands on the electrocatalytic activity of gold for oxygen reduction in perchloric acid solution",
volume = "704",
pages = "24-31",
doi = "10.1016/j.jelechem.2013.06.003"
}

Štrbac, S., Srejić, I., Smiljanić, M.,& Rakočević, Z. Lj.. (2013). The effect of rhodium nanoislands on the electrocatalytic activity of gold for oxygen reduction in perchloric acid solution. in Journal of Electroanalytical Chemistry
Elsevier., 704, 24-31.
https://doi.org/10.1016/j.jelechem.2013.06.003

Štrbac S, Srejić I, Smiljanić M, Rakočević ZL. The effect of rhodium nanoislands on the electrocatalytic activity of gold for oxygen reduction in perchloric acid solution. in Journal of Electroanalytical Chemistry. 2013;704:24-31.
doi:10.1016/j.jelechem.2013.06.003 .

Štrbac, Svetlana, Srejić, Irina, Smiljanić, Milutin, Rakočević, Zlatko Lj., "The effect of rhodium nanoislands on the electrocatalytic activity of gold for oxygen reduction in perchloric acid solution" in Journal of Electroanalytical Chemistry, 704 (2013):24-31,
https://doi.org/10.1016/j.jelechem.2013.06.003 . .

TY  - JOUR
AU  - Srejić, Irina
AU  - Smiljanić, Milutin
AU  - Grgur, Branimir N.
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1015
AB  - Oxygen reduction reaction (ORR) was studied on polycrystalline gold, Au(poly), modified by nanosized palladium islands in 0.1 M HClO4 solution using rotating disc electrode technique. Paladium was spontaneously deposited from 1 mM PdSO4 center dot 2H(2)O + 0.5 M H2SO4 solution for various deposition times at a submonolayer coverage. Topography of obtained Pd/Au(poly) surfaces was observed by tapping mode atomic force microscopy (AFM), while chemical surface composition changes were detected by simultaneously performed phase AFM. Deposited Pd islands were nonuniform in size and randomly distributed over the gold substrate. Size and number of Pd islands increase with the increase of the deposition time, and consequently surface coverage increases too. Deposited Pd was also identified by the changes in cyclic voltammetry (CV) profiles from which an active surface area was estimated. Obtained Pd/Au(poly) surfaces have shown a significant catalytic activity towards oxygen reduction reaction which increases with the increase of Pd islands coverage. The initial potential of ORR was shifted positively, while reaction pathway changes from 2e-reduction on pure gold to 4e-reduction on Pd modified gold. Additionally, obtained Pd/Au(poly) surfaces have shown a significant activity towards hydrogen peroxide reduction (HPRR), which appear as an intermediate during ORR. This supports the assumption that ORR on Pd/Au(poly) occurs partly through 4e-series reduction pathway, the fraction of which increases with the increase of Pd coverage.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Electrochimica Acta
T1  - Catalysis of oxygen reduction on Au modified by Pd nanoislands in perchloric acid solution
VL  - 64
SP  - 140
EP  - 146
DO  - 10.1016/j.electacta.2011.12.130
ER  - 

@article{
author = "Srejić, Irina and Smiljanić, Milutin and Grgur, Branimir N. and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2012",
abstract = "Oxygen reduction reaction (ORR) was studied on polycrystalline gold, Au(poly), modified by nanosized palladium islands in 0.1 M HClO4 solution using rotating disc electrode technique. Paladium was spontaneously deposited from 1 mM PdSO4 center dot 2H(2)O + 0.5 M H2SO4 solution for various deposition times at a submonolayer coverage. Topography of obtained Pd/Au(poly) surfaces was observed by tapping mode atomic force microscopy (AFM), while chemical surface composition changes were detected by simultaneously performed phase AFM. Deposited Pd islands were nonuniform in size and randomly distributed over the gold substrate. Size and number of Pd islands increase with the increase of the deposition time, and consequently surface coverage increases too. Deposited Pd was also identified by the changes in cyclic voltammetry (CV) profiles from which an active surface area was estimated. Obtained Pd/Au(poly) surfaces have shown a significant catalytic activity towards oxygen reduction reaction which increases with the increase of Pd islands coverage. The initial potential of ORR was shifted positively, while reaction pathway changes from 2e-reduction on pure gold to 4e-reduction on Pd modified gold. Additionally, obtained Pd/Au(poly) surfaces have shown a significant activity towards hydrogen peroxide reduction (HPRR), which appear as an intermediate during ORR. This supports the assumption that ORR on Pd/Au(poly) occurs partly through 4e-series reduction pathway, the fraction of which increases with the increase of Pd coverage.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Electrochimica Acta",
title = "Catalysis of oxygen reduction on Au modified by Pd nanoislands in perchloric acid solution",
volume = "64",
pages = "140-146",
doi = "10.1016/j.electacta.2011.12.130"
}

Srejić, I., Smiljanić, M., Grgur, B. N., Rakočević, Z. Lj.,& Štrbac, S.. (2012). Catalysis of oxygen reduction on Au modified by Pd nanoislands in perchloric acid solution. in Electrochimica Acta
Oxford : Pergamon-Elsevier Science Ltd., 64, 140-146.
https://doi.org/10.1016/j.electacta.2011.12.130

Srejić I, Smiljanić M, Grgur BN, Rakočević ZL, Štrbac S. Catalysis of oxygen reduction on Au modified by Pd nanoislands in perchloric acid solution. in Electrochimica Acta. 2012;64:140-146.
doi:10.1016/j.electacta.2011.12.130 .

Srejić, Irina, Smiljanić, Milutin, Grgur, Branimir N., Rakočević, Zlatko Lj., Štrbac, Svetlana, "Catalysis of oxygen reduction on Au modified by Pd nanoislands in perchloric acid solution" in Electrochimica Acta, 64 (2012):140-146,
https://doi.org/10.1016/j.electacta.2011.12.130 . .

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Srejić, Irina
AU  - Grgur, Branimir N.
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1059
AB  - Hydrogen evolution reaction was studied on Au(111) modified by palladium spontaneously deposited on the Au(111) surface from (1 mM PdSO4 center dot 2 H2O + 0.5 M H2SO4) solution at a submonolayer coverage. Number and size of Pd islands increased with the increase of the deposition time as observed by ex situ surface topography atomic force microscopy (AFM). The overall coverage of the underlying Au(111) surface by the deposited Pd islands was estimated from simultaneously acquired phase AFM images, which provided a clear contrast between different materials. The obtained Pd/Au(111) surfaces have shown a significant catalytic activity toward hydrogen evolution reaction in 0.5 M H2SO4 solution. This is discussed with respect to Pd islands size and coverage and to the influence of an electronic effect induced in Pd islands by the underlying Au(111) substrate.
PB  - Springer, New York
T2  - Electrocatalysis
T1  - Catalysis of Hydrogen Evolution on Au(111) Modified by Spontaneously Deposited Pd Nanoislands
VL  - 3
IS  - 3-4
SP  - 369
EP  - 375
DO  - 10.1007/s12678-012-0093-2
ER  - 

@article{
author = "Smiljanić, Milutin and Srejić, Irina and Grgur, Branimir N. and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2012",
abstract = "Hydrogen evolution reaction was studied on Au(111) modified by palladium spontaneously deposited on the Au(111) surface from (1 mM PdSO4 center dot 2 H2O + 0.5 M H2SO4) solution at a submonolayer coverage. Number and size of Pd islands increased with the increase of the deposition time as observed by ex situ surface topography atomic force microscopy (AFM). The overall coverage of the underlying Au(111) surface by the deposited Pd islands was estimated from simultaneously acquired phase AFM images, which provided a clear contrast between different materials. The obtained Pd/Au(111) surfaces have shown a significant catalytic activity toward hydrogen evolution reaction in 0.5 M H2SO4 solution. This is discussed with respect to Pd islands size and coverage and to the influence of an electronic effect induced in Pd islands by the underlying Au(111) substrate.",
publisher = "Springer, New York",
journal = "Electrocatalysis",
title = "Catalysis of Hydrogen Evolution on Au(111) Modified by Spontaneously Deposited Pd Nanoislands",
volume = "3",
number = "3-4",
pages = "369-375",
doi = "10.1007/s12678-012-0093-2"
}

Smiljanić, M., Srejić, I., Grgur, B. N., Rakočević, Z. Lj.,& Štrbac, S.. (2012). Catalysis of Hydrogen Evolution on Au(111) Modified by Spontaneously Deposited Pd Nanoislands. in Electrocatalysis
Springer, New York., 3(3-4), 369-375.
https://doi.org/10.1007/s12678-012-0093-2

Smiljanić M, Srejić I, Grgur BN, Rakočević ZL, Štrbac S. Catalysis of Hydrogen Evolution on Au(111) Modified by Spontaneously Deposited Pd Nanoislands. in Electrocatalysis. 2012;3(3-4):369-375.
doi:10.1007/s12678-012-0093-2 .

Smiljanić, Milutin, Srejić, Irina, Grgur, Branimir N., Rakočević, Zlatko Lj., Štrbac, Svetlana, "Catalysis of Hydrogen Evolution on Au(111) Modified by Spontaneously Deposited Pd Nanoislands" in Electrocatalysis, 3, no. 3-4 (2012):369-375,
https://doi.org/10.1007/s12678-012-0093-2 . .

TY  - JOUR
AU  - Smiljanić, Milutin
AU  - Srejić, Irina
AU  - Marinović, Vedrana
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/259
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2596
AB  - The oxygen reduction reaction (ORR) was studied on the polycrystalline Pt electrode in 0.1 M NaCl electrolyte containing various amounts of acetonitrile (AcN). The state of the electrode surface was characterized by the cyclic voltammetry in oxygen free electrolytes, while ORR studies were performed on the polycrystalline Pt rotating disc electrode by the linear sweep voltammetry in oxygen saturated electrolytes. The acetonitrile is chemisorbed on Pt over a wide potential range, inhibiting both hydrogen adsorption and oxide formation. The extent of AcN chemisorption depends on its concentration in the solution. Initial potential of oxygen reduction is shifted negatively, while the ORR current is increasingly reduced with the increase of AcN concentration. Complete inhibition of ORR in the potential range of AcN and Cl-anion coadsorption is achieved for (0.1 M NaCl + 1 M AcN) solution.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Inhibiting effect of acetonitrile on oxygen reduction on polycrystalline pt electrode in sodium chloride solution
VL  - 66
IS  - 3
SP  - 327
EP  - 333
DO  - 10.2298/HEMIND111010097S
ER  - 

@article{
author = "Smiljanić, Milutin and Srejić, Irina and Marinović, Vedrana and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2012",
abstract = "The oxygen reduction reaction (ORR) was studied on the polycrystalline Pt electrode in 0.1 M NaCl electrolyte containing various amounts of acetonitrile (AcN). The state of the electrode surface was characterized by the cyclic voltammetry in oxygen free electrolytes, while ORR studies were performed on the polycrystalline Pt rotating disc electrode by the linear sweep voltammetry in oxygen saturated electrolytes. The acetonitrile is chemisorbed on Pt over a wide potential range, inhibiting both hydrogen adsorption and oxide formation. The extent of AcN chemisorption depends on its concentration in the solution. Initial potential of oxygen reduction is shifted negatively, while the ORR current is increasingly reduced with the increase of AcN concentration. Complete inhibition of ORR in the potential range of AcN and Cl-anion coadsorption is achieved for (0.1 M NaCl + 1 M AcN) solution.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Inhibiting effect of acetonitrile on oxygen reduction on polycrystalline pt electrode in sodium chloride solution",
volume = "66",
number = "3",
pages = "327-333",
doi = "10.2298/HEMIND111010097S"
}

Smiljanić, M., Srejić, I., Marinović, V., Rakočević, Z. Lj.,& Štrbac, S.. (2012). Inhibiting effect of acetonitrile on oxygen reduction on polycrystalline pt electrode in sodium chloride solution. in Hemijska industrija
Belgrade : Association of the Chemical Engineers of Serbia., 66(3), 327-333.
https://doi.org/10.2298/HEMIND111010097S

Smiljanić M, Srejić I, Marinović V, Rakočević ZL, Štrbac S. Inhibiting effect of acetonitrile on oxygen reduction on polycrystalline pt electrode in sodium chloride solution. in Hemijska industrija. 2012;66(3):327-333.
doi:10.2298/HEMIND111010097S .

Smiljanić, Milutin, Srejić, Irina, Marinović, Vedrana, Rakočević, Zlatko Lj., Štrbac, Svetlana, "Inhibiting effect of acetonitrile on oxygen reduction on polycrystalline pt electrode in sodium chloride solution" in Hemijska industrija, 66, no. 3 (2012):327-333,
https://doi.org/10.2298/HEMIND111010097S . .

TY  - JOUR
AU  - Srejić, Irina
AU  - Smiljanić, Milutin
AU  - Rakočević, Zlatko Lj.
AU  - Štrbac, Svetlana
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/825
AB  - Oxygen reduction reaction (ORR) was studied on polycrystalline Pt and Au electrodes in 0.1 M HClO(4) solutions containing various amounts of acetonitrile (AcN). The state of the electrode surface was characterized by cyclic voltammetry in oxygen free electrolytes, while ORR studies were performed on polycrystalline Pt and Au rotating disc electrodes by a linear sweep voltammetry in oxygen saturated electrolytes. Acetonitrile is chemisorbed on Pt over a wide potential range inhibiting both H adsorption and oxide formation. The extent of AcN chemisorption depends on its concentration in the solution. Initial potential of oxygen reduction is shifted negatively, while the kinetics of ORR is increasingly hindered with the increase of AcN concentration. Inhibiting effect of acetonitrile on ORR is pronounced on both Pt(poly) and Au(poly). Complete inhibition of ORR in the potential range of AcN chemisorptions is achieved for 0.1 M HClO(4) solution containing 1 M AcN on Au(poly) and 3 M AcN on Pt(poly).
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Oxygen Reduction on Polycrystalline Pt and Au Electrodes in Perchloric Acid Solution in the Presence of Acetonitrile
VL  - 6
IS  - 8
SP  - 3344
EP  - 3354
UR  - https://hdl.handle.net/21.15107/rcub_cer_825
ER  - 

@article{
author = "Srejić, Irina and Smiljanić, Milutin and Rakočević, Zlatko Lj. and Štrbac, Svetlana",
year = "2011",
abstract = "Oxygen reduction reaction (ORR) was studied on polycrystalline Pt and Au electrodes in 0.1 M HClO(4) solutions containing various amounts of acetonitrile (AcN). The state of the electrode surface was characterized by cyclic voltammetry in oxygen free electrolytes, while ORR studies were performed on polycrystalline Pt and Au rotating disc electrodes by a linear sweep voltammetry in oxygen saturated electrolytes. Acetonitrile is chemisorbed on Pt over a wide potential range inhibiting both H adsorption and oxide formation. The extent of AcN chemisorption depends on its concentration in the solution. Initial potential of oxygen reduction is shifted negatively, while the kinetics of ORR is increasingly hindered with the increase of AcN concentration. Inhibiting effect of acetonitrile on ORR is pronounced on both Pt(poly) and Au(poly). Complete inhibition of ORR in the potential range of AcN chemisorptions is achieved for 0.1 M HClO(4) solution containing 1 M AcN on Au(poly) and 3 M AcN on Pt(poly).",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Oxygen Reduction on Polycrystalline Pt and Au Electrodes in Perchloric Acid Solution in the Presence of Acetonitrile",
volume = "6",
number = "8",
pages = "3344-3354",
url = "https://hdl.handle.net/21.15107/rcub_cer_825"
}

Srejić, I., Smiljanić, M., Rakočević, Z. Lj.,& Štrbac, S.. (2011). Oxygen Reduction on Polycrystalline Pt and Au Electrodes in Perchloric Acid Solution in the Presence of Acetonitrile. in International Journal of Electrochemical Science
Esg, Belgrade., 6(8), 3344-3354.
https://hdl.handle.net/21.15107/rcub_cer_825

Srejić I, Smiljanić M, Rakočević ZL, Štrbac S. Oxygen Reduction on Polycrystalline Pt and Au Electrodes in Perchloric Acid Solution in the Presence of Acetonitrile. in International Journal of Electrochemical Science. 2011;6(8):3344-3354.
https://hdl.handle.net/21.15107/rcub_cer_825 .

Srejić, Irina, Smiljanić, Milutin, Rakočević, Zlatko Lj., Štrbac, Svetlana, "Oxygen Reduction on Polycrystalline Pt and Au Electrodes in Perchloric Acid Solution in the Presence of Acetonitrile" in International Journal of Electrochemical Science, 6, no. 8 (2011):3344-3354,
https://hdl.handle.net/21.15107/rcub_cer_825 .