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Electrocatalysis of hydrogen evolution on polycrystalline palladium by rhodium nanoislands in alkaline solution

Authorized Users Only
2015
Authors
Štrbac, Svetlana
Smiljanić, Milutin
Rakočević, Zlatko Lj.
Article (Published version)
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Abstract
Hydrogen evolution reaction (HER) was investigated on bimetallic Rh/Pd(poly) electrodes in alkaline solution. Bimetallic electrodes were obtained by a spontaneous deposition of rhodium on polycrystalline Pd. Characterization of obtained electrodes was performed ex situ by atomic force microscopy and by spectroscopic ellipsometry. The results have shown that the coverage of palladium substrate with the deposited Rh nanoislands was up to 50%, depending on the chosen deposition time. Electrochemical properties and catalytic activity of Rh/Pd(poly) nanostructures for HER were examined in 0.1 M NaOH solution by cyclic voltammetry and linear sweep voltammetry. Rh/Pd(poly) electrodes have shown an enhanced activity for HER with respect to bare Pd(poly), which was ascribed to the strong electronic interaction between palladium substrate and the deposited rhodium islands. The enhanced catalytic activity of 50% Rh/Pd(poly) for HER in alkaline solution is comparable to that of bare Pt(poly).
Keywords:
Hydrogen evolution / Palladium / Rhodium / AFM / Spectroscopic ellipsometry
Source:
Journal of Electroanalytical Chemistry, 2015, 755, 115-121
Publisher:
  • Elsevier
Funding / projects:
  • Functional, Functionalized and Advanced Nanomaterials (RS-45005)

DOI: 10.1016/j.jelechem.2015.07.044

ISSN: 1572-6657

WoS: 000362917300016

Scopus: 2-s2.0-84938890523
[ Google Scholar ]
19
18
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1813
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Štrbac, Svetlana
AU  - Smiljanić, Milutin
AU  - Rakočević, Zlatko Lj.
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1813
AB  - Hydrogen evolution reaction (HER) was investigated on bimetallic Rh/Pd(poly) electrodes in alkaline solution. Bimetallic electrodes were obtained by a spontaneous deposition of rhodium on polycrystalline Pd. Characterization of obtained electrodes was performed ex situ by atomic force microscopy and by spectroscopic ellipsometry. The results have shown that the coverage of palladium substrate with the deposited Rh nanoislands was up to 50%, depending on the chosen deposition time. Electrochemical properties and catalytic activity of Rh/Pd(poly) nanostructures for HER were examined in 0.1 M NaOH solution by cyclic voltammetry and linear sweep voltammetry. Rh/Pd(poly) electrodes have shown an enhanced activity for HER with respect to bare Pd(poly), which was ascribed to the strong electronic interaction between palladium substrate and the deposited rhodium islands. The enhanced catalytic activity of 50% Rh/Pd(poly) for HER in alkaline solution is comparable to that of bare Pt(poly).
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Electrocatalysis of hydrogen evolution on polycrystalline palladium by rhodium nanoislands in alkaline solution
VL  - 755
SP  - 115
EP  - 121
DO  - 10.1016/j.jelechem.2015.07.044
ER  - 
@article{
author = "Štrbac, Svetlana and Smiljanić, Milutin and Rakočević, Zlatko Lj.",
year = "2015",
abstract = "Hydrogen evolution reaction (HER) was investigated on bimetallic Rh/Pd(poly) electrodes in alkaline solution. Bimetallic electrodes were obtained by a spontaneous deposition of rhodium on polycrystalline Pd. Characterization of obtained electrodes was performed ex situ by atomic force microscopy and by spectroscopic ellipsometry. The results have shown that the coverage of palladium substrate with the deposited Rh nanoislands was up to 50%, depending on the chosen deposition time. Electrochemical properties and catalytic activity of Rh/Pd(poly) nanostructures for HER were examined in 0.1 M NaOH solution by cyclic voltammetry and linear sweep voltammetry. Rh/Pd(poly) electrodes have shown an enhanced activity for HER with respect to bare Pd(poly), which was ascribed to the strong electronic interaction between palladium substrate and the deposited rhodium islands. The enhanced catalytic activity of 50% Rh/Pd(poly) for HER in alkaline solution is comparable to that of bare Pt(poly).",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrocatalysis of hydrogen evolution on polycrystalline palladium by rhodium nanoislands in alkaline solution",
volume = "755",
pages = "115-121",
doi = "10.1016/j.jelechem.2015.07.044"
}
Štrbac, S., Smiljanić, M.,& Rakočević, Z. Lj.. (2015). Electrocatalysis of hydrogen evolution on polycrystalline palladium by rhodium nanoislands in alkaline solution. in Journal of Electroanalytical Chemistry
Elsevier., 755, 115-121.
https://doi.org/10.1016/j.jelechem.2015.07.044
Štrbac S, Smiljanić M, Rakočević ZL. Electrocatalysis of hydrogen evolution on polycrystalline palladium by rhodium nanoislands in alkaline solution. in Journal of Electroanalytical Chemistry. 2015;755:115-121.
doi:10.1016/j.jelechem.2015.07.044 .
Štrbac, Svetlana, Smiljanić, Milutin, Rakočević, Zlatko Lj., "Electrocatalysis of hydrogen evolution on polycrystalline palladium by rhodium nanoislands in alkaline solution" in Journal of Electroanalytical Chemistry, 755 (2015):115-121,
https://doi.org/10.1016/j.jelechem.2015.07.044 . .

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