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.
TY - JOUR
AU - Smiljanić, Milutin
AU - Rakočević, Zlatko Lj.
AU - Maksic, A.
AU - Štrbac, Svetlana
PY - 2014
UR - http://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 - Pergamon-Elsevier Science Ltd, Oxford
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",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/1548",
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 = "Pergamon-Elsevier Science Ltd, Oxford",
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.
Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 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. Electrochimica Acta. 2014;117:336-343
Smiljanić Milutin, Rakočević Zlatko Lj., Maksic A., Štrbac Svetlana, "Hydrogen Evolution Reaction on Platinum Catalyzed by Palladium and Rhodium Nanoislands" Electrochimica Acta, 117 (2014):336-343,
https://doi.org/10.1016/j.electacta.2013.11.142 .
