On the Enhanced Electrocatalytic Activity of Pd Overlayers on Carbon-Supported Gold Particles in Hydrogen Electrooxidation | Sciact - CRIS-system of Boreskov Institute of Catalysis

On the Enhanced Electrocatalytic Activity of Pd Overlayers on Carbon-Supported Gold Particles in Hydrogen Electrooxidation Full article

Journal

PCCP: Physical Chemistry Chemical Physics
ISSN: 1463-9076 , E-ISSN: 1463-9084

Output data

Year: 2008, Volume: 10, Number: 44, Pages: 6665-6676 Pages count : 12 DOI: 10.1039/b803703e

Tags

SINGLE-CRYSTAL SURFACES; CO MONOLAYER OXIDATION; ELECTROCHEMICAL OXIDATION; UNDERPOTENTIAL DEPOSITION; PALLADIUM; REACTIVITY; ADSORPTION; PLATINUM; FILMS; Au

Authors

Ruvinsky Pavel S. ^1,2 , Pronkin Sergey N. ^1,2 , Zaikovskii Vladimir I. ² , Bernhardt Pierre ¹ , Savinova Elena R. ^1,2

Affiliations

1	Laboratory of Materials, Surfaces and Catalytic Processes, UMR 7515 of CNRS-ULP-ECPM, University Louis Pasteur, 25 Rue Becquerel, 67087 Strasbourg, France
2	Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia

Funding (3)

1	Russian Foundation for Basic Research	06-03-32737
2	European Commission	32175 FP6-2004-NMP-TI-4 FCANODE
3	The French National Research Agency	ANR-06-CEXC-004

Palladium-gold particles with varied composition were prepared by Pd electrochemical deposition on Au nanoparticles immobilized on model carbon support. Pd–Au/C catalysts were characterized ex situ by transmission electron microscopy, energy dispersive X-ray analysis and X-ray photoelectron spectroscopy, and in situ, by underpotential deposition of hydrogen and copper adatoms, and CO stripping. Hydrogen oxidation reaction on pristine and CO-poisoned Pd–Au/C particles was studied using rotating disk electrode (RDE) technique. It was found that the decrease of the effective Pd overlayer thickness below ca. two monolayers resulted in a two-fold increase of the exchange current density of the hydrogen oxidation reaction and in significant increase of CO tolerance.

Ruvinsky P.S. , Pronkin S.N. , Zaikovskii V.I. , Bernhardt P. , Savinova E.R.
On the Enhanced Electrocatalytic Activity of Pd Overlayers on Carbon-Supported Gold Particles in Hydrogen Electrooxidation
PCCP: Physical Chemistry Chemical Physics. 2008. V.10. N44. P.6665-6676. DOI: 10.1039/b803703e WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Mar 3, 2008
Accepted:	Aug 11, 2008
Published online:	Sep 29, 2008

Web of science:	WOS:000260775400011
Scopus:	2-s2.0-55849136936
Elibrary:	13567299
Chemical Abstracts:	2008:1347382
Chemical Abstracts (print):	150:85358
OpenAlex:	W2059301553

DB	Citing
Web of science	31
Scopus	34
Elibrary	33
OpenAlex	36