Jump to main content
Jump to site search
Publishing
Advanced

Issue 44, 2008
Previous Article Next Article

On the enhanced electrocatalytic activity of Pd overlayers on carbon-supported gold particles in hydrogen electrooxidation

Pavel S. Ruvinsky,ab  Sergey N. Pronkin,ab  Vladimir I. Zaikovskii,c  Pierre Bernhardta  and  Elena R. Savinovaab 
Author affiliations

a Laboratory of Materials, Surfaces and Catalytic Processes, UMR 7515 of CNRS-ULP-ECPM, University Louis Pasteur, 25 Rue Becquerel, Strasbourg, France

b Former address: Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, Russia

c Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, Russia

Abstract

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.

Graphical abstract: On the enhanced electrocatalytic activity of Pd overlayers on carbon-supported gold particles in hydrogen electrooxidation

Back to tab navigation
Download options Please wait...

Publication details

The article was received on 03 Mar 2008, accepted on 11 Aug 2008 and first published on 29 Sep 2008


Article type: Paper
DOI: 10.1039/B803703E
Citation: Phys. Chem. Chem. Phys., 2008,10, 6665-6676
  •   Request permissions

    On the enhanced electrocatalytic activity of Pd overlayers on carbon-supported gold particles in hydrogen electrooxidation

    P. S. Ruvinsky, S. N. Pronkin, V. I. Zaikovskii, P. Bernhardt and E. R. Savinova, Phys. Chem. Chem. Phys., 2008, 10, 6665
    DOI: 10.1039/B803703E

    If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using RightsLink. Go to our Instructions for using RightsLink page for details.

    Authors contributing to RSC publications (journal articles, books or book chapters) do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      Reproduced from Ref. XX with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry.
    • For reproduction of material from PCCP:
      Reproduced from Ref. XX with permission from the PCCP Owner Societies.
    • For reproduction of material from PPS:
      Reproduced from Ref. XX with permission from the European Society for Photobiology, the European Photochemistry Association, and The Royal Society of Chemistry.
    • For reproduction of material from all other RSC journals and books:
      Reproduced from Ref. XX with permission from The Royal Society of Chemistry.

    If the material has been adapted instead of reproduced from the original RSC publication "Reproduced from" can be substituted with "Adapted from".

    In all cases the Ref. XX is the XXth reference in the list of references.

    If you are the author of this article you do not need to formally request permission to reproduce figures, diagrams etc. contained in this article in third party publications or in a thesis or dissertation provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Reproduced by permission of The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC
    • For reproduction of material from PCCP:
      [Original citation] - Reproduced by permission of the PCCP Owner Societies
    • For reproduction of material from PPS:
      [Original citation] - Reproduced by permission of The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC
    • For reproduction of material from all other RSC journals:
      [Original citation] - Reproduced by permission of The Royal Society of Chemistry

    If you are the author of this article you still need to obtain permission to reproduce the whole article in a third party publication with the exception of reproduction of the whole article in a thesis or dissertation.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements