Journal of Applied Electrochemistry

, Volume 25, Issue 6, pp 528–532 | Cite as

Methanol electrooxidation on carbon-supported Pt-WO3−x electrodes in sulphuric acid electrolyte

  • A. K. Shukla
  • M. K. Ravikumar
  • S. Aricò
  • G. Candiano
  • V. Antonucci
  • N. Giordano
  • A. Hamnett
Papers

Abstract

Electrooxidation of methanol has been studied in sulphuric acid electrolyte at 60°C on carbon-supported Pt-WO3−x electrodes employing varying amounts of WO3−x. It is found that the electrodes containing (3:1) Pt-WO3−x composite catalyst exhibit a higher catalytic activity towards methanol electrooxidation than platinized carbon electrodes without WO3−x. In the light of the XPS and XRD data on the carbon-supported (3:1) Pt-WOx sample, it is speculated that the WOx is present in the form of an oxyhydroxide, which can promote surface oxy-species on platinum by proton transfer.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • A. K. Shukla
    • 1
  • M. K. Ravikumar
    • 1
  • S. Aricò
    • 2
  • G. Candiano
    • 2
  • V. Antonucci
    • 2
  • N. Giordano
    • 2
  • A. Hamnett
    • 3
  1. 1.Solid State and Structural Chemistry UnitIndian Institute of ScienceBangaloreIndia
  2. 2.Institute CNR-TAES. Lucia, MessinaItaly
  3. 3.Department of Chemistry, Bedson BuildingUniversity of NewcastleNewcastle upon TyneGreat Britain

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