Journal of Applied Electrochemistry

, Volume 25, Issue 6, pp 528–532

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

Authors

  • A. K. Shukla
    • Solid State and Structural Chemistry UnitIndian Institute of Science
  • M. K. Ravikumar
    • Solid State and Structural Chemistry UnitIndian Institute of Science
  • S. Aricò
    • Institute CNR-TAE
  • G. Candiano
    • Institute CNR-TAE
  • V. Antonucci
    • Institute CNR-TAE
  • N. Giordano
    • Institute CNR-TAE
  • A. Hamnett
    • Department of Chemistry, Bedson BuildingUniversity of Newcastle
Papers

DOI: 10.1007/BF00573210

Cite this article as:
Shukla, A.K., Ravikumar, M.K., Aricò, S. et al. J Appl Electrochem (1995) 25: 528. doi:10.1007/BF00573210

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.

Download to read the full article text

Copyright information

© Chapman & Hall 1995