A study of PtRuO2 catalysts thermally formed on titanium mesh for methanol oxidation

L. X. Yang, R. G. Allen, K. Scott*, P. A. Christenson, S. Roy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Platinum-based catalysts, for the electro-oxidation of methanol, have been made by thermal decomposition of chloride precursors onto titanium mesh. The catalysed electrodes were successfully operated in acidic methanol electrolytes. Electrochemical characterisation has been carried out using cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic polarisations. A complete analysis of the electrochemical results showed that the preliminary performance of the catalysed titanium mesh was comparable to that achieved with carbon-supported PtRu catalysts. The catalysts formed on titanium mesh by thermal decomposition also exhibited dimensional stability. Catalysed titanium mesh therefore appears to be a promising alternative to carbon-supported catalysts for certain fuel cell applications.

Original languageEnglish
Pages (from-to)1217-1223
Number of pages7
JournalElectrochimica Acta
Volume50
Issue number5
DOIs
Publication statusPublished - 15 Jan 2005

Keywords

  • AC impedance
  • Fuel cell
  • Methanol oxidation
  • Platinum and ruthenium electrocatalysts
  • Thermal decomposition
  • Titanium mesh

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