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 language | English |
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Pages (from-to) | 1217-1223 |
Number of pages | 7 |
Journal | Electrochimica Acta |
Volume | 50 |
Issue number | 5 |
DOIs | |
Publication status | Published - 15 Jan 2005 |
Keywords
- AC impedance
- Fuel cell
- Methanol oxidation
- Platinum and ruthenium electrocatalysts
- Thermal decomposition
- Titanium mesh