✦ LIBER ✦
Methanol electrooxidation on smooth platinum modified with Ru: The influence of Ru coverage and potentials on oxidative current and products
✍ Scribed by Hong-Sen Wang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 625 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0256-7660
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✦ Synopsis
Abstract
Methanol oxidation on smooth Pt electrode modified with different coverage of Ru was studied using cyclic voltammetry and potential step combined with differential electrochemical mass spectroscopy. The current efficiency of formed CO~2~ was calculated from faraday current and ion current of m/z = 44. The results show that Ru modified Pt electrode with the coverage of ca. 0.3 has the highest catalytic activity for methanol electrooxidation, i.e. faraday current and the current efficiency of CO~2~ at the low potentials reach to the maximum. In addition, Ru loses its co‐catalytic properties at the high potentials.