期刊
ELECTROCHIMICA ACTA
卷 56, 期 19, 页码 6709-6714出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.05.064
关键词
Alcohol electrooxidation; Silicon microchannel plates electrode; 3D ordered array; Fuel cells; Nickel-palladium (Ni-Pd) nanoparticles
资金
- Natural Science Foundation of Heilongjiang Province [F201008]
- Scientific Research Foundation [2010k-Z02]
- Excellent Young Scholars of Higher University of Heilongjiang Province [1521G067]
The use of silicon microchannel plates (MCP) modified with nickel-palladium (Ni-Pd) nanoparticles by electroless plating was studied for the electrocatalytic oxidation of methanol and ethanol by cyclic voltammetry and chronoamperometry in alkaline media. The electrocatalyst was characterized by EDS, SEM and cyclic voltammetry, and the effective parameters on electrocatalytic oxidation of the alcohol. i.e. the concentration of KOH and alcohol, medium temperature and working potential limit in anodic direction were investigated. The modified electrode shows a superior electrooxidation performance with the operating temperature increasing and a strong current response to methanol and ethanol even during long-term oxidation of alcohol. All results show that the Ni-Pd/Si-MCP nanocomposite electrode is very attractive for integrated fuel cell applications. (C) 2011 Elsevier Ltd. All rights reserved.
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