期刊
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
卷 72, 期 11, 页码 1095-1101出版社
SERBIAN CHEMICAL SOC
DOI: 10.2298/JSC0711095T
关键词
platinum-ruthenium alloy; supported nanocatalyst; XRD analysis; methanol; oxidation; alkaline solution
The electrochemical oxidation of methanol in NaOH Solution Was examined on a thin film Pt2Ru3/C electrode. The XRD pattern revealed that the Pt2Ru3 alloy consisted of a solid solution of Ru in Pt and a small amount of Ru or a solid solution of Pt in Ru. It was shown that in alkaline Solution, the difference in activity between Pt/C and Pt2Ru3/C is significantly smaller than in acid solution. It is proposed that the reaction follows a quasi bifunctional mechanism. The kinetic parameters indicated that the chemical reaction between adsorbed COad and OHad species could be the rate limiting step.
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