Kinetic study of methanol oxidation on Pt2Ru3/C catalyst in the alkaline media

被引：9

作者：

Tripkovic, A. V. ^{[1
]}

Popovic, K. DJ. ^{[1
]}

Lovic, J. D. ^{[1
]}

机构：

[1] Univ Belgrade, ICTM Inst Electrochem, Belgrade 11000, Serbia

来源：

JOURNAL OF THE SERBIAN CHEMICAL SOCIETY | 2007年 / 72卷 / 11期

关键词：

platinum-ruthenium alloy; supported nanocatalyst; XRD analysis; methanol; oxidation; alkaline solution;

D O I：

10.2298/JSC0711095T

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1095 / 1101

页数：7

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