Electro-oxidation of ethanol at sputter-deposited platinum-tin catalysts

被引：39

作者：

Bommersbach, Pascale ^{[1
]}

Mohamedi, Mohamed ^{[1
]}

Guay, Daniel ^{[1
]}

机构：

[1] Univ Quebec, Ctr Energie Mat & Telecommun, Inst Natl Rech Sci, Varennes, PQ J3X 1S2, Canada

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2007年 / 154卷 / 08期

关键词：

D O I：

10.1149/1.2747534

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electro-oxidation of ethanol was studied in Pt/Sn catalysts, prepared by sputter-deposition. The performances of four different Pt/Sn catalysts in the proportions of 95/5, 80/20, 50/50, and 25/75 were investigated using cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy. Pt-50/Sn-50 appears to be the best electrocatalyst among the four studied alloys; the current density of the ethanol oxidation peak is the highest for Pt-50/Sn-50, and this catalyst also reveals the lowest charge-transfer resistance, which tends to decrease in spite of the application of higher potentials. (c) 2007 The Electrochemical Society.

引用

页码：B876 / B882

页数：7

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