Electrocatalytic oxidation of methanol on platinum modified polyaniline electrodes

被引：116

作者：

Kitani, A ^{[1
]}

Akashi, T ^{[1
]}

Sugimoto, K ^{[1
]}

Ito, S ^{[1
]}

机构：

[1] Hiroshima Univ, Fac Engn, Higashihiroshima 7398527, Japan

来源：

SYNTHETIC METALS | 2001年 / 121卷 / 1-3期

关键词：

electrochemical methods; polyaniline and derivatives; fuel cells;

D O I：

10.1016/S0379-6779(00)01522-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrocatalytic oxidation of methanol on Pt modified polyaniline electrodes was investigated with the aim of developing highly active composite electrodes for direct methanol fuel cells. Cyclic voltammetry and chronoamperometry were used to evaluate the catalytic activity in sulfuric acid solutions containing methanol. Pt / polyaniline modified carbon electrodes showed higher catalytic activity towards oxidation of methanol than Pt deposited carbon electrodes. The effect of different protonic acids used in the electrochemical preparation of polyaniline on the oxidation current of methanol was studied. Largest oxidation current was obtained for polyanilines prepared in sulfuric acid solutions.

引用

页码：1301 / 1302

页数：2

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