A potential anode material for the direct alcohol fuel cell

被引：35

作者：

Sen Gupta, S ^{[1
]}

Mahapatra, SS ^{[1
]}

Datta, J ^{[1
]}

机构：

[1] Bengal Engn Coll, DU, Dept Chem, Howrah 711103, India

来源：

JOURNAL OF POWER SOURCES | 2004年 / 131卷 / 1-2期

关键词：

copper-nickel alloy; platinum; ruthenium; polytetrafluroethylene (PTFE); ethanol electro-oxidation; electrocatalytic activity;

D O I：

10.1016/j.jpowsour.2004.01.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

One of the key points to develop a cost-effective direct alcohol fuel cell (DAFC) is to investigate cheaper electrocatalysts for the oxidation of alcohol at the anode, allowing an increase in the current density and a decrease in the anodic overvoltage. In this respect, polycrystalline, deposits of platinum and platinum-ruthenium on a CuNi (70:30) alloy support are investigated here. Electro-oxidation of ethanol in 0.5 M NaOH is studied over these electrodes. Cyclic voltammetry, steady state polarization and electrochemical impedance spectroscopy are used to investigate the kinetics and mechanism of ethanol electro-oxidation. Efforts are also made to correlate the catalytic activity of such electrodes with their surface morphology. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：169 / 174

页数：6