The influence of carbon dioxide on PEM fuel cell anodes

被引：141
|
作者：
de Bruijn, FA [1 ]
Papageorgopoulos, DC [1 ]
Sitters, EF [1 ]
Janssen, GJM [1 ]
机构：
[1] ECN Clean Fossil Fuels, NL-1755 ZG Petten, Netherlands
来源：
JOURNAL OF POWER SOURCES | 2002年 / 110卷 / 01期
关键词：
PEM fuel cell (PEMFC); reformate; CO2-tolerance; reverse water-gas shift;
D O I：
10.1016/S0378-7753(02)00227-6
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：
The influence Of CO2 on the performance of PEM fuel cells was investigated by means of fuel cell experiments and cyclic voltammetry. Depending on the composition and microstructure of the fuel cell anode, the effect varies from small to significant. Adsorbed hydrogen plays a dominant role in the formation of CO-like species via the reverse water-gas shift reaction. Platinum sites which are not utilized in the electrochemical oxidation of hydrogen are thought to catalyze this reverse-shift reaction. Alloying with ruthenium suppresses the reverse-shift reaction. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：117 / 124
页数：8
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