Numerical study of PEM fuel cell cathode with non-uniform catalyst layer

被引：60
|
作者：
Song, DT
Wang, QP
Liu, ZS
Navessin, T
Holdcroft, S
机构：
[1] CNR, IFIC, Vancouver, BC V6T 1W5, Canada
[2] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada
来源：
ELECTROCHIMICA ACTA | 2004年 / 50卷 / 2-3期
关键词：
PEM fuel cell; non-uniform catalyst layer; agglomerate; porosity;
D O I：
10.1016/j.electacta.2004.01.114
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A one-dimensional, steady-state multi-layer agglomerate model is presented for the performance analysis of the non-uniform catalyst layer in proton exchange membrane (PEM) fuel cell. The catalyst layer is assumed to be composed of several sub-layers. The effects of different material property combinations for these sub-layers on the whole catalyst layer performance are studied numerically. The results show that the performance of the catalyst layer is highly dependent on the properties of the sub-layer close to the membrane when the catalyst layer is operated in the regime of proton conductivity limiting. The performance of the catalyst layer can be improved by adjusting the material properties of each sub-layer, especially these of the sub-layer close to the membrane. Crown Copyright (C) 2004 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：731 / 737
页数：7
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