Modelling the PEM fuel cell cathode

被引:206
作者
Broka, K
Ekdunge, P
机构
[1] Dept. of Chem. Eng. and Technology, Applied Electrochemistry, Royal Institute of Technology
关键词
D O I
10.1023/A:1018476612810
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Two models of the cathode of the proton exchange membrane fuel cell, a pseudohomogeneous film model and an agglomerate model, have been compared. The influence of different parameters on the shape of the polarization curves has been shown. Curves simulated by use of the two models and different values of oxygen permeability, effective conductivity and thickness of the active layer as well as thickness of the Nafion(R) film surrounding agglomerates have been presented and compared with the experimental results. On the basis of the simulations and the SEM study of the structure of the active catalyst layer it has been concluded that the agglomerate model is a better representation of the active catalyst layer than the pseudohomogeneous film model.
引用
收藏
页码:281 / 289
页数:9
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