A method for optimizing distributions of Nafion and Pt in cathode catalyst layers of PEM fuel cells

被引：109

作者：

Song, DT

Wang, QP

Liu, ZS

Eikerling, M

Xie, Z

Navessin, T

Holdcroft, S

机构：

[1] Natl Res Council Canada, Modeling Grp, Inst Fuel Cell Innovat, Vancouver, BC V6T 1W5, Canada

[2] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

来源：

ELECTROCHIMICA ACTA | 2005年 / 50卷 / 16-17期

关键词：

PEM fuel cell; catalyst layer; performance optimization; nafion content distribution; Pt loading distribution;

D O I：

10.1016/j.electacta.2004.12.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Optimal distributions of Nation content and Pt loading across the entire thickness of cathode catalyst layers of polymer electrode membrane (PEM) fuel cells are obtained by maximizing the cell current density at a given potential. When optimization is performed with either the Nafion content or Pt loading as the single variable, it is found that the optimal distribution is a linearly increasing function from the gas diffusion layer side to the membrane side; when optimization is treated as a two-variable problem, i.e. comprising of both Nafion content distribution and Pt loading distribution, the optimal distribution of Nafion content is still a linearly increasing function but the optimal distribution of Pt loading is a convex increasing function. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3347 / 3358

页数：12

共 42 条

[1] Catalyst gradient for cathode active layer of proton exchange membrane fuel cell [J].