Capillary pressure saturation relations for PEM fuel cell gas diffusion layers

被引：45

作者：

Gallagher, Kevin G. ^{[1
]}

Darling, Robert M. ^{[2
]}

Patterson, Timothy W. ^{[2
]}

Perry, Michael L. ^{[2
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[2] UTC Power, S Windsor, CT 06074 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2008年 / 155卷 / 11期

关键词：

D O I：

10.1149/1.2979145

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Capillary pressure saturation relations (CPSRs) are presented for Toray TGP-H-060 and Mitsubishi rayon carbon fiber paper which can both be used as gas diffusion layers (GDLs) in proton-exchange membrane fuel cells (PEMFCs). The saturation is measured using water over a range of capillary pressures. Boundary and scanning curves for imbibition and drainage are measured to further understand the hysteresis observed during PEMFC operation. The primary source of hysteresis in CPSRs is attributed to the difference in advancing and receding contact angles. The measured hysteresis is predicted to have a significant effect on mass transport in the GDL and thus performance in PEMFCs. (C) 2008 The Electrochemical Society.

引用

页码：B1225 / B1231

页数：7