Temperature-driven water transport through membrane electrode assembly of proton exchange membrane fuel cells

被引：45
|
作者：
Zaffou, Rachid [1 ]
Yi, Jung S.
Kunz, H. Russell
Fenton, James M.
机构：
[1] Univ Connecticut, Dept Chem Engn, Storrs, CT 06269 USA
[2] Arkema Inc, King Of Prussia, PA 19406 USA
[3] Univ Cent Florida, Florida Solar Energy Ctr, Cocoa, FL 32922 USA
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 09期
关键词：
D O I：
10.1149/1.2218306
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A quantitative investigation has been carried out to examine the effect of through-plane temperature difference on water transport across the membrane electrode assembly (MEA) of a proton exchange membrane (PEM) fuel cell. The presence of a temperature difference across the cell was found to cause a significant amount of water to transport through the MEA in the direction towards the colder side; the water transport rate increased with temperature and temperature gradient. This study reveals the importance of thermo-osmosis in PEM fuel cells (PEMFCs) and the need to consider the through-plane temperature profile in water management design and operation in PEMFCs. (c) 2006 The Electrochemical Society.
引用
收藏
页码：A418 / A422
页数：5
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