Multi-dimensional modeling of CO poisoning effects on proton exchange membrane fuel cells (PEMFCs)

被引：0
作者：
Hyunchul Ju
Kwan-Soo Lee
Sukkee Um
机构：
[1] Inha University,Department of Mechanical Engineering
[2] Hanyang University,School of Mechanical Engineering
来源：
Journal of Mechanical Science and Technology | 2008年 / 22卷
关键词：
Fuel cell; Carbon monoxide poisoning; Mass transfer; Platinum catalyst; Onboard reforming system;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Carbon monoxide (CO), which is preferentially absorbed on the platinum catalyst layer of a proton exchange membrane fuel cell (PEMFC), is extremely detrimental to cell performance. Essentially, the carbon monoxide absorption diminishes the cell’s performance by blocking and reducing the number of catalyst sites available for the hydrogen oxidation reaction. In order to obtain a full understanding of CO poisoning characteristics and remediate CO-poisoned PEMFCs, a CO poisoning numerical model is developed and incorporated into a fully three-dimensional electrochemical and transport coupled PEMFC model. By performing CFD numerical simulations, this paper clearly demonstrates the CO poisoning mechanisms and characteristics of PEMFCs. The predictive capability for CO poisoning effects enables us to find major contributors to CO tolerance in a PEMFC and thus successfully integrate CO-resistant fuel cell systems.
引用
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页码：991 / 998
页数：7
相关论文
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