Study of the cell reversal process of large area proton exchange membrane fuel cells under fuel starvation

	Study of the cell reversal process of large area proton exchange membrane fuel cells under fuel starvation
	Liang, Dong 1,2; Shen, Qiang 1,2; Hou, Ming 1; Shao, Zhigang 1; Yi, Baolian 1
刊名	journal of power sources
	2009-12-01
卷号	194 期号:2 页码:847-853
关键词	Proton exchange membrane fuel cell Stack Fuel starvation Current distribution Interfacial potential
通讯作者	侯明
产权排序	1;1
英文摘要	in this research, the fuel starvation phenomena in a single proton exchange membrane fuel cell (pemfc) are investigated experimentally. the response characteristics of a single cell under the different degrees of fuel starvation are explored. the key parameters (cell voltage, current distribution, cathode and anode potentials, and local interfacial potentials between anode and membrane, etc.) are measured in situ with a specially constructed segmented fuel cell. experimental results show that during the cell reversal process due to the fuel starvation, the current distribution is extremely uneven, the local high interfacial potential is suffered near the anode outlet, hydrogen and water are oxidized simultaneously in the different regions at the anode, and the carbon corrosion is proved to occur at the anode by analyzing the anode exhaust gas. when the fuel starvation becomes severer, the water electrolysis current gets larger, the local interfacial potential turns higher, and the carbon corrosion near the anode outlet gets more significant. the local interfacial potential near the anode outlet increases from ca. 1.8 to 2.6 v when the hydrogen stoichiometry decreases from 0.91 to 0.55. the producing rate of the carbon dioxide also increases from 18 to 20 ml min(-1). crown copyright (c) 2009 published by elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	4 reference electrodes ; pemfc ; polarization ; performance ; behavior ; pefc
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000270620500037
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/102371]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liang, Dong,Shen, Qiang,Hou, Ming,et al. Study of the cell reversal process of large area proton exchange membrane fuel cells under fuel starvation[J]. journal of power sources,2009,194(2):847-853.
APA	Liang, Dong,Shen, Qiang,Hou, Ming,Shao, Zhigang,&Yi, Baolian.(2009).Study of the cell reversal process of large area proton exchange membrane fuel cells under fuel starvation.journal of power sources,194(2),847-853.
MLA	Liang, Dong,et al."Study of the cell reversal process of large area proton exchange membrane fuel cells under fuel starvation".journal of power sources 194.2(2009):847-853.