Behaviors of proton exchange membrane fuel cells under oxidant starvation
文献类型：期刊论文
| 作者 | Dou, Meiling1,2; Hou, Ming1; Liang, Dong1,2; Shen, Qiang1,2; Zhang, Huabing1,2; Lu, Wangting1,2; Shao, Zhigang1; Yi, Baolian1 |
| 刊名 | journal of power sources
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 196期号:5页码:2759-2762 |
| 关键词 | Proton exchange membrane fuel cell (PEMFC) Oxidant starvation Current distribution Local interfacial potential |
| ISSN号 | 待补充 |
| 产权排序 | 1,1 |
| 通讯作者 | 侯明 ; 邵志刚 |
| 中文摘要 | behaviors of proton exchange membrane fuel cells under oxidant starvation |
| 英文摘要 | durability is an important issue in proton exchange membrane fuel cells (pemfcs) currently. reactant starvation could be one of the reasons for pemfc degradation. in this research, the oxidant starvation phenomena in a single cell are investigated. the local interfacial potential, current and temperature distribution are detected in situ with a specially constructed segmented cell. experimental results show that during the cell reversal process due to oxidant starvation, the local interfacial potential in the oxidant inlet keeps positive while that of the middle and outlet regions become negative, which illustrates that oxygen and proton reduction reactions could occur simultaneously in different regions at the cathode. the current distribution would be more uneven with decreasing air stoichiometry before cell reversal. when cell reversal occurs, the current will redistribute and the current distribution tends more uniform. at the critical point of cell reversal, the most significant inhomogeneity in the current distribution can be observed. the temperature distribution in the cell is also monitored on-line. the local hot spot exists in the cell when cell reversal occurs. the study of the critical reversal air stoichiometry under different loads shows that the critical reversal air stoichiometry increases with the rising loads. (c) 2010 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | electrochemistry ; energy & fuels |
| 研究领域[WOS] | electrochemistry ; energy & fuels |
| 关键词[WOS] | performance ; reversal ; pemfc ; air |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000286705100043 |
| 公开日期 | 2012-07-09 |
| 源URL | [http://159.226.238.44/handle/321008/115446]  |
| 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 | Dou, Meiling,Hou, Ming,Liang, Dong,et al. Behaviors of proton exchange membrane fuel cells under oxidant starvation[J]. journal of power sources,2011,196(5):2759-2762. |
| APA | Dou, Meiling.,Hou, Ming.,Liang, Dong.,Shen, Qiang.,Zhang, Huabing.,...&Yi, Baolian.(2011).Behaviors of proton exchange membrane fuel cells under oxidant starvation.journal of power sources,196(5),2759-2762. |
| MLA | Dou, Meiling,et al."Behaviors of proton exchange membrane fuel cells under oxidant starvation".journal of power sources 196.5(2011):2759-2762. |
入库方式： OAI收割
来源：大连化学物理研究所
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