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Analysis of the behavior and degradation in proton exchange membrane fuel cells with a dead-ended anode
Yu, Jianliang1; Jiang, Zuwei1; Hou, Ming2; Liang, Dong3; Xiao, Yu2; Dou, Meiling2,4; Shao, Zhigang2; Yi, Baolian2
关键词Proton Exchange Membrane Fuel Cell Hydrogen Depleted Region Dead-ended Anode Current Distribution Local Potential
刊名JOURNAL OF POWER SOURCES
2014-01-15
DOI10.1016/j.jpowsour.2013.06.163
246页:90-94
收录类别SCI
文章类型Article
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]CARBON CORROSION ; STARVATION ; PEMFC
英文摘要Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode (DEA) can obtain high hydrogen utilization by a comparatively simple system. Nevertheless, the accumulation of the nitrogen and the water in the anode channels can lead to a local fuel starvation, which degrades the performance and durability of PEMFCs. In this paper, the behaviors of PEMFCs with a DEA are explored experimentally by detecting the current distribution and the local potentials. The results indicate that the current distribution is uneven during the DEA operation. The local current firstly decreases at the region near the anode outlet, and then extends to the inlet region along the channels with time. The complete fuel starvation near the anode outlet leads to a high local potential and carbon corrosion on the cathode side. The SEM images of the cathode electrode reveal that the significant thickness reduction and the collapse of the electrode's porous structure happen in the cathode catalyst layer, leading to the irreversible decline of the performance. The comparison of the experiments with different oxidants and fuels reveals that the nitrogen crossover from cathode to anode is the dominant factor on the performance decline under the DEA operations. (C) 2013 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000326661100013
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145876
专题中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, Sch Chem Machinery, Dalian 116024, Liaoning, Peoples R China
2.Chinese Acad Sci, Fuel Cell Syst & Engn Lab, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Sunrise Power Co Ltd, Dalian 116085, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Yu, Jianliang,Jiang, Zuwei,Hou, Ming,et al. Analysis of the behavior and degradation in proton exchange membrane fuel cells with a dead-ended anode[J]. JOURNAL OF POWER SOURCES,2014,246:90-94.
APA Yu, Jianliang.,Jiang, Zuwei.,Hou, Ming.,Liang, Dong.,Xiao, Yu.,...&Yi, Baolian.(2014).Analysis of the behavior and degradation in proton exchange membrane fuel cells with a dead-ended anode.JOURNAL OF POWER SOURCES,246,90-94.
MLA Yu, Jianliang,et al."Analysis of the behavior and degradation in proton exchange membrane fuel cells with a dead-ended anode".JOURNAL OF POWER SOURCES 246(2014):90-94.
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