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题名: Investigation of resided water effects on PEM fuel cell after cold start
作者: Hou, Junbo1, 2;  Yi, Baolian1;  Yu, Hongmei1;  Hao, Lixing1, 2;  Song, Wei1, 2;  Fu, Yu1, 2;  Shao, Zhigang1
通讯作者: 俞红梅
关键词: proton exchange membrane (PEM) fuel cell ;  subzero ;  freezing ;  start-up ;  water amount ;  degradation
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2007-12-01
DOI: 10.1016/j.ijhydene.2007.05.004
卷: 32, 期:17, 页:4503-4509
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 301
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: The effects of the residual water in the PEM fuel cell after cold start on the performance, electrode electrochemical characteristics, and cell components were investigated by controlling the cold-start processes of three cells at -5 degrees C. Neither the cell performance loss nor the cell resistance increase with the start number was observed. There was no change in the electrochemical active surface area (ECA) and charge transfer resistance at low current density. The correlation between the amount of the residual water and the ohmic polarization and cell resistance showed mass-transport process slightly changed with the water amount in the cell. This trend correlated well with the charge transfer resistance at high current density. The change of mass-transport process came from the gas diffusion layer by the analysis of ECA. It was found that hydrogen crossover rate of the membrane at the three hydrated states did not change through eight start-ups at -5 degrees C. Based on the analysis of SEM and water-storage capacity, it was believed that less water was stored in the catalyst layer even though much water resided in the cell. (c) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: REPETITIVELY BROUGHT ;  CATALYST LAYER ;  MEMBRANE ;  PERFORMANCE ;  TEMPERATURE ;  ELECTRODE ;  DEGRADATION ;  SIMULATION ;  TRANSPORT ;  BEHAVIOR
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000251977800048
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99325
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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 Sch, Beijing 100039, Peoples R China

Recommended Citation:
Hou, Junbo,Yi, Baolian,Yu, Hongmei,et al. Investigation of resided water effects on PEM fuel cell after cold start[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2007,32(17):4503-4509.
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