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学科主题物理化学
Reversible performance loss induced by sequential failed cold start of PEM fuel cells
Hou, Junbo1,2; Yu, Hongmei1; Yang, Min2; Song, Wei1; Shao, Zhigang1; Yi, Baolian1; Hou JB(侯俊波); Yu HM(俞红梅); Shao ZG(邵志刚)
关键词Pem Fuel Cells Cold Start Freeze Degradation Catalyst Layer Electrochemical Impedance
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2011-09-01
ISSN待补充
DOI10.1016/j.ijhydene.2011.06.100
36期:19页:12444-12451
收录类别SCI
文章类型Article
部门归属3
项目归属301
产权排名1,1
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
关键词[WOS]MEMBRANE-ELECTRODE ASSEMBLIES ; OXYGEN REDUCTION REACTION ; CATALYST LAYER ; ELECTROCHEMICAL IMPEDANCE ; PHYSICAL DEGRADATION ; SUBZERO TEMPERATURES ; FREEZE/THAW CYCLES ; MODEL ; PEFC ; MEDIA
英文摘要Reversible performance loss induced by sequential failed cold start of PEM fuel cells; This study correlates the post start cell performance and impedance with the cold start process in the subzero environment. The sequential failed cold starts are deliberately conducted as well as the start at small current density. Here the failed cold start means the cell voltage drops to or below zero within very short time during the start process. It is found that there are reversible performance losses for the sequential failed cold starts, while not obvious degradation and no recovery happen for the start at small current density. Using the thin film and agglomerate model, it is confirmed that this is due to the water blocking effect. Comparing the results from different start processes, a model with respect to the shifting of reactive region within the catalyst layer is applied to explain that the reversible performance loss is associated with the amount of the generated water or ice and the water location or distribution during cold start. The relationship of the cold start performance at high current density and the pore volume in the catalyst layer is also discussed. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000295657300042
引用统计
被引频次:13[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/321008/115435
专题中国科学院大连化学物理研究所
通讯作者Hou JB(侯俊波); Yu HM(俞红梅); Shao ZG(邵志刚)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cells Lab, Dalian 116023, Peoples R China
2.Univ Leoben, Dept Phys Chem, A-8700 Leoben, Austria
推荐引用方式
GB/T 7714
Hou, Junbo,Yu, Hongmei,Yang, Min,et al. Reversible performance loss induced by sequential failed cold start of PEM fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(19):12444-12451.
APA Hou, Junbo.,Yu, Hongmei.,Yang, Min.,Song, Wei.,Shao, Zhigang.,...&邵志刚.(2011).Reversible performance loss induced by sequential failed cold start of PEM fuel cells.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,36(19),12444-12451.
MLA Hou, Junbo,et al."Reversible performance loss induced by sequential failed cold start of PEM fuel cells".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 36.19(2011):12444-12451.
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