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Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC
Wang, Hongwei; Hou, Junbo; Yu, Hongmei; Sun, Shucheng; Wang HW(王洪卫); Wang HW(王洪卫)
KeywordDegradation Reverse Voltage Mea Hydrogen Pump Pemfc
Source PublicationJOURNAL OF POWER SOURCES
2007-02-25
DOI10.1016/j.jpowsour.2006.11.070
Volume165Issue:1Pages:287-292
Indexed BySCI
SubtypeArticle
Department3
Funding Project301
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectElectrochemistry ; Energy & Fuels
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS KeywordFUEL-CELLS
AbstractEffects of reverse voltage and frozen fuel cell startup on the membrane electrode assembly (MEA) were investigated for a proton exchange membrane fuel cell (PEMFC). A single cell was started from a subzero temperature by applying reverse voltage. The voltages applied to the cell were 0.8 and 1.2 V. The fuel cell performance was measured with a polarization curve and by cyclic voltammetry (CV), electrochemical impedance spectra (EIS), linear scan voltammetry (LSV) after each experiment. From the results, it was concluded that the catalyst activity, electrochemical active surface area (ECA) and the membrane were not damaged by the reverse voltage if the voltage was below 0.85 V. In contrast, a reverse voltage improved cell performance slightly. If the reverse voltage was larger than 0.85 V, the cell performance degraded. Another single cell with an active area of 128 cm(2) was started up at -15 degrees C by applying reverse voltage. The cell performance and MEA physical characteristic were tested before and after the freeze startup. From the results, the cell performance decayed MEA delamination was observed and the pore size distribution of the MEA changed. (c) 2007 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000245093800035
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/98849
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang HW(王洪卫); Wang HW(王洪卫)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Wang, Hongwei,Hou, Junbo,Yu, Hongmei,et al. Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC[J]. JOURNAL OF POWER SOURCES,2007,165(1):287-292.
APA Wang, Hongwei,Hou, Junbo,Yu, Hongmei,Sun, Shucheng,王洪卫,&王洪卫.(2007).Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC.JOURNAL OF POWER SOURCES,165(1),287-292.
MLA Wang, Hongwei,et al."Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC".JOURNAL OF POWER SOURCES 165.1(2007):287-292.
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