中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Effects of reverse voltage and subzero startup on the membrane electrode assembly of a PEMFC
作者: Wang, Hongwei;  Hou, Junbo;  Yu, Hongmei;  Sun, Shucheng
通讯作者: 王洪卫
关键词: degradation ;  reverse voltage ;  MEA ;  hydrogen pump ;  PEMFC
刊名: JOURNAL OF POWER SOURCES
发表日期: 2007-02-25
DOI: 10.1016/j.jpowsour.2006.11.070
卷: 165, 期:1, 页:287-292
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]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: Effects 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.
关键词[WOS]: FUEL-CELLS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000245093800035
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98849
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.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:
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.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, Hongwei]'s Articles
 [Hou, Junbo]'s Articles
 [Yu, Hongmei]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, Hongwei]‘s Articles
 [Hou, Junbo]‘s Articles
 [Yu, Hongmei]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace