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题名: Facilitating mass transport in gas diffusion layer of PEMFC by fabricating micro-porous layer with dry layer preparation
作者: Chen, Jian1;  Xu, Haifeng1;  Zhang, Huamin1;  Yi, Baolian1
通讯作者: 陈剑
关键词: proton exchange membrane fuel cell ;  gas diffusion layer ;  micro-porous layer ;  dry layer preparation ;  wet layer preparation
刊名: JOURNAL OF POWER SOURCES
发表日期: 2008-08-01
DOI: 10.1016/j.jpowsour.2008.04.031
卷: 182, 期:2, 页:531-539
收录类别: SCI ;  ISTP
文章类型: Article
部门归属: 3
项目归属: 303
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: For a proton exchange membrane fuel cell (PEMFC), dry layer preparation was optimized and applied to fabricate a micro-porous layer (MPL) for a gas diffusion layer (GDL). The MPLs fabricated by dry layer preparation and the conventional wet layer preparation were compared by physical and electrochemical methods. The PEMFC using dry layer MPLs showed better performance than that using wet layer MPLs, especially when the cells were operated under conditions of high oxygen utilization rate and high humidification temperature of air. The mass transport properties of the GDLs with the dry layer MPLs were also better than with the wet layer MPLs, and were found to be related to the pore size distribution in GDLs. The differences in surface morphology and pore size distribution for the GDLs with the dry layer and wet layer MPLs were investigated and analyzed. The dry layer preparation for MPLs was found to be more beneficial for forming meso-pores (pore size in the range of 0.5-15 mu m), which are important and advantageous for facilitating gas transport in the GDLs. Moreover, the GDLs with the dry layer MPLs exhibited better electronic conductivity and more stable hydrophobicity than those with the wet layer MPLs. The reproducibility of the dry layer preparation for MPLs was also satisfying. (c) 2008 Elsevier B.V. All rights reserved.
关键词[WOS]: ELECTROLYTE FUEL-CELLS ;  PERFORMANCE ;  MEDIA
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000257599500019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100463
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, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Jian,Xu, Haifeng,Zhang, Huamin,et al. Facilitating mass transport in gas diffusion layer of PEMFC by fabricating micro-porous layer with dry layer preparation[J]. JOURNAL OF POWER SOURCES,2008,182(2):531-539.
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