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学科主题物理化学
Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells
Song, Wei; Yu, Hongmei; Shao, Zhigang; Yi, Baolian; Lin, Jin; Liu, Na; Yu HM(俞红梅); Shao ZG(邵志刚)
关键词Fuel Cell Gas Diffusion Layer Hydrophobicity Water Flooding
刊名CHINESE JOURNAL OF CATALYSIS
2014-04-01
DOI10.1016/51872-2067(14)60014-0
35期:4页:468-473
收录类别SCI
合作性质
文章类型Article
部门归属DNL03
项目归属DNL0301
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]DURABILITY
英文摘要The effect of polytetrafluoroethylene (PTFE) distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells was investigated. PTFE was introduced within micropores of carbon papers, to achieve hydrophobicity under different pressures. Carbon papers were subjected to vacuum conditions during immersion in PTFE solution to prepare gas diffusion layers. Residual gas within the carbon papers was eliminated, and PTFE evenly infused within the pores. Cross-sections of the carbon papers indicated that vacuum treatment improved PTFE distribution. The same PTFE content resulted in a decreased water contact angle of the carbon paper because of the greater PTFE content within the micropores. The proportions of hydrophobic and hydrophilic pores within the carbon papers were investigated. The proportion of hydrophobic pores increased during the vacuum treatment. Membrane electrode assemblies (MEAs) were fabricated using the treated hydrophobic carbon papers as gas diffusion layers and were evaluated in a full-sized fuel cell. The uniform PTFE distribution of the carbon paper benefited fuel performance. Electrochemical impedance spectroscopy indicated that the improved MEA possessed favorable resistance to water flooding. (C) 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
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WOS记录号WOS:000333781700004
引用统计
被引频次:8[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/321008/119762
专题中国科学院大连化学物理研究所
通讯作者Yu HM(俞红梅); Shao ZG(邵志刚)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Song, Wei,Yu, Hongmei,Shao, Zhigang,et al. Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells[J]. CHINESE JOURNAL OF CATALYSIS,2014,35(4):468-473.
APA Song, Wei.,Yu, Hongmei.,Shao, Zhigang.,Yi, Baolian.,Lin, Jin.,...&邵志刚.(2014).Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells.CHINESE JOURNAL OF CATALYSIS,35(4),468-473.
MLA Song, Wei,et al."Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells".CHINESE JOURNAL OF CATALYSIS 35.4(2014):468-473.
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