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Experimental determination of electro-osmotic drag coefficient in Nafion membrane for fuel cells
Ge, SH; Yi, BL; Ming, PW
刊名JOURNAL OF THE ELECTROCHEMICAL SOCIETY
2006
DOI10.1149/1.2203934
153期:8页:A1443-A1450
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Materials Science, Coatings & Films
研究领域[WOS]Electrochemistry ; Materials Science
关键词[WOS]POLYMER-ELECTROLYTE MEMBRANES ; ION-EXCHANGE MEMBRANES ; MATHEMATICAL-MODEL ; WATER TRANSPORT ; PROTON CONDUCTIVITY ; ACID MEMBRANES ; DIFFUSION ; METHANOL ; MANAGEMENT ; SORPTION
英文摘要The electro-osmotic drag coefficient in Nafion 117 membrane is determined experimentally at different temperatures and water contents of the membrane. A pseudo-two-dimensional, steady-state diffusive model for water vapor transport through Nafion membrane based on nonequilibrium membrane/gas diffusion layer interface is presented to determine the electro-osmotic drag coefficient and average water content. For the membrane in contact with water vapor, the electro-osmotic drag coefficient increases with increasing water content or water activity in the membrane. At the same water activity, temperature does not show influence on the electro-osmotic drag coefficient in the membrane in contact with water vapor. For the membrane in contact with liquid water on both sides, the electro-osmotic drag coefficient in the membrane increases linearly with temperature. High-frequency resistances of the cells using Nafion 117 and 112 membranes are measured to evaluate the electro-osmotic drag coefficients obtained. The calculated membrane resistance based on a diffusive model agrees well with the experimental data under different operating conditions. (c) 2006 The Electrochemical Society.
语种英语
WOS记录号WOS:000238470100003
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被引频次:67[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/321008/140122
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Res & Dev Ctr, Dalian 116023, Peoples R China
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GB/T 7714
Ge, SH,Yi, BL,Ming, PW. Experimental determination of electro-osmotic drag coefficient in Nafion membrane for fuel cells[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2006,153(8):A1443-A1450.
APA Ge, SH,Yi, BL,&Ming, PW.(2006).Experimental determination of electro-osmotic drag coefficient in Nafion membrane for fuel cells.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,153(8),A1443-A1450.
MLA Ge, SH,et al."Experimental determination of electro-osmotic drag coefficient in Nafion membrane for fuel cells".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 153.8(2006):A1443-A1450.
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