Experimental determination of electro-osmotic drag coefficient in Nafion membrane for fuel cells

	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
卷号	153 期号:8 页码:a1443-a1450
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.
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
收录类别	SCI
语种	英语
WOS记录号	WOS:000238470100003
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140122]
专题	大连化学物理研究所_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
推荐引用方式 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.