Composite Nafion/polyvinyl alcohol membranes for the direct methanol fuel cell

被引:161
作者
Shao, ZG [1 ]
Wang, X [1 ]
Hsing, IM [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China
关键词
fuel cell; composite membranes; barrier membrane; electrochemistry; pervaporation;
D O I
10.1016/S0376-7388(02)00386-1
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The methanol crossover in the direct methanol fuel cell (DMFC) can be reduced by casting a thin film containing the mixture of polyvinyl alcohol (PVA) and Nafion on a commercial perfluorosulfonic membrane (Nafion, Dupont). In addition to the cell polarization testing, a design factor defined as the reciprocal of the multiplication of the methanol permeation current density and membrane area resistance, was used to evaluate the membrane's performance. Our study has shown that at the weight ratio of 1: 1 in PVA and Nation, the thin film-coated Nafion membrane exhibits low methanol crossover and the membrane conductance can be improved by the sulfonation treatment. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:147 / 153
页数:7
相关论文
共 14 条
[1]   The degree and effect of methanol crossover in the direct methanol fuel cell [J].
Cruickshank, J ;
Scott, K .
JOURNAL OF POWER SOURCES, 1998, 70 (01) :40-47
[2]  
DELUGA G, 1999, P 3 INT S NEW MAT EL, P132
[3]   Modified Nafion 117 as an improved polymer electrolyte membrane for direct methanol fuel cells [J].
Hobson, LJ ;
Ozu, H ;
Yamaguchi, M ;
Hayase, S .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (10) :A1185-A1190
[4]   Modification of Nafion proton exchange membranes to reduce methanol crossover in PEM fuel cells [J].
Jia, NY ;
Lefebvre, MC ;
Halfyard, J ;
Qi, ZG ;
Pickup, PG .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2000, 3 (12) :529-531
[5]   Development of ionomer membranes for fuel cells [J].
Kerres, JA .
JOURNAL OF MEMBRANE SCIENCE, 2001, 185 (01) :3-27
[6]   Composite membranes for direct methanol fuel cells [J].
Libby, B ;
Smyrl, WH ;
Cussler, EL .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (12) :A197-A199
[7]   A direct methanol fuel cell based on a novel low-cost nanoporous proton-conducting membrane [J].
Peled, E ;
Duvdevani, T ;
Aharon, A ;
Melman, A .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2000, 3 (12) :525-528
[8]  
PU C, 1995, J ELECTROCHEM SOC, V142, pL119, DOI 10.1149/1.2044333
[9]   Effect of methanol crossover in a liquid-feed polymer-electrolyte direct methanol fuel cell [J].
Ravikumar, MK ;
Shukla, AK .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (08) :2601-2606
[10]   Water and methanol uptakes in nafion membranes and membrane effects on direct methanol cell performance [J].
Ren, X ;
Springer, TE ;
Gottesfeld, S .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (01) :92-98