Nano-TiO2-coated polymer electrolyte membranes for direct methanol fuel cells

被引：28
|
作者：
Liu, Zhaolin [1 ]
Guo, Bing [1 ]
Huang, Junchao [1 ]
Hong, Liang [1 ]
Han, Ming [1 ]
Gan, Leong Ming [1 ]
机构：
[1] Inst Mat Res & Engn, Singapore 117602, Singapore
来源：
JOURNAL OF POWER SOURCES | 2006年 / 157卷 / 01期
关键词：
TiO2; film; composite membrane; direct methanol fuel cell; protonic conductivity; methanol permeability;
D O I：
10.1016/j.jpowsour.2005.07.070
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Composite polymer electrolyte membranes with nano-TiO2 films are fabricated by deposition of titania nanoparticles from a sol solution. Measurements of ion conductivity, methanol permeability and single-cell performance of the modified Nation membranes are conducted. The TiO2 films adhere well and are crack-free. The protonic conductivity of the composite membranes decreases with increasing titania content, but methanol permeability is reduced. Preliminary tests on a single-cell of a direct methanol fuel cell (DMFC) indicate that a titania-coated membrane with 0.009 mg cm(-2) content gives the highest cell voltage and maximum power density. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：207 / 211
页数：5
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