High Temperature Ceramic Proton Exchange Membranes for Direct Methanol Fuel Cells

被引：0

作者：

Lu, Shanfu ^{[1
]}

Wang, Deli ^{[2
]}

Xiang, Yan ^{[1
]}

Jiang, San Ping ^{[2
]}

机构：

[1] Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

来源：

FUEL CELL SEMINAR 2009 | 2010年 / 26卷 / 01期

关键词：

COMPOSITE MEMBRANES; NAFION MEMBRANES; CONDUCTIVITY; ELECTROLYTES; PERFORMANCE; CATALYSTS; WATER;

D O I：

10.1149/1.3428997

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel inorganic proton exchange membrane based on H3PW12O40 (HPW)/MCM-41 mesoporous silica nanocomposites was successfully prepared by a simple vacuum-assisted impregnation method (VIM). The VIM-assembled HPW/MCM-41 electrolyte has a high proton conductivity of 0.018 and 0.045 Scm(-1) at 25 and 150 degrees C, respectively. Single fuel cells based on VIM-30wt% HPW/MCM-41 composite membranes produced a peak power density of 95 mWcm(-2) at 100 degrees C and 100% RH in H-2/O-2 and 90 mWcm(-2) at 150 degrees C and a low relative humidy of 0.67%. The results demonstrate for the first time that the VIM-assembled HPW/MCM-41 mesoporous silica can be used as effective proton exchange membrane for elevated high temperature PEMFCs and DMFCs.

引用

页码：269 / 277

页数：9

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