The US DOEs High Temperature Membrane Effort

被引：21

作者：

Martin, K. Epping ^{[1
]}

Kopasz, J. P. ^{[2
]}

机构：

[1] US DOE, Washington, DC 20585 USA

[2] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

FUEL CELLS | 2009年 / 9卷 / 04期

关键词：

Conductivity; Durability; Fuel Cell; Hydrogen; Membrane;

D O I：

10.1002/fuce.200800165

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The U.S. Department of Energy (DOE) is sponsoring research and development (R&D) efforts emphasising fuel cell membrane materials that can operate at temperatures up to 120 degrees C with no inlet humidification and at total pressures of <2.5 atm. Several different strategies are being investigated and will be discussed. Recent results have demonstrated improved conductivity at lower relative humidity (RH) compared to standard perfluorosulphonic acid membranes. At 120 degrees C, conductivity approaching 0.1 S cm(-1) has been achieved at 50% RH, an improvement over Nafion 112 by more than a factor of three. Detailed results of DOE sponsored research will be discussed, as well as incorporation of membranes into membrane electrode assemblies. Finally, the impact of the different strategies on durability will be discussed.

引用

页码：356 / 362

页数：7