The effect of heteropoly acids on stability of PFSA PEMs under fuel cell operation

被引：48

作者：

Haugen, Gregory M. ^{[1
]}

Meng, Fanqin

Aieta, Niccolo V.

Horan, James L.

Kuo, Mei-Chen

Frey, Matthew H.

Hamrock, Steven J.

Herring, Andrew M.

机构：

[1] 3M Co, Fuel Cell Components Program 3M, St Paul, MN 55144 USA

[2] 3M Corp, Res Mat Lab, St Paul, MN 55144 USA

[3] Dept Chem Engn, St Paul, MN 55144 USA

[4] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 03期

关键词：

D O I：

10.1149/1.2409057

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

Membranes were cast from mixtures of the 3M perfluorinated sulfonic acid ionomer [side chain -O-(CF2)(4)-SO3H] and various heteropoly acids (HPAs ) at a 10 or 20 wt % doping level. Membrane electrode assemblies (MEAs ) fabricated from these membranes were subjected to a fuel cell testing protocol from 70 to 100 degrees C under relatively dry conditions, dew point of 70 degrees C, to avoid leaching of the HPA. The most significant finding was that the more stable HPAs, H4SiW12O40, alpha-H3P2W18O62, and H6P2W21O71, reduce the rate of F- by over half and improve the power of the MEA by 9% under these conditions. c 2006 The Electrochemical Society.

引用

页码：B51 / B55

页数：5

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