Proton Exchange Membrane (PEM) Material Synthetic Design for Fuel Cells

被引：0

作者：

Michael DGuiver ^{[1
]}

DaeSik Kim ^{[1
]}

Gilles PRobertson ^{[1
]}

Yu Seung Kim ^{[2
]}

Bryan SPivovar ^{[2
]}

机构：

[1] Institute for Chemical Process and Environmental Technology,National Research Council

[2] Materials Physics & Applications, Sensors and Electrochemical Devices Group Los Alamos National Laboratory,Los Alamos,NM ,USA

来源：

复旦学报(自然科学版) | 2007年 / 05期

关键词：

proton exchange membrane (PEM); fuel cell; membrane electrode assemblies;

D O I：

10.15943/j.cnki.fdxb-jns.2007.05.115

中图分类号：

TM911.4 [燃料电池];

学科分类号：

0808 ;

摘要：

<正>1 Results Hydrocarbon PEM materials are being widely studied as replacements for Nafion-type perfluorinated polymeric materials to reduce cost and improve performance such as operating temperature and methanol crossover in the DMFC application. Among some of the important property considerations required are thermal and chemical stability, low dimensional swelling, low methanol permeability in the case of DMFC and high proton conductivity. Careful structural design can reduce the effect of swelling associated with increased proton conductivity brought about by increasing the sulfonic acid content or ion exchange capacity (IEC). Several promising synthetic strategies for improved PEM materials have been explored such as incorporation of nitriles to introduce dipolar chain interactions, more ordered homopolymer PEM designs, and unique comb-shaped polymer architecture. In the latter case, the comb-shaped PEMs exhibit clear phase-separated morphology and high proton conductivities. These PEM materials and data of their respective membrane electrode assemblies (MEAs) will be discussed.

引用

页码：678 / 678

页数：1