Continuous channels created by self-assembly of ionic cross-linked polysiloxane-Nafion nanocomposites

被引：15

作者：

Chen, Wei-Fu ^{[1
,2
]}

Shen, Yu-Cheng ^{[1
]}

Hsu, Huang-Ming ^{[1
]}

Kuo, Ping-Lin ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem Engn, Tainan, Taiwan

[2] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

来源：

POLYMER CHEMISTRY | 2012年 / 3卷 / 08期

关键词：

PROTON-CONDUCTING MEMBRANES; FUEL-CELL APPLICATIONS; COMPOSITE MEMBRANES; WATER; POLYMER; ELECTROLYTE; STATE;

D O I：

10.1039/c2py20203d

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ionically cross-linked ionomers have been developed via sol-gel chemistry by introducing poly(vinylimidazole)-functionalized mercaptopropyltrimethoxysilane into Nafion. The cross-linked polysiloxane framework endows the membrane with homogeneity and good stability. The ionical cross-linking enables the self-assembly between the inorganic framework and Nafion, which produces concentrated and inter-connected channels. This structure offers a practicably effective blocking effect to minimize the methanol cross-over problem in DMFCs, and improves the power output by 35% in comparison with a commercial Nafion membrane.

引用

页码：1991 / 1995

页数：5

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