Fluoroalkylsilane/Nafion® Composite Electrolyte Membranes

被引：1

作者：

Kim, Bun Hyung ^{[1
]}

Park, Sung Burn ^{[1
]}

Oh, Myung-Hoon ^{[1
]}

Park, Yong-il ^{[1
]}

机构：

[1] Kumoh Natl Inst Technol, Sch Adv Mat & Syst Engn, Gumi 730701, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2011年 / 59卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

Direct methanol fuel cell; Methanol crossover; FAS; ANODIC-OXIDATION; METHANOL; WATER; PERVAPORATION; TEMPERATURE; STATE;

D O I：

10.3938/jkps.59.2811

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

FAS (fluoroalkylsilane)/Nafion (R) composite electrolyte membranes were successfully fabricated through a sol-gel method. The FAS consisting of a hydrophobic functional group and silanol ligands is impregnated in a Nafion (R) membrane. The prepared FAS/Nafion composite electrolyte membranes (FNCMs) containing hydrophobic FAS-derived silicate nano-particles in a Nafion (R) matrix showed a decrease in methanol crossover and a reduction in the humidity dependence without a large sacrifice of proton conductivity. The characteristics of the composite membranes, such as the microstructure, proton conductivity, solvent uptake and expansion rate, were investigated. Fuel cell operating tests were also performed using the prepared modified Nafion (R) membranes.

引用

页码：2811 / 2816

页数：6

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