Synthesis and characterization of composite membranes based on α-zirconium phosphate and silicotungstic acid

被引：113

作者：

Helen, M.

Viswanathan, B. ^{[1
]}

Murthy, S. Srinivasa

机构：

[1] Indian Inst Technol, Dept Chem, Natl Ctr Catalysis Res, Madras 600036, Tamil Nadu, India

[2] Indian Inst Technol, Dept Mech Engn, Madras 600036, Tamil Nadu, India

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 292卷 / 1-2期

关键词：

composite membrane; methanol crossover; zirconium phosphate; silicotungstic acid;

D O I：

10.1016/j.memsci.2007.01.018

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The functional proper-ties of the composite membrane generated from polyvinyl alcohol, zirconium phosphate and silicotungstic acid are described. The fabricated membranes were characterized by using FT-IR, XRD, TGA, DSC and SEM techniques. These fabricated membranes showed reduced methanol cross over (for possible application in DMFC) relative to that of Nation (R) 115. A maximum proton conductivity of 10(-2) S cm(-1) at 60% RH was attained with 30 wt% STA incorporated composite membrane. This is however lower than that observed for Nafion (R) 115 at 100% RH. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：98 / 105

页数：8

共 42 条

[1] DSC and conductivity studies on PVA based proton conducting gel electrolytes [J].