Evaluation of methanol crossover in proton-conducting polyphosphazene membranes

被引：68

作者：

Fedkin, MV

Zhou, XY

Hofmann, MA

Chalkova, E

Weston, JA

Allcock, HR

Lvov, SN

机构：

[1] Penn State Univ, Ctr Adv Mat, Energy Inst, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Energy & Geoenvironm Engn, University Pk, PA 16802 USA

[3] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

来源：

MATERIALS LETTERS | 2002年 / 52卷 / 03期

关键词：

methanol crossover; diffusion coefficients; polyphosphazene electrolyte membranes; polymer electrolyte fuel cells;

D O I：

10.1016/S0167-577X(01)00391-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A diffusion cell was developed to evaluate the methanol crossover for a novel class of polyphosphazene electrolyte membranes. It was found that the methanol diffusion coefficients of phenyl phosphonic acid functionalized poly[aryloxyphosphazene] membranes in an aqueous methanol solution (50% v/v) were similar to40 times lower than for Nafion 117, and similar to10-20 times lower than for sulfonated polyphosphazene membranes. (C) 2002 Elsevier Science B,V. All rights reserved.

引用

页码：192 / 196

页数：5

共 14 条

[1]

ALLCOCK HR, IN PRESS

[2] AC-IMPEDANCE INVESTIGATIONS OF PROTON CONDUCTION IN NAFION(TM) [J].