Interfacial vs. Internal Water Transport Resistance of Sulfonated Hydrocarbon Proton-Exchange Membranes

被引：16

作者：

Zhao, Nana ^{[1
]}

Edwards, Dave ^{[1
]}

Shi, Zhiqing ^{[1
]}

Holdcroft, Steven ^{[1
,2
]}

机构：

[1] Natl Res Council Canada, Energy Min & Environm Portfolio, Vancouver, BC V6T 1W5, Canada

[2] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

来源：

ECS ELECTROCHEMISTRY LETTERS | 2013年 / 2卷 / 03期

关键词：

PEM FUEL-CELL; NAFION; SORPTION; PERMEATION; ACID; COPOLYMERS; DESORPTION; MORPHOLOGY; KINETICS; STATE;

D O I：

10.1149/2.009303eel

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Liquid-Vapor Water Permeation (LVP) through sulfonated poly(etheretherketone) (sPEEK) proton exchange membranes, measured upon exposure of membranes to liquid water on one side and water vapor on the other, is lower than for Nafion membranes. Thickness-dependent measurements reveal that both internal and interfacial resistances to water transport are larger for sPEEK membranes, despite sPEEK membranes possessing larger water contents and possessing more hydrophilic surfaces. This report brings to attention the importance of organized hydrophilic domains on net water transport, not just within the membrane, which is common knowledge, but also at its surface. (c) 2013 The Electrochemical Society. All rights reserved.

引用

页码：F22 / F24

页数：3

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