Anion Exchange Membrane Ionic Conductivity in the Presence of Carbon Dioxide under Fuel Cell Operating Conditions

被引：14

作者：

Wrubel, Jacob A. ^{[1
]}

Peracchio, Aldo A. ^{[1
]}

Cassenti, Brice N. ^{[1
]}

Myles, Timothy D. ^{[1
]}

Grew, Kyle N. ^{[2
]}

Chiu, Wilson K. S. ^{[1
]}

机构：

[1] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA

[2] US Army, Sensors & Elect Devices Directorate, Res Lab, Adelphi, MD 20783 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2017年 / 164卷 / 12期

关键词：

ALKALINE MEDIA; METHANOL OXIDATION; TRANSPORT; TEMPERATURE; PERFORMANCE; ELECTROSPUN; HYDROXIDE; WATER;

D O I：

10.1149/2.0331712jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This study quantitatively describes the carbonate- and bicarbonate-forming reaction mechanisms in an operating alkaline exchange membrane fuel cell that occur as a result of carbon dioxide in the cathode gas stream. A transient, spatially-averaged theoretical model was created for this study and validated to experimental data from the literature. Results present the prediction of the membrane's ionic conductivity as a function of operating conditions and membrane properties. The self-purging phenomenon was observed and studied, as well as the emission of carbon dioxide from the membrane during operation. Following the conductivity study, suggestions can be made for optimal operating conditions and membrane properties to improve fuel cell performance in the presence of carbon dioxide. (C) 2017 The Electrochemical Society. All rights reserved.

引用

页码：F1063 / F1073

页数：11

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