Interaction and Transport of Carbon Dioxide in Alkaline Anion Exchange Membranes

Transient measurements of CO 2 cross-over through Tokuyama A201 membranes were made utilizing a permeation cell setup. The transient data was analyzed using a classical Fickian based model. Results were compared to Nafion 117 and it was found that the characteristic behavior of the transient data wa...

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Bibliographic Details
Main Authors: Myles, Timothy D., Ren, Xiaoming, Grew, Kyle N., Chiu, Wilson K. S.
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:Transient measurements of CO 2 cross-over through Tokuyama A201 membranes were made utilizing a permeation cell setup. The transient data was analyzed using a classical Fickian based model. Results were compared to Nafion 117 and it was found that the characteristic behavior of the transient data was different between the two membranes. Nafion 117 followed closely with the exponential behavior dictated by the Fickian based model while the A201 membrane displayed a behavior more closely resembling a sigmoid curve. The reason for this behavior is hypothesized to be related to either a breakdown of the modeling assumptions or the interaction of the alkaline membrane with CO 2 .
ISSN:1938-5862
1938-6737
DOI:10.1149/05801.0431ecst