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Ion Transport Through Polyperfluorosulfonic Acid Membranes.

Published online by Cambridge University Press:  21 February 2011

T. Nguyen ,
J. Guante  and
N. Vanderborgh
T. Nguyen
Affiliation:
Advanced Engineering Technology Los Alamos National Laboratory Los Alamos, NM 87544
J. Guante
Affiliation:
Advanced Engineering Technology Los Alamos National Laboratory Los Alamos, NM 87544
N. Vanderborgh
Affiliation:
Advanced Engineering Technology Los Alamos National Laboratory Los Alamos, NM 87544
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Abstract

Water transport rates through Dow experimental polyperfluorosulfonic acid membranes were investigated by using dynamic thermogravimetry. A mathematical model was developed to describe water transport rates within the membrane. Values for the diffusion coefficient of water in membrane samples of the same equivalent weight but of three different thicknesses, 265, 4.0, and 7.0 mil, were obtained for temperatures of 60, 80, and 90° C. Results show that the diffusion coefficient of water increases with water content and temperature.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 135: Symposium M – Solid State Ionics I , 1988 , 367
Copyright
Copyright © Materials Research Society 1989

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