A COMPARATIVE-STUDY OF WATER-UPTAKE BY AND TRANSPORT THROUGH IONOMERIC FUEL-CELL MEMBRANES

Authors
ZAWODZINSKI TA SPRINGER TE DAVEY J JESTEL R LOPEZ C VALERIO J GOTTESFELD S
Citation
Ta. Zawodzinski et al., A COMPARATIVE-STUDY OF WATER-UPTAKE BY AND TRANSPORT THROUGH IONOMERIC FUEL-CELL MEMBRANES, Journal of the Electrochemical Society, 140(7), 1993, pp. 1981-1985
Citations number
18
Categorie Soggetti
Electrochemistry
Journal title
Journal of the Electrochemical Society → ACNP
ISSN journal
00134651
Volume
140
Issue
7
Year of publication
1993
Pages
1981 - 1985
Database
ISI
SICI code
0013-4651(1993)140:7<1981:ACOWBA>2.0.ZU;2-W
Abstract
Water uptake and transport parameters measured at 30-degrees-C for sev eral available perfluorosulfonic acid membranes are compared. The wate r sorption characteristics, diffusion coefficient of water, electroosm otic drag, and protonic conductivity were determined for Nafion(R) 117 , Membrane C, and Dow XUS 13204.10 developmental fuel cell membrane. T he diffusion coefficient and conductivity of each of these membranes w ere determined as functions of membrane water content. Experimental de termination of transport parameters, enables us to compare membranes w ithout the skewing effects of extensive features such as membrane thic kness which contributes in a nonlinear fashion to performance in polym er electrolyte fuel cells.