Electro-osmosis in Nafion 117, Polystyrene Sulfonic Acid, and Polybenzimidazole

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Published 22 November 2004 © 2004 ECS - The Electrochemical Society
, , Citation Bryan S. Pivovar et al 2005 J. Electrochem. Soc. 152 A53 DOI 10.1149/1.1827599

1945-7111/152/1/A53

Abstract

Electro-osmotic drag coefficients for Nafion 117, polystyrene sulfonic acid (CR61 CMP), and polybenzimidazole were investigated in the presence of phosphoric, sulfuric, and hydrochloric acid. The coefficients vary with acid concentration and type with polymer structure and with water content, as illustrated by conductivity, transference number, and partition coefficient measurements. The results have implications for fuel cell performance and in the development of new polymer electrolyte membranes. © 2004 The Electrochemical Society. All rights reserved.

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10.1149/1.1827599