Morphological Factors Affecting the Behavior of Water in Proton Exchange Membrane Materials

Gilles M. Divoux; Katherine A. Finlay; Jong K. Park; Ju-Myung Song; Bing Yan; Mingqiang Zhang; David A. Dillard; Robert B. Moore

doi:10.1149/1.3635546

journal article Oct 04, 2011

Morphological Factors Affecting the Behavior of Water in Proton Exchange Membrane Materials

Gilles M. Divoux Katherine A. Finlay

Jong K. Park Ju-Myung Song Bing Yan

Mingqiang Zhang David A. Dillard

Robert B. Moore

ECS Transactions Vol. 41 No. 1 pp. 87-100 · The Electrochemical Society

View at Publisher Save 10.1149/1.3635546

Abstract

Perfluorosulfonic acid ionomers (PFSAs), such as Nafion®, have become the benchmark membrane material for proton exchange membrane fuel cells (PEMFCs). Despite their commercial success, little is known about the complex morphology-property relationships governing the chemical and physical properties. For example, the detailed structure of PFSA crystallites within the amorphous phase and the spatial arrangement of the crystallites around the ionic aggregates of PFSA materials are virtually unknown. In addition, the effect of processing on the membrane performance and durability in PEMFC applications is not yet fully understood. The first part of this work focuses on the significance of the crystalline component with respect to polymer-water interactions. The second part of this work addresses the impact on changes in morphology that could occur during long-term operation in a fuel cell including the effects of heat and humidity.

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Details

Published: Oct 04, 2011
Vol/Issue: 41(1)
Pages: 87-100
License: View

Authors

School of Psychology and Clinical Language Sciences University of Reading Reading UK

Cite This Article

Gilles M. Divoux, Katherine A. Finlay, Jong K. Park, et al. (2011). Morphological Factors Affecting the Behavior of Water in Proton Exchange Membrane Materials. ECS Transactions, 41(1), 87-100. https://doi.org/10.1149/1.3635546

Morphological Factors Affecting the Behavior of Water in Proton Exchange Membrane Materials

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