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Cation and Water Diffusion in Nafion Ion Exchange Membranes: Influence of Polymer Structure
Open accessAbstract
Membrane self‐diffusion coefficients for sodium ion, cesium ion, and water have been measured for Nafion® 120 perfluorosulfonate ion exchange membranes. Values have been determined as a function of temperature, and as a function of membrane water content by studying samples in heteroionic forms. The diffusional properties of this polymer are found to differ from those of conventional polystyrenesulfonates in several respects, and the free volume theory which describes ionic diffusion in the latter is inappropriate to treat Nafion. Results indicate that cations may exist in two distinct regions in the polymer; the proportion of total cations in each region may depend on the ions size and charge density. A structural model of Nafion, which correlates the membrane's spectroscopic and diffusional properties, is proposed to explain the results.
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Cited by
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Weber, A. Z., & Newman, J. (2004) · Chemical Reviews · doi:10.1021/cr020729l · Cited by 738
Design and properties of functional hybrid organic–inorganic membranes for fuel cells
Laberty-Robert, C., Vallé, K., Pereira, F., & Sanchez, C. (2011) · Chemical Society Reviews · doi:10.1039/c0cs00144a · Cited by 527
Soluble sulfonated naphthalenic polyimides as materials for proton exchange membranes
Genies, C., Mercier, R., Sillion, B., Cornet, N., Gebel, G., & Pineri, M. (2001) · Polymer · doi:10.1016/s0032-3861(00)00384-0 · Cited by 527
Metadata
- Authors
- Yeager, H. L., & Steck, A.
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 1981-09-01
- Volume
- 128
- Issue
- 9
- Pages
- 1880-1884
- ISSN
- 0013-4651 (ISSN-L)
- 1945-7111
- OpenAlex
- W2043837846
- Cited by
- 537
- References
- 0
- FWCI
- 6.63
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Yeager, H. L., & Steck, A. (1981). Cation and Water Diffusion in Nafion Ion Exchange Membranes: Influence of Polymer Structure. Journal of The Electrochemical Society. https://doi.org/10.1149/1.2127757
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