Diffusion of Water in Nafion 115 Membranes
Open accessAbstract
In this paper, experimental and simulated data for the diffusion of water across Nafion membranes as a function of the water activity gradient are presented. The gradient in the activity of water across the membrane was varied by changing the flow rate and pressure of nitrogen gas on one side of the membrane. The other side of the membrane was equilibrated with liquid water. It was found that the model predictions are very sensitive to the value of the diffusion coefficient of water in Nafion. Using the Fickian diffusion coefficient extracted from self‐diffusion measurements reported in the literature, the model simulations matched experimental data with less than 5% error over a wide range of operating conditions. © 2000 The Electrochemical Society. All rights reserved.
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The original water diffusivity fit used by Springer et al. was reported incompletely and is now deprecated because it was later refined by Motupally et al.
“The original fit used by Springer et al. was reported incompletely [39] and is now deprecated, since it was later refined by Motupally et al. [83]”
From Modelling the Proton-Conductive Membrane in Practical Polymer Electrolyte Membrane Fuel Cell (PEMFC) Simulation: A Review (2020) · cites this paper as [83]
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- Authors
- Motupally, S., Becker, A. J., & Weidner, J. W.
- Affiliations
- University of South Carolina (US)
- DuPont (United States) (US)
- ORCID
- Weidner, John W.
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 2000
- Volume
- 147
- Issue
- 9
- Pages
- 3171
- ISSN
- 0013-4651 (ISSN-L)
- OpenAlex
- W2054509680
- Cited by
- 478
- References
- 0
- Citations by year
- 2026: 16 · 2025: 18 · 2024: 21 · 2023: 17 · 2022: 21 · 2021: 28 · 2020: 23 · 2019: 15 · 2018: 17 · 2017: 9 · 2016: 13 · 2015: 18 · 2014: 27 · 2013: 23 · 2012: 23
- FWCI
- 4.32
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of The Electrochemical Society (publishedVersion)
- Scholar Commons (University of South Carolina) (submittedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Engineering › Biomedical Engineering › Membrane-based Ion Separation Techniques
- Physical Sciences › Engineering › Mechanical Engineering › Membrane Separation and Gas Transport
- Keywords
- water diffusion, Nafion 115, proton exchange membranes, self-diffusion, nitrogen pressure, membrane transport modeling
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