Measurement of Water Transport Properties Through Membrane-Electrode Assemblies
Abstract
A method using a hydrogen pumping cell to measure the electro-osmotic drag (EOD) coefficient of Gore-Select membranes is described. This technique was verified with the measurement of Nafion membranes, yielding results comparable with those reported in the literature and hence supporting its validity for various types of membranes. The EOD coefficient of Gore-Select membranes was measured to be 1.07 over the wide relative humidity range between and 95%. An approach was also proposed to characterize the water concentration at the interface between the membrane and the cathode catalyst layer using high-frequency resistance measurement in an operating fuel cell. Based on the information of water concentrations on both sides of the membrane and the water diffusive flux across the membrane, the water diffusion coefficient of Gore-Select membranes was experimentally determined. It was found that the water diffusion coefficient of Gore-Select membranes is roughly half that of Nafion membranes based on the best fit of our available data in this work.
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Several later studies have presented evidence that the electroosmotic drag coefficient is constant and very close to unity up to a critical water content associated with the liquid-equilibration phase transition, whereafter it rises linearly.
“However, several later studies have presented evidence that the electroosmotic drag coefficient is constant and very close to unity up to a critical water content associated with the liquid-equilibration phase transition, whereafter it rises linearly (data tabulated in Table 7) [80,87,103,107]”
From Modelling the Proton-Conductive Membrane in Practical Polymer Electrolyte Membrane Fuel Cell (PEMFC) Simulation: A Review (2020) · cites this paper as [103]
Cites
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A phenomenological model of water transport in a proton exchange membrane fuel cell
Janssen, G. J. M. (2001) · Journal of The Electrochemical Society · doi:10.1149/1.1415031 · Cited by 164 · see citing works
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New Insights into Perfluorinated Sulfonic-Acid Ionomers
Kusoglu, A., & Weber, A. Z. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00159 · Cited by 2,432 · see citing works
Dickinson, E. J. F., & Smith, G. (2020) · Membranes · doi:10.3390/membranes10110310 · Cited by 101 · see citing works
Water transport through a PEM fuel cell: A one-dimensional model with heat transfer effects
Falcão, D. S., Oliveira, V. B., Rangel, C. M., Pinho, C., & Pinto, A. M. F. R. (2009) · Chemical Engineering Science · doi:10.1016/j.ces.2009.01.049 · Cited by 80 · see citing works
Effect of Interfacial Water Transport Resistance on Coupled Proton and Water Transport Across Nafion
Cheah, M. J., Kevrekidis, I. G., & Benziger, J. (2011) · The Journal of Physical Chemistry B · doi:10.1021/jp204785t · Cited by 68 · see citing works
- Authors
- Ye, X., & Wang, C.-Y.
- Affiliations
- Pennsylvania State University (US)
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 2007
- Volume
- 154
- Issue
- 7
- Pages
- B676
- ISSN
- 0013-4651 (ISSN-L)
- OpenAlex
- W1812273008
- Cited by
- 106
- References
- 2
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 1 · 2023: 8 · 2022: 3 · 2021: 4 · 2020: 8 · 2019: 7 · 2018: 4 · 2017: 4 · 2016: 8 · 2015: 2 · 2014: 5 · 2013: 3 · 2012: 4
- FWCI
- 9.77
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of The Electrochemical Society (publishedVersion)
- 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 › Materials Science › Materials Chemistry › Advancements in Solid Oxide Fuel Cells
- Keywords
- membrane electrode assembly, water transport properties, Nafion membrane, water diffusion coefficient, proton exchange membranes, relative humidity
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