| Download | - View final version: Transport properties of Nafion® membranes in concentrated solution environments (PDF, 1.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1149/1.2123797 |
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| Author | Search for: Yeager, H. L.; Search for: O'Dell, B.; Search for: Twardowski, Z. |
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| Format | Text, Article |
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| Subject | membranes; transport processes; polymer films; ion exchange; chemical equilibrium; sorption; osmosis; current efficiency; ion exchange; electrolysis |
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| Abstract | The transport properties of perfluorinated cation exchange membranes in chlor‐alkali cell solution environments have been studied using a newly designed membrane test cell. A radiotracer‐weight method was used to measure sodium ion and water transport numbers for two Nafion® perfluorosulfonate membranes. A homogeneous film shows rapidly decreasing sodium ion transport numbers with increasing Formula catholyte concentration, reaching a value of 0.56 mol F−1 with 12.5M solution at 80°C. A fabric‐backed material with a sulfonamide exchange site layer yields considerably higher values with a more complicated concentration dependence. Water transport numbers for the latter membrane are also higher; a value of about 3 mol F−1 is found for typical experiments in which the anolyte solution is Formula . Results are discussed in terms of the mechanism of ionic membrane transport in relation to polymer water and electrolyte sorption. |
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| Publication date | 1982-03-06 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23001337 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 9ca50f7e-5776-4103-bdb1-b6cbe37b62dd |
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| Record created | 2017-01-19 |
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| Record modified | 2020-06-02 |
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