Transport properties of materials based on MF-4SC membranes and silica manufactured by a casting method |
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Authors: | E. Yu. Safronova A. B. Yaroslavtsev |
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Affiliation: | 1.Kurnakov Institute of General and Inorganic Chemistry,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | Composites based on MF-4SC perfluorinated cation-exchange membranes were manufactured by casting from a polymer solution with a precursor for subsequent use in the synthesis of hydrous silica. Their proton conductivity was studied as a function of composition, temperature, and relative humidity. Modification of MF-4SC with small dopant amounts increases the water content and ion conductivity, in a reduced humidity, too. Materials containing 3% SiO2 by weight have a maximal conductivity. |
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