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Synthesis and characterization of MF-4SK + SiO2 hybrid membranes modified with tungstophosphoric heteropolyacid

  • Synthesis and Properties of Inorganic Compounds
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Abstract

Composites based on MF-4K perfluorinated cation-exchange membranes doped with hydrous silica nanoparticles, which were precipitated under various conditions, and with tungstophosphoric heteropolyacid nanoparticles were synthesized. The proton conductivity of the composites was studied as a function of temperature and relative ambient humidity. As a result of modification, the water content and ion conductivity of the membranes in low humidities increase by 2.5 orders of magnitude compared to unmodified MF-4SK membranes and the material is rendered less water-dependent.

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Original Russian Text © E.Yu. Safronova, I.A. Stenina, A.B. Yaroslavtsev, 2010, published in Zhurnal Neorganicheskoi Khimii, 2010, Vol. 55, No. 1, pp. 16–20.

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Safronova, E.Y., Stenina, I.A. & Yaroslavtsev, A.B. Synthesis and characterization of MF-4SK + SiO2 hybrid membranes modified with tungstophosphoric heteropolyacid. Russ. J. Inorg. Chem. 55, 13–17 (2010). https://doi.org/10.1134/S0036023610010031

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  • DOI: https://doi.org/10.1134/S0036023610010031

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