Tailor-Made Phosphorylated Polyvinyl Alcohol/Tungsten Polyoxometalate Proton Exchange Membrane for a Bio-Electrochemical Energy Storage System

Vassili Glibin, Vahid Vajihinejad, Victor Pupkevich and Dimitre G. Karamanev
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Vassili Glibin: Department of Chemical and Biochemical Engineering, University of Western Ontario, 1151 Richmond St., London, ON N6A 5B9, Canada
Vahid Vajihinejad: Department of Chemical and Materials Engineering, University of Alberta, 116k St. and 85 Ave., Edmonton, AB T6G 2R3, Canada
Victor Pupkevich: Department of Chemical and Biochemical Engineering, University of Western Ontario, 1151 Richmond St., London, ON N6A 5B9, Canada
Dimitre G. Karamanev: Department of Chemical and Biochemical Engineering, University of Western Ontario, 1151 Richmond St., London, ON N6A 5B9, Canada

Energies, 2021, vol. 14, issue 23, 1-13

Abstract: In this work, the synthesis of a phosphorylated polyvinyl alcohol (p-PVA)/polyoxometalate (tungsto-phosphate) membrane for the BioGenerator, a bio-electrochemical energy storage technology, is reported. It was shown that bonding of lacunary tungsto-phosphate ions to the carbon skeleton of a polymer matrix results in an increase in proton conductivity of up to 2.7 times, compared to previously studied phosphorylated PVA membranes. Testing of the membrane in an actual Fe 3+ /H 2 electrochemical cell showed that it performs significantly better (0.28 W·cm −2 at 0.79 A·cm −2 ) than the previously used commercial Selemion HSF (Japan) membrane (0.18 W·cm −2 at 0.60 A·cm −2 ).

Keywords: proton exchange membrane; energy storage; bio-electrochemical system; lacunary tungsto-phosphate (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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