Abstract
The permeability of four commercially available ion-exchange membranes, the cationic Nafion 125 (duPont) and Selemion CMV (Asahi Glass) membranes and the anionic Selemion AMV and DMV membranes, to vanadyl, VO2+, and vanadic, VO +2 , ions was studied. The results show that two important variables determine the usefulness of a membrane as a membrane separator in a redox cell. These are selectivity and membrane-electrolyte resistance. Only the DMV membrane was considered to meet the requirements of low permeability to vanadium cations and at the same time permitting H+ ions to go through the membrane, thereby providing a very low membrane-electrolyte resistance in the redox fuel cell.
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Oei, DG. Permeation of vanadium cations through anionic and cationic membranes. J Appl Electrochem 15, 231–235 (1985). https://doi.org/10.1007/BF00620938
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DOI: https://doi.org/10.1007/BF00620938