Michael R. Hibbs Alkaline stability of poly(phenylene)-based anion exchange membranes with various cations Journal of Polymer Science Part B: Polymer Physics 51
Interest is growing in hydroxide-ion-conducting anion exchange membrane fuel cells (AEMFCs), since they avoid high-cost noble metal catalysts as used in proton exchange membrane fuel cells. Here, a series of anion exchange membranes based on a poly-(phenylene) backbone and with various attached cations are studied. Whilst all five membranes have water uptake and ionic conductivity values that are promising for use in AEMFCs, the replacement of a benzylic methylene spacer with a hexamethylene spacer results in greater stability.
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