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A series of sulfonated poly(ether sulfone) copolymers (SPES-Xs) with varying degrees of sulfonation were prepared and investigated as ion-exchange membranes for vanadium redox flow battery (VRFB) applications. Sulfonated poly(thioether ether sulfone) copolymers (SPTES-Xs) were initially synthesized via polycondensation, and the SPES-Xs were then obtained by oxidation of the corresponding SPTES-Xs...
A hydrocarbon-membrane-based membrane electrode assembly (MEA) is fabricated by applying a thin bonding layer to a sulfonated poly(arylene ether sulfone) (SPAES) membrane to improve the interfacial adhesion between the membrane and electrodes. The bonding layer is applied on the surface of a SPAES membrane using a spraying technique to achieve an extremely thin layer (700-nm thick) that minimizes...
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