Phenyl vs. Ethyl Spacer-Incorporated Sulfonated Poly(arylene alkylene) Membranes for Proton-Exchange-Membrane Water Electrolysis
The pursuit of durable and high-performance proton exchange membranes via rational molecular design is crucial for advancing green hydrogen production through water electrolysis. Two series of sulfonated polyaromatic polymers were synthesized via a facile superacid polycondensation followed by postsulfonation, one be...