Novel crosslinked membranes based on sulfonated poly(ether ether ketone) for direct methanol fuel cells

Novel covalently crosslinked membranes based on sulfonated poly(ether ether ketone) and carboxylated polysulfone exhibit much lower methanol crossover and better performance in direct methanol fuel cells at 65 degrees C in 1 and 2 M methanol solutions compared to Nafion 115 membranes.