Elaboration and characterizations of Nafion composite membranes based on Phosphatoantimonic Acid

Abstract Composite membranes based on Nafion blended with phosphatoantimonic acid (H3) exhibit high conductivities associated to enhanced thermomechanical performances as compared to commercial Nafion 117 ®. The preliminary tests performed on MEAs based on these composites membranes allowed, for a given content in H3 i.e.10%, obtaining improved polarization curves as compared to the pristine membranes.