PROCESS FOR PREPARING A SOLID POLYMER ELECTROLYTE MEMBRANE

摘要

A process for preparing a solid polymer electrolyte membrane comprising an i on- conducting polymer, a catalyst and a high surface area support material, whi ch process comprises: (a) associating the catalyst with the support material to form a catalysed support; and (b) combining the catalysed support with an io n- conducting polymer composition; is disclosed. Also disclosed is a membrane electrode assembly and a fuel cell comprising a solid polymer electrolyte membrane prepared by the process of the invention.