Patent ID: 8071259
Filing Date: 2011-12-06
Classification: B01J,B22F,B82Y,H01M,Y02E,Y02P

Abstract:
1. A process for the catalytic coating of a polymer electrolyte membrane which comprises the steps of: a) preparing an aqueous noble metal nanoparticle solution comprising noble metal nanoparticles embedded in an aqueous solution of a temporary stabilizer which is a polysaccharide, wherein said aqueous solution has a pH in the range of 5.5 to 7.5; b) applying said aqueous noble metal nanoparticle solution to the polymer electrolyte membrane to form a coated polymer electrolyte membrane, and c) reprotonating the polymer electrolyte membrane and decomposing the temporary stabilizer by treating the coated polymer electrolyte membrane in sulfuric acid.