Patent ID: 6462095
Filing Date: 2002-10-08
Classification: B01J,H01M,Y02E

Abstract:
A process for preparing metal colloid solutions by reacting a platinum compound and, if desired, one or more compounds of Rh, Ru, Ir or Pd with a reducing agent, wherein at least one cation-exchange polymer selected from the group consisting of: sulfonated polyaryl ether ketones, sulfonated polyether sulfones, sulfonated polyphenylene sulfides and sulfonated acrylonitrile-butadiene-styrene copolymers (ABS) poly(&agr;,&bgr;,&ggr;-trifluorostyrene-sulfonic acids) and poly(polyfluoroethylene-co-2-(1-methyl-2-vinyloxyethoxy)ethane sulfonic acid) is used for stabilizing the metal colloid solution.