Gas electrode production process, especially for proton exchange membrane fuel cell electrodes comprises chemically reducing platinum anions impregnated into heat treated carbon

摘要

Membrane-type fuel cell gas electrode production involves impregnating heat treated carbon with a platinum anion solution and chemically reducing the platinum. Production of a gas electrode for a membrane-type fuel cell comprises subjecting carbon to heat treatment, and then impregnation with a solution of platinum anions prior to mixing the carbon with an ionic solution and deposition of the mixture on a carbonaceous support, the platinum being reduced by a chemical method. An Independent claim is also included for a PEM (proton exchange membrane) fuel cell having one or more electrodes produced by the above process. Preferred Features: Chemical reduction is carried out by electrode immersion in a molecular hydrogen saturated aqueous solution or by exposure to a gaseous hydrogen stream.