CATALYST-COATED PROTON EXCHANGE MEMBRANE AND PROCESS OF PRODUCING SAME

• Main Authors: BOUCHARD, PATRICK, SCHANK, WILLIAM, H, LAGACE, MARIN, BEBIN, PHILIPPE, BOUCHER, MARIO, HOVINGTON, PIERRE
• Format: Patent
• Language: English; French
• Published: 27.11.2008
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS BASED THEREON; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEPARATION; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; WORKING-UP

The catalyst-coated membrane has a proton exchange membrane with two opposite sides, and a catalyst coating applied directly to one of the two sides, the catalyst coating having a plurality of openings defined therethrough and scattered thereacross, the openings defining passages to the proton exchange membrane in which corresponding electro-chemical active surfaces of the catalyst coating are exposed. The openings can be defined in the catalyst coating after application thereof or during application thereof. La présente invention concerne la membrane couverte d'un catalyseur qui comporte une membrane d'échange de proton à deux côtés opposés et d'un revêtement de catalyseur appliqué directement à un des deux côtés, le revêtement comportant une pluralité d'ouvertures définies à travers et réparties sur sa surface ; elles définissent des passages pour la membrane d'échange de proton dans laquelle des surfaces électrochimiques actives du revêtement du catalyseur sont exposées. Les ouvertures peuvent être définies dans le revêtement du catalyseur après ou pendant leur application.