ELECTROCATALYSEUR A BASE D'OXYDES REDUITS DE METAUX DU GROUPE DU PLATINE, STABILISES THERMIQUEMENT

• Main Author: ANTHONY BASIL LACONTI, THOMAS GEORGE CUKOR ET THOMAS RUSSELL MASON DEMPSEY
• Format: Patent
• Language: French
• Published: 06.07.1979
• Subjects: APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

ELECTROCATALYSEUR RESISTANT MIEUX AU MILIEU D'ELECTROLYSE CORROSIF.IL COMPREND AU MOINS UN OXYDE REDUIT ELECTROCONDUCTEUR D'UN METAL DU GROUPE DU PLATINE STABILISE THERMIQUEMENT.APPLICATION A L'ELECTROLYSE DE SOLUTIONS AQUEUSES D'ACIDE CHLORHYDRIQUE OU DE SAUMURE. An electrocatalytic material comprising at least one reduced platinum group metal oxide is subsequently heated in the presence of oxygen at a temperature high enough to stabilized the catalyst in acidic and halogen environments. The catalyst optionally contains other thermally stabilized, reduced platinum group metal oxides, electroconductive extenders of the group consisting of graphite and oxides of valve metals. A novel electrode structure includes the catalyst and a polymeric binder. A unitary electrolyte/electrode structure has an electrode containing the electrocatalytic material bonded to at least one side of a membrane-electrolyte.