PLATINUM - ALUMINUM ALLOY CATALYST FOR FUEL CELL, ITS MANUFACTURING PROCESS AND USE

PROBLEM TO BE SOLVED: To enhance activity and stability by making an object exist on a conductive carbon carrier in a cabonized shape having a specific platinum- aluminium carbide structure. SOLUTION: After an aqueous solution of platinum salt is added to a suspension obtained by suspending a conduc...

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Bibliographische Detailangaben
Hauptverfasser:	ROOBERUTO SHIYUBUARUTSU, ANDOREASU FUROINTO, GEERUHARUTO HAINTSU, TOOMASU REEMAN, KAARUUANTON SHIYUTARUTSU
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To enhance activity and stability by making an object exist on a conductive carbon carrier in a cabonized shape having a specific platinum- aluminium carbide structure. SOLUTION: After an aqueous solution of platinum salt is added to a suspension obtained by suspending a conductive carbon carrier in the water, a sufficient alkaline liquid is added, and pH is raised to 9, and platinum is deposited on the carrier. Next, after this platinum is reduced by a reducing agent, an aqueous solution of aluminum slat is added so that an atomic ratio of platinum to aluminum becomes 80:20 to 60:40, and an ammonia solution is added, and aluminum is deposited on the carrier, and a catalytic precursor is obtained. After this catalytic precursor is separated, cleaned and dried, it is calcined at 200 to 950 deg.C in an inert gas or a reductive atmosphere, and a platinum- aluminum carbide Pt3 AlC0.5 structure is formed.