Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Reexamination Certificate
2005-04-18
2009-08-04
Hailey, Patricia L (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
C502S101000, C502S182000, C502S527150, C502S527240, C429S047000, C429S047000, C429S047000, C429S047000, C429S047000
Reexamination Certificate
active
07569509
ABSTRACT:
The present invention provides a method for producing a catalyst for a fuel cell comprising:a step for forming an inverted micelle consisting of an aqueous solution containing the iridium compound clathrated by a surfactant, by mixing an organic solvent containing said surfactant, and the aqueous solution containing said iridium compound;a step for forming a fine iridium particle aggregate by insolubilization treatment of said iridium compound;a step for impregnating said fine iridium particle aggregate with an aqueous solution containing a platinum compound;a step for obtaining a solution containing the inverted micelle clathrating the fine iridium particle aggregate containing platinum by reducing said platinum compound and depositing platinum metal in said fine iridium particle aggregate;a step for supporting said fine iridium particle aggregate containing platinum on a conductive carrier by dispersing said conductive carrier in said solution; anda step for firing the conductive carrier whereon said fine iridium particle aggregate containing platinum is supported.
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Foley & Lardner LLP
Hailey Patricia L
Nissan Motor Co,. Ltd.
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