Patents Represented by Attorney Panela J. Curbelo

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  • Carbon monoxide tolerant platinum-tantalum alloyed catalyst
    Patent number: 5183713
    Abstract: Carbon monoxide poisoning of anode catalysts in phosphoric acid fuel cells reduces the cell performance. The carbon monoxide absorbs onto the catalyst, blocking hydrogen oxidation sites. A carbon monoxide tolerant platinum-tantalum alloyed catalyst includes between about 2 wt % and about 50 wt % platinum, between about 2 atom % and 10 atom % tantalum deposited on a support. This catalyst is particularly useful in fuel cell system applications where the fuel stream may contain carbon monoxide.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: February 2, 1993
    Assignee: International Fuel Cells Corporation
    Inventor: Harold R. Kunz