Ternary platinum alloy catalyst

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United States of America Patent

PATENT NO 9923210
SERIAL NO

14224291

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Abstract

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A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.

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Patent Owner(s)

Patent OwnerAddress
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LIMITEDLONDON EC2V 7AD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ball, Sarah Cholsey, GB 4 9
Ralph, Thomas Robertson Chippenham, GB 24 155
Theobald, Brian Ronald Reading, GB 4 15
Thompsett, David Reading, GB 49 403

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