Platinum alloy catalyst

B - Operations – Transporting – 01 – J

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Details

B01J 23/42 (2006.01) B01J 23/52 (2006.01) B01J 23/68 (2006.01) H01M 4/92 (2006.01)

Patent

CA 2575806

A platinum alloy catalyst that can be used as a fuel cell catalyst is disclosed. The platinum alloy is a PtAuX alloy wherein X is one or more metals chosen from the group consisting of transition metals, and wherein the alloy contains 40-97% Pt, 1-40% Au and 2-20% X. Electrodes, catalysed membranes and membrane electrode assemblies comprising the catalyst are also disclosed.

La présente invention concerne un catalyseur à alliage de platine qui peut être utilisé comme un catalyseur de pile à combustible. L'alliage de platine est un alliage PtAuX où X représente un métal ou plusieurs métaux choisi(s) dans le groupe constitué des métaux de transition, l'alliage comprenant de 40 à 97 % de Pt, de 1 à 40 % de Au et de 2 à 20 % de X. Sont décrits également des électrodes, des membranes catalysées et des ensembles électrode - membrane qui comprennent ledit catalyseur.

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