Bimetal supported catalyst based on platinum or silver, its manufacturing process and its use for electrochemical cells
AssigneeElf Atochem S.A.
InventorsFrancoise Andolfatto, Sylvain Miachon
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Abstract
The invention relates to a stabilized bimetal catalyst comprising an electrically conductive support and a metallic deposited coating consisting of a first metal M1 chosen from platinum and silver and a second metal M2, different from the first and chosen from the group consisting of platinum, silver, gold, ruthenium, iridium, rhodium and osmium. The invention also relates to a process for obtaining such a catalyst.
Claims19
A stabilized bimetal catalyst comprising an electrically conductive support and a non-continuous metallic deposited coating comprising a first metal M1 which is platinum or silver and a second metal M2, different from the first which is platinum, silver, gold, ruthenium, iridium, rhodium or osmium.
A process for obtaining a bimetal catalyst comprising an electrically conductive support and a metallic deposited coating comprising a first metal Ml which is platinum or silver and a second metal M2, different from the first, which is platinum, silver, gold, ruthenium, iridium, rhodium or osmium, comprising simultaneously impregnating an electrically conductive support with a solution of a metal salt of first metal M1 and second metal salt M2.
A stabilized bimetal catalyst comprising an electrically conductive support and a metallic deposited coating comprising a first metal M1 which is platinum or silver and a second metal M2, different from the first which is platinum, silver, gold, ruthenium, iridium, rhodium or osmium, having a mass ratio M1/M2 of the metals M1 and M2 of the metallic deposited coating at least equal to 1.
Dependencies are inferred from the claim text.