CO-REMOVING CATALYST AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a CO-removing catalyst from which a nitrogen compound produced from the CO-removing catalyst during the operation of a fuel cell system and poisoning the electrode of a fuel cell is restrained from being caused, and to provide a method for manufacturing the CO-removing catalyst.

SOLUTION: This CO-removing catalyst is manufactured by depositing a nitrogen-containing ruthenium compound on a fire-resistant oxide carrier and made to have ≤0.5 wt% nitrogen content. The method for manufacturing the CO-removing catalyst comprises the steps of: depositing the nitrogen-containing ruthenium compound on the fire-resistant oxide carrier; and removing the nitrogen content of the deposited nitrogen-containing ruthenium compound.

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