Catalyst formation techniques
AssigneeLanxide Technology Company, LP
InventorRoger Lee Ken Matsumoto
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Abstract
The present invention relates to a process of depositing metals onto various substrates. Applications for which the present invention may be useful include the formation of catalysts such as those used in electrochemical applications, including fuel cells and the like, refining applications such as oil refining, automotive applications such as automotive catalytic converters, and other similar applications.
Claims17
A method for depositing at least one metal catalyst onto at least a portion of at least one substrate, said method comprising the steps of:
- placing onto at least a portion of at least one substrate, at least one mixture comprising at least one metallic compound and at least one indirect reducing agent;
- exposing at least a portion of said at least one substrate having said at least one mixture thereon to an energy source;
- contacting at least a portion of said at least one substrate with at least one developer to permit reduction of said at least one metallic compound.
A method for forming at least one component of a solid polymer electrolyte fuel cell comprising, depositing at least one metal catalyst onto at least a portion of at least one polymer substrate, said method comprising the steps of:
- placing onto at least a portion of said at least one polymer substrate, at least one mixture comprising a material comprising ferric oxalate and at least one metallic compound comprising at least one element selected from the group consisting of platinum, palladium, and ruthenium;
- exposing at least a portion of said at least one polymer substrate having said at least one mixture thereon to a source of electromagnetic radiation;
- contacting at least a portion of said at least one polymer substrate with at least one developer to permit reduction of said at least one metallic compound.
Dependencies are inferred from the claim text.