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Method of producing catalytic materials for fabricating nanostructures

United States Patent

February 19, 2013
View the Complete Patent at the US Patent & Trademark Office
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Methods of fabricating nano-catalysts are described. In some embodiments the nano-catalyst is formed from a powder-based substrate material and is some embodiments the nano-catalyst is formed from a solid-based substrate material. In some embodiments the substrate material may include metal, ceramic, or silicon or another metalloid. The nano-catalysts typically have metal nanoparticles disposed adjacent the surface of the substrate material. The methods typically include functionalizing the surface of the substrate material with a chelating agent, such as a chemical having dissociated carboxyl functional groups (--COO), that provides an enhanced affinity for metal ions. The functionalized substrate surface may then be exposed to a chemical solution that contains metal ions. The metal ions are then bound to the substrate material and may then be reduced, such as by a stream of gas that includes hydrogen, to form metal nanoparticles adjacent the surface of the substrate.
Seals; Roland D. (Oak Rdige, TN), Menchhofer; Paul A. (Clinton, TN), Howe; Jane Y. (Oak Ridge, TN), Wang; Wei (Oak Ridge, TN)
Babcock & Wilcox Technical Services Y-12, LLC (Oak Ridge, TN)
12/ 370,892
February 13, 2009
GOVERNMENT RIGHTS The U.S. Government has rights to this invention pursuant to contract number DE-AC05-00OR22800 between the U.S. Department of Energy and Babcock & Wilcox Technical Services Y-12, LLC. This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.