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Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones

United States Patent

April 27, 2010
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
Synthesis of Metal-Metal Oxide Catalysts and Electrocatalysts
The invention relates to platinum-metal oxide composite particles and their use as electrocatalysts in oxygen-reducing cathodes and fuel cells. The invention particularly relates to methods for preventing the oxidation of the platinum electrocatalyst in the cathodes of fuel cells by use of these platinum-metal oxide composite particles. The invention additionally relates to methods for producing electrical energy by supplying such a fuel cell with an oxidant, such as oxygen, and a fuel source, such as hydrogen. The invention also relates to methods of making the metal-metal oxide composites.
Adzic; Radoslav (East Setauket, NY), Vukmirovic; Miomir (Port Jefferson Station, NY), Sasaki; Kotaro (Ronkonkoma, NY)
Brookhaven Science Associates, LLC (Upton, NY)
11/ 760,051
June 8, 2007
STATEMENT OF GOVERNMENT LICENSE RIGHTS The present invention was made with government support under Grant No. DE-AC02-98CH10886 awarded by the U.S. Department of Energy. The United States government has certain rights in the invention.