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Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates

United States Patent

November 22, 2011
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
Electrocatalyst for Oxygen Reduction with Reduced Platinum Oxidation and Dissolution Rates
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.
Adzic; Radoslav (East Setauket, NY), Zhang; Junliang (Stony Brook, NY), Vukmirovic; Miomir (Port Jefferson Station, NY)
Brookhaven Science Associates, LLC (Upton, NY)
11/ 132,378
May 19, 2005
This invention was made with Government support under contract number DE-AC02-98CH10886, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.