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Carbon monoxide tolerant electrocatalyst with low platinum loading and a process for its preparation

United States Patent

December 30, 2003
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
Carbon Monoxide Tolerant Electrocatalyst with Low Platinum Loading and a Process for its Preparation
An electrocatalyst is provided for use in a fuel cell that has low platinum loading and a high tolerance to carbon monoxide poisoning. The fuel cell anode includes an electrocatalyst that has a conductive support material, ruthenium nanoparticles reduced in H.sub.2 and a Group VIII noble metal in an amount of between about 0.1 and 25 wt % of the ruthenium nanoparticles, preferably between about 0.5 and 15 wt %. The preferred Group VIII noble metal is platinum. In one embodiment, the anode can also have a perfluorinated polymer membrane on its surface.
Adzic; Radoslav (East Setauket, NY), Brankovic; Stanko (Coram, NY), Wang; Jia (East Setauket, NY)
Brookhaven Science Associates LLC (Upton, NY)
09/ 812,246
March 19, 2001
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.