Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2005-05-19
2011-11-22
Nguyen, Khanh T (Department: 1766)
Compositions
Electrically conductive or emissive compositions
C428S312800, C428S655000, C429S500000, C429S524000, C438S478000, C438S762000, C502S185000, C502S327000, C502S344000
Reexamination Certificate
active
08062552
ABSTRACT:
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.
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Adzic Radoslav
Vukmirovic Miomir
Zhang Junliang
Brookhaven Science Associates LLC
Nguyen Khanh T
Price Dorene M.
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