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WATER OXIDATION CATALYSTS AND METHODS OF USE THEREOF

United States Patent Application

20170106359
A1
View the Complete Application at the US Patent & Trademark Office
Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts.
Hill, Craig L. (Atlanta, GA), Gueletii, Yurii V. (Decatur, GA), Musaev, Djamaladdin G. (Atlanta, GA), Yin, Qiushi (Tucker, GA), Botar, Bogdan (Juelich, DE)
14/ 338,384
July 23, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with Government Support under Grant No. DE-FG02-03ER-15461 awarded by the Department of Energy. The Government has certain rights in the invention.