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Mesoporous metal oxide microsphere electrode compositions and their methods of making

United States Patent

9,515,318
December 6, 2016
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Compositions and methods of making are provided for mesoporous metal oxide microspheres electrodes. The mesoporous metal oxide microsphere compositions comprise (a) microspheres with an average diameter between 200 nanometers (nm) and 10 micrometers (.mu.m); (b) mesopores on the surface and interior of the microspheres, wherein the mesopores have an average diameter between 1 nm and 50 nm and the microspheres have a surface area between 50 m.sup.2/g and 500 m.sup.2/g. The methods of making comprise forming composite powders. The methods may also comprise refluxing the composite powders in a basic solution to form an etched powder, washing the etched powder with an acid to form a hydrated metal oxide, and heat-treating the hydrated metal oxide to form mesoporous metal oxide microspheres.
Paranthaman; Mariappan Parans (Knoxville, TN), Liu; Hansan (Wilmington, DE), Brown; Gilbert M. (Knoxville, TN), Sun; Xiao-Guang (Knoxville, TN), Bi; Zhonghe (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 764,060
20130209897
February 11, 2013
STATEMENT OF GOVERNMENT INTEREST The invention was made with government support under contract number DE-AC05-00OR22725 by the Department of Energy. The Government has certain rights in the invention.