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Mesoporous metal oxide microsphere electrode compositions and their methods of making

United States Patent

December 16, 2014
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 treated mesoporous metal oxide microspheres electrodes. The 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, and wherein the composition has an electrical conductivity of at least 1.times.10.sup.-7 S/cm at C. and 60 MPa. The methods of making comprise forming a mesoporous metal oxide microsphere composition and treating the mesoporous metal oxide microspheres by at least one method selected from the group consisting of: (i) annealing in a reducing atmosphere, (ii) doping with an aliovalent element, and (iii) coating with a coating composition.
Parans Paranthaman; Mariappan (Knoxville, TN), Bi; Zhonghe (Cookeville, TN), Bridges; Craig A. (Oak Ridge, TN), Brown; Gilbert M. (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 645,948
October 5, 2012
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.