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Porous metal oxide particles and their methods of synthesis

United States Patent

March 12, 2013
View the Complete Patent at the US Patent & Trademark Office
Methods are generally disclosed for synthesis of porous particles from a solution formed from a leaving agent, a surfactant, and a soluble metal salt in a solvent. The surfactant congregates to form a nanoparticle core such that the metal salt forms about the nanoparticle core to form a plurality of nanoparticles. The solution is heated such that the leaving agent forms gas bubbles in the solution, and the plurality of nanoparticles congregate about the gas bubbles to form a porous particle. The porous particles are also generally disclosed and can include a particle shell formed about a core to define an average diameter from about 0.5 .mu.m to about 50 .mu.m. The particle shell can be formed from a plurality of nanoparticles having an average diameter of from about 1 nm to about 50 nm and defined by a metal salt formed about a surfactant core.
Chen; Fanglin (Irmo, SC), Liu; Qiang (Columbia, SC)
University of South Carolina (Columbia, SC)
12/ 634,092
December 9, 2009
GOVERNMENT SUPPORT CLAUSE This invention was made with government support under DE-FG36-08GO88116 awarded by the US Dept. of Energy. Therefore, the government has certain rights in the invention.