Preparation of nanophase solid state materials
AssigneeWorcester Polytechnic Institute
InventorWilliam R. Moser
Life of this patent
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Abstract
A process for the preparation of nanophase solid state materials having crystallite morphology and particle sizes in the range of from about 1 nm to 30 nm is disclosed. Novel nanophase solid state materials are also disclosed.
Claims19
A process for producing nanophase solid state materials comprising (1) mixing together a metal containing solution and a second solution containing a precipitating agent to form a mixed solution, (2) pressurizing the mixed solution to a pressure of about 1,000 to 50,000 psig, (3) passing the pressurized mixed solution into a fluidizing apparatus wherein high shear forces act on the mixed solution, creating nanophase solid state materials having nanosize particles having average sizes of from about 1 to 30 nm, (4) depressurizing the mixed solution so as to cause cavitation and (5) separating the nanophase solid material from the cavitated mixed solution.
A process for producing a calcined nanophase solid state material comprising (1) mixing together a metal containing solution and a second solution containing a precipitating agent to form a mixed solution, (2) pressurizing the mixed solution to a pressure of about 20,000 to 50,000 psig, (3) passing the pressurized mixed solution into a fluidizing apparatus wherein high shear forces act on the mixed solution, creating nanophase solid state materials having nanosize particles having average sizes of from about 1 to 30 nm, (4) depressurizing the mixed solution so as to cause cavitation and calcination, and (5) separating the calcined nanophase solid material from the cavitated mixed solution.
Dependencies are inferred from the claim text.