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REACTOR AND METHOD FOR PRODUCTION OF NANOSTRUCTURES

United States Patent Application

20120027955
A1
View the Complete Application at the US Patent & Trademark Office
A reactor and method for production of nanostructures produces, for example, metal oxide nanowires or nanoparticles. The reactor includes a metal powder delivery system wherein the metal powder delivery system includes a funnel in communication with a dielectric tube; a plasma-forming gas inlet, whereby a plasma-forming gas is delivered substantially longitudinally into the dielectric tube; a sheath gas inlet, whereby a sheath gas is delivered into the dielectric tube; and a microwave energy generator coupled to the dielectric tube, whereby microwave energy is delivered into a plasma-forming gas. The method for producing nanostructures includes delivering a plasma-forming gas substantially longitudinally into a dielectric tube; delivering a sheath gas into the tube; forming a plasma from the plasma-forming gas by applying microwave energy to the plasma-forming gas; delivering a metal powder into the dielectric tube; and reacting the metal powder within the plasma to form metal oxide nanostructures.
Sunkara, Mahendra Kumar (Louisville, KY), Kim, Jeong H. (Louisville, KY), Kumar, Vivekanand (Louisville, KY)
UNIVERSITY OF LOUISVILLE RESEARCH FOUNDATION, INC.
12/ 248,731
October 9, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] The invention was supported, in whole or in part, by a grant, No. W9113M-04-C-0024, from Nanowire Technology for Missile Defense of the U.S. Army Space Missile Defense Command; a grant, No. DE-FG36-05G085013A, from the U.S. Department of Energy/Kentucky Rural Energy Consortium; and a grant, No. DE-FG02-05ER64071, from the U.S. Department of Energy which supports the Institute for Advanced Materials and Renewable Energy at the University of Louisville. The Government has certain rights in the invention.