Patent ID: 7785392
Filing Date: 2010-08-31
Classification: B22F,B82Y,C01B,C01G,C01P,Y10S

Abstract:
1. A method for manufacturing nanoparticles of metal oxides, single metals or metal alloys, the method comprising: preparing a mixed solution including capping molecules, a metal catalyst, a reducing agent, and an organic solvent; adding a metal precursor to the mixed solution and raising to a predetermined temperature and stirring; and lowering the temperature of the mixed solution to precipitate the nanoparticles of metal oxides, single metals or metal alloys, wherein nanoparticles of metal oxides are produced by raising the temperature of the mixed solution to 80 to 150° C. after adding the metal precursor, wherein nanoparticles of single metals or metal alloys are produced by raising the temperature of the mixed solution to 155 to 180° C. after adding the metal precursor, and wherein the temperature of the mixed solution is lowered by adding the mixed solution to distilled water, ethylene glycol, an alcohol-based solvent, or a mixture thereof of 0° C. or lower.