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US 7,547,400 B1Granted
Nanoparticle nickel zinc ferrites synthesized using reverse micelles
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsEverett E. Carpenter, Vincent G. Harris, Shannon A. Morrison
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Abstract
A method for making monodispersed magnetic nanoparticles of nickel zinc ferrite (NZFO) at room temperature by mixing together two micelle solutions. The first micelle solution comprises zinc, nickel, and iron metal salts; a surfactant; and a hydrocarbon. The second micelle solution comprises an aqueous hydroxide, a surfactant, and a hydrocarbon. After mixing the two micelle solutions, the ferrite precipitates.
Claims4
A method for synthesizing monodispersed nanoparticle nickel zinc ferrites using reverse micelles, comprising:
- (a) preparing a first micelle solution from an aqueous solution of Zn, Ni, and Fe metal salts, a surfactant, and a hydrocarbon;
- (b) preparing a second micelle solution from an aqueous hydroxide, a surfactant, and a hydrocarbon;
- and
- (c) mixing said first and said second micelle solutions whereby a monodispersed nanoparticle ferrite precipitates, said monodispersed nanoparticle ferrite having a particle size distribution where the standard deviation is no greater than 12% of the mean value.
1 more element
Dependencies are inferred from the claim text.