Preparation of Nanosize Nickel Ferrite Powders by Citrin Coordination-Azeotropic Distillation Process-Low Temperature Combustion Method and Its Charaterization

Nickel ferrite wet gelatin was prepared by citrin coordination method firstly, and then the precursor prepared via azeotropic distillation process was directly heated on a electric cooker and ignited at low temperature to prapare the nickel ferrite powders, which were characterized by X-ray diffraction, Transmission electronic microscopy (TEM) and laser scattering particle size analyzer. The results show that the nickel ferrite powders prepared by using azeotropic distillation process to dehydrate a mount of free water had single spinel structure, uniform and well-dispersed particles, and the particles diameter was 80-100 nm.