Synthesis of Iron Oxides Nanoparticles by Thermal Decomposition of Cryochemically Modified Iron(iii) Acetylacetonate

Abstract

Highly dispersed powders of superparamagnetic iron oxides of various morphologies are obtained by thermal decomposition of formate and ammonium citrate of iron(III), subjected to cryochemical treatment by the method of spray cryogenic drying. The composition and structure of the obtained particles and cryo-modifi ed precursor salts were characterized by the following physicochemical methods: X-ray diffraction analysis, thermoanalytical methods (TG, DSC), IR spectroscopy, scanning electron microscopy, and chromatographic method for determining the specific surface by thermal desorption of argon