Preparation of Co_(0.5)Zn_(0.5)Fe_2O_4 and Co_(0.5)Mn_(0.5)Fe_2O_4 Nano ferrites by Coprecipitation Method

摘要

Nanoparticles of Cobalt-zinc ferrite (Co_(0.5)Zn_(0.5)Fe_2O_4) and Cobalt-manganese ferrite (Co_(0.5)Mn_(0.5)Fe_2O_4) have been synthesized at room temperature by co-precipitation method with and without calcination process. Starting materials for preparation of nano oxides were Co(NO_3)_2·6H_2O, ZnCl_2, Fe(NO_3)_3·9H_2O and Mn(NO_3)_2·4H_2O. These salats were mixed in stoichiometric amounts and precipitated with sodium hydroxide. Synthesised materials are confirmed by XRD and SEM analysis. The FTIR spectra of nano oxides have been analyzed in the frequency range of 400-4000 cm~(-1).