Synthesis and Characterization of Some Transition Metals Ferrites

Abstract

Ferrite of different divalent transition metals were synthesized at normal condition using established co-precipitation methods by using simple salt precipitating from hot solution in temperature 9 0 C as oxalate precipitate and followed by subsequent calcinations at about 70 0 C to covert oxalate precipitate to oxide precipitate. The synthesized ferrite include Nickel ferrite (Ni-Fer),Cobalt ferrite (Co-Fer), Manganese ferrite (Mn-Fer),Copper ferrite (Cu-Fer),and Iron ferrite (Fe-Fer).This ferrite material were characterized by various spectroscopic technique such as Fourier transfer infrared spectroscopy FT-IR, powder X-ray diffraction (XRD) and X-ray florescence (XRF). The FT-IR spectroscopic revealed the presence of Fe-O & M-O band of respected divalent cations in cubic spinel structure and absence or low level of impurities of residual precursors. The XRD illustrated that the structure of ferrite material are of cubic single spinel phase. The XRF analysis indicated the presence of the incorporated metallic species but their percentages were found not consistent with the empirical formula of normal spinel ferrite M II Fe 2 O 4 .The deviation from normal spinels was assumed to be related to the XRF spectrometer or the use of low purity grade chemicals precursors.