Structure, Morphology, Cation Distribution and Magnetic Properties of Cr3+-Substituted CoFe2O4 Nanoparticles
作者： Vishnu S. Shinde , Vitthal Vinayak , S. P. Jadhav , N. D. Shinde , Ashok V. Humbe
DOI: 10.1007/S10948-018-4778-5
关键词:
摘要: The present investigations deal with the effect of trivalent chromium ions (Cr3+) on structural and magnetic properties nanocrystalline cobalt ferrite (CoFe2O4) nanoparticles. samples CoCrxFe2−xO4 (where x = 0.0 to 1.0 in step 0.2) were successfully synthesized by citric acid-assisted sol-gel auto combustion method. Further, prepared characterized x-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR) pulsed field hysteresis loop technique for structural, morphological analysis, respectively. XRD patterns showed formation single-phase cubic spinel structure broad Bragg’s peak all samples. value lattice parameter was found be decreased substitution x. Cation distribution studies revealed that Co2+ Fe3+ occupied both A B sites, whereas Cr3+ only site. SEM analysis confirmed nature material. two absorption bands belonging observed IR spectra. Saturation magnetization (MS), remanence (Mr) coercivity (HC) increase
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