Abstract
In this study, the effect of vanadium addition on the structural and magnetic properties of cobalt ferrite (Co1−xVxFe2O4; where x = 0, 0.05, 0.10, 0.15, 0.20, and 0.25) prepared by a novel sol–gel autocombustion method was investigated. The formation of cubic spinel structure (space group Fd3m) was confirmed by X-ray diffraction in combination of Rietveld structure refinement analysis and transform infrared spectroscopic spectrum (FT-IR) analyses. Also, phase and elemental analyses confirmed that an inevitable secondary phase of hematite along with the spinel phase appears by addition of vanadium; therefore, a nanocomposite was formed in the sample containing vanadium. However, the SEM observations in combination of the results obtained by Rietveld structure refinement analysis showed that the presence of vanadium can affect the size of synthesized cobalt ferrite. VSM measurements showed that saturation magnetization and coercivity values are strongly dependent on the vanadium content and particle size, so that the maximum value of coercivity was obtained equal to ~916 Oe for Co0.85V0.15Fe2O4.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
