Structural and Magnetic Properties of Cobalt Ferrite Nanopowders Synthesis Using Contact Non-Equilibrium Plasma
L. Frolova, A. Derimova and T. Butyrina
Ukrainian State Chemical Technology University, 49005, Gagarin, 8, Dnipro, Ukraine
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Different grades of magnetic cobalt ferrite (CoxFe3-xO4) nanoparticles were synthesized with various molar ratios of Fe2+ to Co2+ ions in the initial salt solutions method with using contact non-equilibrium plasma. The crystal structure and morphology of the nanoparticles are obtained from X-ray diffraction and transmission electron microscopy studies. With an increase in the value of x, the saturation magnetization for the samples of CoFe2O4 has decreased from 150.9 emu/g to 1.2 emu/g. The dependence of the coercive force on x is extremal with a plateau maximum corresponding to the x=0.5-1.25.

DOI: 10.12693/APhysPolA.133.1003
topics: nanomaterials, cobalt, ferrite, Fe/Co molar ratio