%0 Conference Paper
%A Soleimani, H.
%A Yahya, N.
%A Latiff, N.R.A.
%A Sabet, M.
%A Guan, B.H.
%A Chuan, L.K.
%D 2014
%F scholars:4139
%I American Institute of Physics Inc.
%P 510-515
%R 10.1063/1.4898514
%T Co-precipitation synthesis of Co2+xFe2+1-xFe2O4nanoparticles: Structural characterization and magnetic properties
%U https://khub.utp.edu.my/scholars/4139/
%V 1621
%X Cobalt ferrite is known as a promising magnetic material for various applications. This metal-ceramic composite (Cox2+Fe1-x2+Fe2O4) was synthesized via co-precipitation route, by varying the Co/Fe ratios (Co/Fe = 0.3, 0.2, and 0). The structures and magnetic properties of nano-composites were analyzed by XRD and VSM. As deduced from the XRD line broadening, the average crystallite size of the samples was found to be in the range of 13.0-15.0 nm and contain fcc structure with smaller lattice constant as the Co/Fe ratios increases. FESEM and TEM images revealed the morphology of the samples, which consist of irregular shapes of diameter in the range of 9.0-15.0 nm. Magnetic properties measurement shows that sample S11 with the highest Co/Fe ratio has the highest value of saturation magnetization (Ms) of 65.23 emu/g. On the other hand, increase in the concentration of cobalt ions improves the remanence magnetization (Mr) and coercivity (Hc) of the same sample to 12.18 emu/g and 238.92 Oe, respectively. It is demonstrated that the higher substitution ratio of cobalt in Cox2+Fe1-x2+Fe2O4 has successfully improve the magnetic properties of the samples. © 2014 AIP Publishing LLC.
%Z cited By 0; Conference of 3rd International Conference on Fundamental and Applied Sciences: Innovative Research in Applied Sciences for a Sustainable Future, ICFAS 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:112230