Open AccessSynthesis of nano Co1-xNixFe2O4 by sol-gel method and its properties
Author(s) -
Minh Truong Xuan Nguyen,
Oanh Le Kieu Pham,
Huỳnh Kỳ Phương Hạ,
MinhVien Le
Publication year - 2016
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v19i3.585
Subject(s) - coercivity , calcination , spinel , materials science , cobalt , magnetization , magnetometer , nickel , ferrite (magnet) , saturation (graph theory) , nano , chemical engineering , analytical chemistry (journal) , metallurgy , catalysis , composite material , chemistry , condensed matter physics , magnetic field , chromatography , biochemistry , physics , mathematics , quantum mechanics , combinatorics , engineering
Nano ferrites have received considerable attentions due to their various applications such as magnetic or catalyst materials. In this work, nickel-cobalt ferrite (Co1-xNixFe2O4) was synthesized by sol-gel method using stearic acid. The effects of calcination temperature and nickel/cobalt ratios on the formation of structure were also investigated. XRD results show that all samples which were calcined from 6000C to higher temperature for 1 hour were in single cubic spinel phases. The magnetic properties include saturation magnetization (Ms) and coercivity (Hc) have been also investigated by using vibrating sample magnetometer (VSM). The saturation magnetization and coercivity of CoFe2O4 calcined at 6000C for 1hour is 74.4 emu/g and 1519.13 Oe, respectively. The saturation magnetization and coercivety of substituted materials decrease with increasing Ni content.