期刊
CERAMICS INTERNATIONAL
卷 43, 期 7, 页码 5599-5606出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.01.092
关键词
Spinel ferrites; Cobalt ferrite; Co-precipitation; Reaction temperature; Ferromagnetism
资金
- FONDECYT [3160170, 1140195]
- CONICYT BASAL CEDENNA [FB0807]
Nano cobalt ferrites (CoFe2O4) were co-precipitated at various reaction temperatures (60, 70 and 80 degrees C) for 1 h. The reaction temperature greatly influenced the crystallite size and the magnetic behaviours of the nano CoFe2O4. The mean crystallite size ranged from 9 to 15 nm with the increase in the reaction temperature and the intensity of metal oxide vibrations at 568-550 cm(-1) were also inclined. The synthesized samples were in the stoichiometric ratio of 1:2 (Co:Fe) with roughly spherical morphology. The synthesized cobalt nanoferrites exhibited ferromagnetism at room temperature and 5 K, and the saturation magnetization increased from 6.4 to 20 emu/g with the crystallite size.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据