Magnetic properties of nickel ferrite nanoparticles prepared using flotation extraction

被引：0
|
作者：
Yu. A. Mirgorod
N. A. Borshch
V. M. Fedosyuk
G. Yu. Yurkov
机构：
[1] Southwest State University,Scientific
[2] Belarussian Academy of Sciences,Practical Materials Research Centre
[3] Russian Academy of Sciences,Baikov Institute of Metallurgy and Materials Science
来源：
Inorganic Materials | 2013年 / 49卷
关键词：
Ferrite; Sodium Dodecyl Sulfate; Critical Micelle Concentration; Reverse Micelle; Nickel Hydroxide;
D O I：
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中图分类号：
学科分类号：
摘要：
A method has been proposed for the preparation of nickel ferrite nanoparticles in a system of direct sodium dodecyl sulfate micelles using ion flotation. Amorphous nickel ferrite nanoparticles with the overall composition xNiFe2O4 · yFe2O3 · zH2O, containing dodecyl sulfate anion impurities, have been prepared. According to transmission electron microscopy results, the size distribution of the synthesized nanoparticles has a maximum in the range 4 to 6 nm, and the ferrite is X-ray amorphous. The blocking temperature of the synthesized nanoparticles is 25 K. The ferrite possesses superparamagnetic properties, with a specific saturation magnetization of 15 A m2/kg at 5 K.
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页码：109 / 114
页数：5
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