文献类型： 外文期刊
作者： Wang, Fengping 1 ; Xue, Xinghua 1 ; Wang, Guizhen 2 ; Cai, Jingyao 2 ; Fu, Xin 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, Danzhou 571737, Peoples R China
2.Hainan Univ, Coll Mat & Chem Engn, Haikou 570228, Peoples R China
关键词： FeCo nanoparticles;preparation;structure;magnetic property
期刊名称：INTEGRATED FERROELECTRICS （ 影响因子：0.836； 五年影响因子：0.787 ）
ISSN： 1058-4587
年卷期： 2011 年 128 卷
页码：
收录情况： SCI
摘要： FeCo alloy nanoparticles were synthesized by a new reduction process in liquid phase with sodium borohydride and L-ascorbic acid as reductant, and cetyltrimethylammonium bromide as surfactant. The structure and magnetic properties of the samples were investigated by laser particle size analyzer, X-ray powder diffraction, transmission electron microscopy, selected-area electron diffraction and vibrating sample magnetometer. The nanoparticles obtained are nearly spherical and have a body-centred cubic structure. The average size of the particles is 75 nm. The saturation magnetization and coercivity are 56.6 emu/g and 20 Oe, respectively. The FeCo nanoparticles do not indicate an ideal superparamagnetic behaviour with no hysteresis at room temperature.
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