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  4. Fabrication and magnetic properties of NiFe2O4 nanorods

稀有金属（英文版）, 2010, 29(4): 385-389. doi: 10.1007/s12598-010-0135-y

1, , 2, , 3,

1.National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China;School of Mechanical and Electronic Engineering, North University of China, Taiyuan 030051, China

2.The Quartermaster Institute of the General Logistics Department of the PLA, Beijing 100010, China

3.National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China

基金项目:   the North University of China and the National Natural Science Foundation of China(50535030)  

Fabrication and magnetic properties of NiFe2O4 nanorods

WU Yue 1, , SHI Changhong 2, , YANG Wei 3,

1.National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China;School of Mechanical and Electronic Engineering, North University of China, Taiyuan 030051, China

2.The Quartermaster Institute of the General Logistics Department of the PLA, Beijing 100010, China

3.National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China

Keywords： inorganic compounds

NiFe2O4 nanorods have been successfully synthesized via thermal treatment of the rod-like precursor fabricated by Ni-doped α-FeOOH,which was enwrapped by the complex of citric acid and Ni2+. The morphology evolution during the calcination of the precursor nanorods was investigated with transmission electron microscopy (TEM), and the phase and the magnetic properties of samples were analyzed through X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results indicated that the diameter of the NiFe2O4 nanorods obtained ranged between 30 and 50 nm, and the length ranged between 2 and 3 μm. As the calcination temperature was up to 600℃, the coertively. The NiFe2O4 nanorods prepared have higher shape anisotropy and superior magnetic properties than those with irregular shapes.

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