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| Synthesis and Size Control of the Nano-Fe3O4 Particles Synthesized by a Reverse Coprecipitation Method |
| CHENG Sanxu1, LI Kezhi1, QI Lehua2, TONG Yonghuang1, LI Hejun1 |
1. The State Key Laboratory of Solidification Processing in Northwestern Polytechnical University, Xi’an 710072
2.College of Mechanical and Electrical Engineering, Northwestern Polytechnical University, Xi’an 710072 |
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Cite this article:
CHENG Sanxu LI Kezhi QI Lehua TONG Yonghuang LI Hejun. Synthesis and Size Control of the Nano-Fe3O4 Particles Synthesized by a Reverse Coprecipitation Method. Chin J Mater Res, 2011, 25(5): 489-494.
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Abstract The morphology, structure and magnetic property of the nano–Fe3O4 particles synthesized by a reverse coprecipitation method were characterized by using transmission electron microscope (TEM), X–ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results show that nearly spherical Fe3O4 nanoparticles with a spinel structure were obtained which exhibited superparamagnetic behavior at room temperature. The nanoparticles was smaller and more uniform compared with those by the normal coprecipitation method.The size of the nanoparticles increased with the synthesized temperature increasing, and decreased with pH value increasing.
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Received: 20 June 2011
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| Fund: Supported by National Natural Science Foundation of China Nos.50832004 and 50972121, and the Programme of Introducing Talents of Discipline to Universities No.B08040. |
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