期刊
MATERIALS LETTERS
卷 65, 期 12, 页码 1973-1975出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.03.101
关键词
Nanocrystalline materials; Crystal structure; Self-assembly; Magnetic field
资金
- Natural Science Foundation of Tianjin, P.R. China [033603611]
- Programme of Introducing Talents of Discipline to Universities, P.R. China [B06006]
Anisotropic magnetite (Fe3O4) nanorods were prepared via a facile way in room temperature by the method of reverse co-precipitation with external magnetic field-assisted. These Fe3O4 nanorod products had an average diameter of 10 nm and a length range of 100-150 nm and had the characteristics of super-paramagnetism. Meanwhile, the nanorod structures owned a greater saturation magnetization than the square magnetite nanoparticles obtained without the magnetic field. In order to study the role of the magnetic field in the reaction, the constituent, phase, and morphology of these nanostructures were characterized by different means. The analysis results symptomatized that the intensity of magnetic field directly impacted the length and the productive rate of nanorods but had no obvious effect to the diameter size. (C) 2011 Elsevier B.V. All rights reserved.
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