期刊
MATERIALS LETTERS
卷 76, 期 -, 页码 90-92出版社
ELSEVIER
DOI: 10.1016/j.matlet.2012.02.062
关键词
Nanoparticles; Magnetic materials; Fe3O4 nanoflowers; Fe(CO)(5)
资金
- National Natural Science Foundation of China [51106061, 21106051, 20975043]
- Natural Science Foundation of Jiangsu Education Committee [10KJB430003]
- Technological Research Foundation of Huai'an City [HAG2010073]
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials [JSKC11095]
Fe3O4 nanoflowers were prepared by a simple and novel solvothermal process. Iron pentacarbonyl (Fe(CO)(5)) and absolute ethanol were used as the iron source and solvent, respectively. X-ray diffraction and energy dispersive spectroscopy results showed that the as-prepared product was pure cube phase Fe3O4 without any impurity. Scanning electron microscopy and transmission electron microscopy studies revealed that the product consisted of several uniform flower-like nanostructures with an average size of ca. 100 nm. The nanollowers consisted of many irregular polyhedrons as building blocks. A comparative experiment indicated that pure cube phase Fe3O4 cannot be obtained by replacing the ethanol solvent with ethylene glycol. Magnetic analysis revealed that the Fe3O4 nanoflowers had a superparamagnetic property with a saturation magnetization of 82.6 emu g(-1) (C) 2012 Elsevier B.V. All rights reserved.
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