1. Synthesis and Magnetic Properties of Nearly Monodisperse CoFe2O4Nanoparticles Through a Simple Hydrothermal Condition
- Author
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Li Xing-Hua, Xu Cai-Ling, Han Xiang-Hua, Qiao Liang, Wang Tao, and Li Fa-Shen
- Subjects
Monodisperse ,Cobalt ferrite ,Superparamagnetic ,Nanoparticles ,Magnetic ,Biomedcine ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Abstract Nearly monodisperse cobalt ferrite (CoFe2O4) nanoparticles without any size-selection process have been prepared through an alluring method in an oleylamine/ethanol/water system. Well-defined nanospheres with an average size of 5.5 nm have been synthesized using metal chloride as the law materials and oleic amine as the capping agent, through a general liquid–solid-solution (LSS) process. Magnetic measurement indicates that the particles exhibit a very high coercivity at 10 K and perform superparamagnetism at room temperature which is further illuminated by ZFC/FC curves. These superparamagnetic cobalt ferrite nanomaterials are considered to have potential application in the fields of biomedicine. The synthesis method is possible to be a general approach for the preparation of other pure binary and ternary compounds.
- Published
- 2010
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