The Effect of Surface Modification on the Magnetic Properties of CoFe(2)O(4) Nano-Particles Synthesized by the Hydrothermal Method

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	The Effect of Surface Modification on the Magnetic Properties of CoFe(2)O(4) Nano-Particles Synthesized by the Hydrothermal Method
	Y. Zhang ; C. L. Fei ; Y. Liu ; R. J. Wang ; G. L. Yan ; R. Xiong ; J. Shi
刊名	Journal of Nanoscience and Nanotechnology
	2010
卷号	10 期号:10 页码:6395-6399
关键词	Surface Modification CoFe(2)O(4) Nano-Particles Magnetic Properties Hydrothermal core-shell particles cobalt ferrite fe3o4 nanoparticles thin-films nanocomposite silica temperature nanocrystals powders spheres
ISSN号	1533-4880
中文摘要	Cobalt ferrite (CoFe(2)O(4)) nano-particles were synthesized by the hydrothermal method with the addition of a surfactant sodium bis(2-ethylhexyl) sulphosuccinate (AOT). Characterization measurements including X-ray diffraction, transmission electron microscopy and fourier transform infrared spectroscopy showed that all the final products were single-phase CoFe(2)O(4) nano-crystals with AOT molecules bonding to the surfaces, the average crystallite sizes were all near 25 nm, and the lattice constant increased with the increasing mass of AOT. The magnetic hysteresis loops measured at room temperature indicated that the bonding of the AOT to the surfaces led to an increase of the saturation magnetization (Ms), the coercivity (Hc) and the remanence ratio (Mr/Ms). Furthermore, as the concentration of AOT reached the critical micelle concentration (CMC), turning points were observed in the the curves of Hc, Mr/Ms and K(eff) (effective magnetic anisotropy constants) versus. the mass of AOT due to the formation of the AOT micelles.
原文出处	://WOS:000280361400016
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/31729]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Zhang,C. L. Fei,Y. Liu,et al. The Effect of Surface Modification on the Magnetic Properties of CoFe(2)O(4) Nano-Particles Synthesized by the Hydrothermal Method[J]. Journal of Nanoscience and Nanotechnology,2010,10(10):6395-6399.
APA	Y. Zhang.,C. L. Fei.,Y. Liu.,R. J. Wang.,G. L. Yan.,...&J. Shi.(2010).The Effect of Surface Modification on the Magnetic Properties of CoFe(2)O(4) Nano-Particles Synthesized by the Hydrothermal Method.Journal of Nanoscience and Nanotechnology,10(10),6395-6399.
MLA	Y. Zhang,et al."The Effect of Surface Modification on the Magnetic Properties of CoFe(2)O(4) Nano-Particles Synthesized by the Hydrothermal Method".Journal of Nanoscience and Nanotechnology 10.10(2010):6395-6399.