Kumar, Sanjeev and Singh, Vaishali and Aggarwal, Saroj and Mandal, Uttam Kumar and Kotnala, Ravinder Kumar (2009) Bimodal Co0.5Zn0.5Fe2O4/PANI nanocomposites: Synthesis, formation mechanism and magnetic properties. Composites Science and Technology, 70 (2). pp. 249-254. ISSN 0266-3538

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Abstract

Co0.5Zn0.5Fe2O4/PANI nanocomposites with bimodal size distribution were synthesized via reverse microemulsion method. Structural characterization was done by Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. Vibrating sample magnetometer measurement confirmed the ferromagnetic behavior of nanocomposite with saturation magnetization of 3.95 emu/g and low coercive force (39 Oe). It was observed that on nanocomposite formation with PANI nanofibers, Co0.5Zn0.5Fe2O4 ferrite nanocrystals undergo transition from being superparamagnetic to ferromagnetic. A mechanistic description of the process has also been presented in view that the process could be extended for the fabrication of other bimodal nanocomposites.

Item Type:	Article
Subjects:	Chemistry Materials Science Nanoscience/ Nanotechnology Polymer Science
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	22 Feb 2012 12:40
Last Modified:	22 Feb 2012 12:40
URI:	http://npl.csircentral.net/id/eprint/29

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