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Synthesis and Characterization of CoFe2O4/Polyaniline Nanocomposites for Electromagnetic Interference Applications

Praveena, K and Srinath, S (2014) Synthesis and Characterization of CoFe2O4/Polyaniline Nanocomposites for Electromagnetic Interference Applications. In: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 14 (6). pp. 4371-4376.

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Official URL: http://dx.doi.org/10.1166/jnn.2014.8286

Abstract

The Cobalt ferrite (CoFe2O4) powders were synthesized by Co-precipitation method. The as prepared ferrite powders were incorporated into a polyaniline matrix at various volumetric ratios. The as prepared composites of ferrite and polyaniline powders were characterized using X-ray diffraction (XRD), transmission electron microscope (TEM). The particle size of CoFe2O4 is found to be 20 nm. The saturation magnetization (M-s) of all the composites was found to be decreasing with decrease of ferrite content, while coercivity (H-c) remained at the value corresponding to pure cobalt ferrite nanopowders. The complex permittivity (epsilon' and epsilon `') and permeability (mu' and mu `') of composite samples were measured in the range of 1 MHz to 1.1 GHz. The value of epsilon' and mu' found to be increased with ferrite volume concentration.

Item Type: Journal Article
Additional Information: copyright for this article belongs to AMER SCIENTIFIC PUBLISHERS, USA
Keywords: Nanocomposite; Cobalt Ferrite; Polyaniline; Magnetic Properties
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 23 Apr 2014 08:33
Last Modified: 23 Apr 2014 08:33
URI: http://eprints.iisc.ac.in/id/eprint/48900

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