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International Journal of Chemical Engineering
Volume 2013 (2013), Article ID 934234, 6 pages
http://dx.doi.org/10.1155/2013/934234
Research Article

Sonochemical Synthesis of Cobalt Ferrite Nanoparticles

1Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India
2Center for Energy, Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India

Received 8 August 2013; Revised 28 September 2013; Accepted 4 October 2013

Academic Editor: Jose C. Merchuk

Copyright © 2013 Partha P. Goswami et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Cobalt ferrite being a hard magnetic material with high coercivity and moderate magnetization has found wide-spread applications. In this paper, we have reported the sonochemical synthesis of cobalt ferrite nanoparticles using metal acetate precursors. The ferrite synthesis occurs in three steps (hydrolysis of acetates, oxidation of hydroxides, and in situ microcalcination of metal oxides) that are facilitated by physical and chemical effects of cavitation bubbles. The physical and magnetic properties of the ferrite nano-particles thus synthesized have been found to be comparable with those reported in the literature using other synthesis techniques.