Volume 4, No. 4, December 2016
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Structural & Magnetic Properties of Cobalt Oxide Nanoparticles at Different Annealing Temperatures

Prianka Sharma and Anshu Sharma
Maharaja Agrasen University, Solan, INDIA
Abstract: The effect of annealing temperature on the particle size and on the magnetic properties of cobalt oxide Co3O4 nanoparticle has been investigated. Single phase Co3O4 nanoparticles were synthesized by co-precipitation route and their structure was confirmed through X-ray diffraction analysis. The average crystallite sizes of the nanoparticles as determined from the X-ray diffraction were found to lie in the range of 22 to 29 nm. At room temperature, these particles show ferromagnetic response at 4500C and  with increasing annealing temperature, the particle size increases and the tendency of cobalt Co3O4 nanoparticles shifts towards slightly superparamagnetic behaviour. The coercivity decreases with increasing particle size, as the annealing temperature increases.
 
Key words: Cobalt Oxide nanoparticle, crystallite size, saturation magnetization, coercivity, ferromagnetism

Cite: Prianka Sharma and Anshu Sharma, "Structural & Magnetic Properties of Cobalt Oxide Nanoparticles at Different Annealing Temperatures," International Journal of Materials Science and Engineering, Vol. 4, No. 4, pp. 208-214, December 2016. doi: 10.17706/ijmse.2016.4.4.208-214

General Information

ISSN: 2315-4527
Editor-in-Chief: Prof. Emeritus Dato' Dr. Muhammad Yahaya
DOI: 10.17706/ijmse
Abstracting/ Indexing: Ulrich's Periodicals Directory, Google Scholar, Crossref, Engineering & Technology Digital Library and Electronic Journals Digital Library
E-mail: ijmse@iap.org