International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2568

Full Length Research Paper

Mechanochemical route to synthesize Co3O4/CuO composite nanopowders

Aidong Tang 1, HuamingYang 2,*, Xiangchao Zhang 2
1School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;  2 School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China
Email: [email protected]

  •  Accepted: 17 October 2006
  •  Published: 31 October 2006

Abstract

Co3O4/CuO composite nanopowders have been successfully synthesized by heating the precursor obtained via a mechanochemical reaction. The precursor and the nanopowders were characterized using thermogravimetric (TG), X-ray diffraction (XRD) and transmission electron spectroscopy (TEM). Subsequent thermal treatment of the precursor at 550-700 °C in air for 2 h resulted in the formation of Co3O4/CuO nanopowders with an average crystal size of about 25-50 nm, varying with the calcination temperature. The mechanism of nanocrystallite growth is primarily investigated. The morphology of the synthesized Co3O4/CuO nanopowders is in irregular polyhedron shape and the mechanism of NaCl used as diluent have been analyzed. The mechanochemical route is a novel, cheap and convenient technique suitable for large-scale synthesis of composite nanomaterials.

 

Keywords: Composite nanopowders; Co3O4/CuO; Mechanochemical reaction; Nanocrystallite growth.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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