G García-Pacheco et al 2006 Nanotechnology 17 2528 doi:10.1088/0957-4484/17/10/015
G García-Pacheco1,2, J G Cabañas-Moreno1, H Yee-Madeira1 and F Cruz-Gandarilla1
Show affiliationsCo3O4 nanoparticles have been produced by mechanochemical reactions involving cobalt carbonate, sodium oxide and sodium carbonate. The mechanochemical reactions are carried out during milling at room temperature and the nanoparticles have been obtained without the need for any thermal treatment after the milling operation. The CoO phase is produced in the first 30 min of the mechanochemical process, followed by a second stage of oxidation to Co3O4 which lasts for several hours. Under proper milling conditions the final products were soft agglomerates of ultrafine particles with average sizes between 15 and 20 nm.
81.16.Be Chemical synthesis methods
81.40.Gh Other heat and thermomechanical treatments
81.07.-b Nanoscale materials and structures: fabrication and characterization
Issue 10 (28 May 2006)
Received 23 January 2006, in final form 3 March 2006
Published 24 April 2006
G García-Pacheco et al 2006 Nanotechnology 17 2528
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