Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (11): 1421.

• Articles •     Next Articles

The Preparation of Co3O4Ultrafine Particles

Wang Xiao-hui, Wang Zi-chen, Li Xi, Xu Bao-kun, Zhao Mu-yu   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1990-10-10 Online:1991-11-24 Published:1991-11-24

Abstract: Co3O4ultrafine particles (UFP) were prepared from CoCl2by colloidal chemical method. The most favorable experiment conditions for the preparation of Co3O4UFP were studied. XRD, DTA, TG, IR and TEM examinations were used to discribe the characteristic of the sample. The spherical amorphous ultrafine Co3O4product has average diameters of 4. 0 nm, with good dispersity and transparency in many organic solvents. When heat-treated at 800 Kfor 3 hours, cubic crystal Co3O4UFPcan be obtained, the average crystal grain size is 6. 0 nm.

Key words: Is Ultrafine particle, Co3O4, Colloidal chemical method

TrendMD: