Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (08): 714-717.doi: 10.3866/PKU.WHXB20030808

• ARTICLE • Previous Articles     Next Articles

Studies on the Dispersion Structure of Co-precipitated CuO-ZrO2 Mixed Oxides

Yang Peng-Cheng;Cai Xiao-Hai;Xie You-Chang   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871
  • Received:2003-01-20 Revised:2003-03-24 Published:2003-08-15
  • Contact: Cai Xiao-Hai E-mail:caixh@chem.pku.edu.cn

Abstract: Co-precipitated CuO-ZrO2 mixed oxides were characterized by XRD,EXAFS, XPS methods. For the samples calcined at 500 ℃, amorphous solid solution forms between CuO and ZrO2 in the co-precipitated samples. The extra CuO crystal exists if CuO is more than its solubility in ZrO2, and extra tetragonal ZrO2 crystal exists if ZrO2 content is more than its solubility in CuO. After calcined at 800 ℃, the samples compose of monoclinic ZrO2 and CuO crystals.

Key words: CuO, ZrO2, XRD, EXAFS, Solid solution