(1. Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education,Taiyuan University of Technology, Taiyuan 030024, China)（2. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China） （3. China National Offshore Oil Taiyuan Precious Metals Co.,Ltd., Taiyuan 030006, China）(4. Research Centre of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China)
The CeO2 carriers were prepared by thermal decomposition, sol-gel, precipitation and hydrothermal methods. The results of XRD and SEM analysis, N2 adsorptiondesorption isotherms and H2temperatureprogrammed reduction (H2-TPR) patterns showed that the CeO2 particles obtained by sol-gel method possess good specific surface area, pore volume, pore diameter, and redox performance. Therefore, The mixed oxide catalyst carrier Ce0.5Ti0.5O2 was prepared by sol-gel method. The phase analysis, adsorption and redox properties of samples were investigated. The positions of hydrogen consumption peak of Ce0.5Ti0.5O2 H2-TPR pattern were 261, 529 and 749 ℃, attributed to adsorbed oxygen redox on the surface, lattice oxygen redox on the surface and the body phase lattice oxygen redox, respectively. The result of TEM showed that Ti4+ entered into the CeO2 lattice and formed interstitial solid solution, it not only reduced the reduction temperature of CeO2 and TiO2, but also enhanced the redox property.