Chinese Journal of Applied Chemistry ›› 1989, Vol. 0 ›› Issue (4): 87-90.

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PREPARATION OF TiO2-Al2O3 BY IMPREGNATION WITH TiCl4-CCl4

Liu Yingjun, Zhang Qinpei, Zhu Yongfa, Gui Linlin, Tang Youqi   

  1. Institute of Physical Chemistry, Peking University, Beijing
  • Received:1988-08-22 Revised:1988-12-29 Published:1989-08-10 Online:1989-08-10

Abstract: Catalyst carrier TiO2-Al2O3 was prepared through impregnating γ-Al2O3 with TiCl4-CCl4 (or TiCl4-CH3COCH3) solution, followed by calcination at 550℃ for 24 hrs.The seriessamples of TiO2-Al2O3 with different TiO2 loading have been characterized by XRD,XPS, TEM and HEED techniques. The maximum dispersion capacities for TiO2 on γ-Al2O3 were found by XRD and XPS to be 0.12g TiO2/g γ-Al2O3 and 0.11g TiO2/gγ-Al2O3respectively.It was also verified by, TEM and HEED techniques. The values indicate thatTiO2 is dispersed on the surface of γ-Al2O3 as a submonolayer and the monolayer coveragefor TiO2 on γ-Al2O3 was 60% as compared by a close packed monolayer model.

Key words: Alumina, Titania, Hydrogenation catalyst