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Citation: Luo Sheng-Cheng, Gui Lin-Lin, Tang You-Qi. The Comparative Study on TiO₂-Al₂O₃ Composites[J]. Acta Physico-Chimica Sinica, ;1996, 12(01): 7-11. doi: 10.3866/PKU.WHXB19960103 shu

The Comparative Study on TiO₂-Al₂O₃ Composites

1.
Institute of Physical Chemistry,Peking University,Beijing 100871

Received Date: 5 March 1995
Available Online: 15 January 1996

TiO2-Al2O3 composites (TiO2 content is 0.08gTiO2/gAl2O3) were prepared by two methods: mixing gel and coprecipitation, and characterized by XRD, XPS, and LRS. The results show that γ-Al2O3 is the only species of crystal to be identified by XRD for both samples treated at 550℃ for 5 hours, but the forms of TiO2 are different. TiO2 is dispersed on the surface for the sample by mixing gel. As to the composite by coprecipitation, TiO2 is dispersed so well in the bulk that it is difficult to be detected by XRD or LRS.
- TiO₂-Al₂O₃,
- Composite,
- Mixing gel,
- coprecipitation
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The Comparative Study on TiO₂-Al₂O₃ Composites