Citation: Lin Ping XU, Yong Xiang ZHAO, Zhi Gang WU, Dian Sheng LIU. A New Method for Preparing Ti-Si Mixed Oxides[J]. Chinese Chemical Letters, ;2003, 14(11): 1159-1162. shu

A New Method for Preparing Ti-Si Mixed Oxides

School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006

Received Date: 11 October 2002

Ti-Si mixed oxides with different TiO₂ content were prepared by sol-gel one step hydrolysis, using TiCl₄ as the precursor. The samples were characterized by BET, FT-IR and XRD. The results indicated that titanium is in fourfold coordination with oxygen in the SiO₄^4- in mixed oxides, form the bond of Ti-O-Si, and the low titania materials are mixed on an atomic scale. The phase of anatase appeared when TiO₂ content is up to 80%. The mixed oxides had high specific surface areas up to 681.5 m²/g. 10TiSi is a better support than SiO₂ in the reaction of CO oxidation.
- Ti-Si mixed oxide,
- sol-gel one step hydrolysis,
- TiCl₄
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