| A New Method for Preparing Ti-Si Mixed Oxides |
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| 引用本文： | LinPingXU YongXiangZHAO ZhiGangWU DianShengLIU. A New Method for Preparing Ti-Si Mixed Oxides[J]. 中国化学快报, 2003, 14(11): 1159-1162 |
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| 作者姓名： | LinPingXU YongXiangZHAO ZhiGangWU DianShengLIU |
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| 作者单位： | SchoolofChemistryandChemicalEngineering,ShanxiUniversity,Taiyuan030006 |
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| 摘 要： | 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 m^2/g. 10TiSi is a better support than SiO2 in the reaction of CO oxidation.
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| 关 键 词： | 制备方法 钛硅复合氧化物 催化剂 溶胶凝胶法 一步水解 TiCl4 |
A New Method for Preparing Ti-Si Mixed Oxides |
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| 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 |
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| Authors: | Lin Ping XU Yong Xiang ZHAO Zhi Gang WU Dian Sheng LIU |
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| Abstract: | 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 SiO44- 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. |
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| Keywords: | Ti-Si mixed oxide sol-gel one step hydrolysis TiCl4. |
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