| H4SiW12O40/SiO2纳米粉体的溶胶-凝胶法合成与表征 |
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| 引用本文： | 周立群,柳士忠,樊莹. H4SiW12O40/SiO2纳米粉体的溶胶-凝胶法合成与表征[J]. 湖北大学学报(自然科学版), 2002, 24(1): 56-58 |
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| 作者姓名： | 周立群 柳士忠 樊莹 |
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| 作者单位： | 湖北大学化学与材料科学学院，湖北武汉430062 |
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| 基金项目： | 湖北省教育厅重大项目基金资助 ( 2 0 0 0Z0 10 0 9)，湖北大学重点项目基金资助 (A0 0 2 0 ) |
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| 摘 要： | 用正硅酸乙酯、正丁醇、水及硅钨酸为原料，通过Sol-Gel合成出H4SiW12O40/SiO2纳米粉体，采用IR、XRD、XPS、TEM等手段对其性能进行了表征。结果表明：H4SiW12O40与SiO2以共价键牢固结合，纳米粉体为典型的非晶态，平均料径为33nm，为开发性能性能的催化剂奠定基础。
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| 关 键 词： | H4SiW12O40／SiO2 纳米粉体 溶胶－凝胶法 合成 表征 酸型催化剂 催化性能 非晶态 |
| 文章编号： | 1000-2375(2002)01-0056-03 |
| 修稿时间： | 2001-09-19 |
Preparation and characterization of H4SiW12O40/SiO2 nano-powders by the sol-gel method |
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| Zhou Liqun,Liu Shizhong,Fan Ying. Preparation and characterization of H4SiW12O40/SiO2 nano-powders by the sol-gel method[J]. Journal of Hubei University(Natural Science Edition), 2002, 24(1): 56-58 |
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| Authors: | Zhou Liqun Liu Shizhong Fan Ying |
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| Abstract: | Nano-powders containing H 4SiW 12O 40/SiO 2,were prepared by the sol-gel method,with the materials,such as tetraethyl silicate,n-butyl alcohol,de-ionized water and tungstosilicate acid.The properties were investigated by IR,XRD,XPS and TEM.The results showed that the covalent bonds linked between H 4SiW 12O 40 and SiO 2,H 4SiW 12O 40/SiO 2 nano-powders were typical amorphous and the average size 33?nm,it may become a good catalytic materials. |
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| Keywords: | H 4SiW 12O 40/SiO 2 nano-powders sol-gel method preparation |
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