| 多重射流燃烧反应制备的TiO2/ SiO2纳米复合颗粒的形态和结构 |
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| 引用本文： | 胡彦杰,李春忠,顾锋,姜海波,赵尹.多重射流燃烧反应制备的TiO2/ SiO2纳米复合颗粒的形态和结构[J].无机化学学报,2006,22(12):2253-2257. |
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| 作者姓名： | 胡彦杰 李春忠 顾锋 姜海波 赵尹 |
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| 作者单位： | 超细材料制备与应用教育部重点实验室,华东理大学材料科学与工程学院,上海,200237 |
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| 基金项目： | 国家自然科学基金;上海市科委科技计划 |
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| 摘 要： | TiO2-SiO2 nanocomposite particles were prepared in premixed H2 / Air flame, and the morphology and structure of these nanocomposites were characterized by FTIR, XRD, TEM and HRTEM. The morphology of SiO2 / TiO2 nanocomposites was different from that of pure TiO2 or SiO2 nanoparticles, and the chemical bond of Ti-O-Si was found in the nanocomposites indicating that the TiO2 / SiO2 nanocomposites were not merely a physical mixture of TiO2 and SiO2. TiO2 nanocrystalline grains with sizes of 1～2 nm were homogeneously dispersed in the amorphous SiO2 matrix when TiCl4 and SiCl4 were mixed at molecular level in the flame. The particle size and rutile content decreased with increasing of SiO2 molar ratio.
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| 关 键 词： | 多重射流火焰 纳米复合 二氧化钛 二氧化硅 |
| 文章编号： | 1001-4861(2006)12-2253-05 |
| 收稿时间： | 2006-07-06 |
| 修稿时间： | 2006-08-23 |
Morphology and Structure of TiO2/ SiO2 Nanocomposites Prepared by Muti-jet Flame Reactor |
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| HU Yan-Jie,LI Chun-Zhong,GU Feng,JIANG Hai-Bo and ZHAO Yin.Morphology and Structure of TiO2/ SiO2 Nanocomposites Prepared by Muti-jet Flame Reactor[J].Chinese Journal of Inorganic Chemistry,2006,22(12):2253-2257. |
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| Authors: | HU Yan-Jie LI Chun-Zhong GU Feng JIANG Hai-Bo and ZHAO Yin |
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| Institution: | Key Laboratory for Ultrafine Materials of Ministry of Education of China, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237,Key Laboratory for Ultrafine Materials of Ministry of Education of China, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237,Key Laboratory for Ultrafine Materials of Ministry of Education of China, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237,Key Laboratory for Ultrafine Materials of Ministry of Education of China, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 and Key Laboratory for Ultrafine Materials of Ministry of Education of China, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 |
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| Abstract: | TiO2-SiO2 nanocomposite particles were prepared in premixed H2 / Air flame, and the morphology and structure of these nanocomposites were characterized by FTIR, XRD, TEM and HRTEM. The morphology of SiO2 / TiO2 nanocomposites was different from that of pure TiO2 or SiO2 nanoparticles, and the chemical bond of Ti-O-Si was found in the nanocomposites indicating that the TiO2 / SiO2 nanocomposites were not merely a physical mixture of TiO2 and SiO2. TiO2 nanocrystalline grains with sizes of 1~2 nm were homogeneously dispersed in the amorphous SiO2 matrix when TiCl4 and SiCl4 were mixed at molecular level in the flame. The particle size and rutile content decreased with increasing of SiO2 molar ratio. |
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| Keywords: | muti-jet flame nanocomposite titanium dioxide silicon dioxide |
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