| 正硅酸乙酯的水解缩聚反应及多孔SiO_2粉体的制备 |
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| 引用本文： | 隋学叶,刘世权,程新.正硅酸乙酯的水解缩聚反应及多孔SiO_2粉体的制备[J].中国粉体技术,2006,12(3):35-39. |
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| 作者姓名： | 隋学叶 刘世权 程新 |
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| 作者单位： | 济南大学,材料科学与工程学院,山东,济南,250022 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 详细描述了正硅酸乙酯的水解缩聚反应过程,简要介绍了影响反应过程的相关因素;综述了气凝胶和有序介孔SiO2材料这两种以该反应为基础的、具有代表性的多孔SiO2粉体的制备,特别是对多孔SiO2微球的制备进行了比较。指出以正硅酸乙酯的水解缩聚反应为基本过程制得的SiO2粉体中无序排列的孔是普遍存在的,如在反应过程中引入模板剂或采用其它手段,无序排列的孔可变为有序的。
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| 关 键 词： | 正硅酸乙酯 水解缩聚 多孔SiO_2粉体 微球 |
| 文章编号： | 1008-5548（2006）03-0035-05 |
| 收稿时间： | 2005-04-14 |
| 修稿时间： | 2005-08-08 |
Hydrolysis Condensation of TEOS and Preparations of Porous Silica Powder |
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| SUI Xue-ye,LIU Shi-quan,CHENG Xin.Hydrolysis Condensation of TEOS and Preparations of Porous Silica Powder[J].China Powder Science and Technology,2006,12(3):35-39. |
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| Authors: | SUI Xue-ye LIU Shi-quan CHENG Xin |
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| Affiliation: | School of Materials science and engineering, Jinan university, Jinan, 250022, Shandong,china |
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| Abstract: | The hydrolysis and condensation reactions of tertraethyl orthosilicate (TEOS) were illustrated in detail.Some factors influencing the reactions were briefly introduced.The preparations of two representatives of porous silica powders based on the hydrolysis and condensation of TEOS, aerogel and ordered mesoporous silica, were reviewed in the second section. Comparisons among the syntheses of porous silica spheres were made. Finally, it was pointed out that the disordered pores were naturally formed in the powders synthesized by the hydrolysis and condensation of TEOS. If the templates or other means were included in the reaction process, the disorder pores might be ordered. |
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| Keywords: | tetraethy orthosilicate hydrolysis and condensation porous silica powders microsphere |
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