| MCM-41表面新戊基锆和氧化锆的制备 |
| Preparation of MCM-41 Surface Neopentylzirconium and Zirconia |
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| 摘要: 首次在高真空系统中利用Zr[CH2C(CH3)3]4与表面羟基的反应把-Zr[CH2C(CH3)3]2基团接枝在介孔硅胶MCM-41的表面上,经进一步氧化和水解得到了表面富锆MCM-41材料。采用元素分析、FTIR、固态NMR、X射线粉末衍射及吡啶化学吸附等分别表征了材料的组成及性质。初步研究表明接枝法制备的ZrMCM-41比水热法合成的样品有更好的吸附和催化性能。 |
| 关键词: ZrMCM-41 四新戊基锆 化学接枝 制备 |
| 基金项目: |
| Abstract: -Zr[CH2C(CH3)3]2 groups were grafted on surface of MCM-41 by a reaction with the surface hydroxyls in a high vacuum system for the first time. Hydrolysis or oxidation of the grafted groups resulted in richness of zirconium on the surface of MCM-41. The properties and composition of the materials were characterized by elemental analysis, FTIR, solid-state NMR, XRD and pyridine adsorption.The results showed that the catalytic and adsorptive performance of the grafted ZrMCM-41 was better than that of the hydrothermally synthesized ZrMCM-41. |
| Keywords: ZrMCM-41 tetraneopentylzirconium chemical grafting preparation |
| 投稿时间：2000-07-23 修订日期：2000-09-23 |
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| 王绪绪,赵慧霞,付贤智.MCM-41表面新戊基锆和氧化锆的制备[J].无机化学学报,2001,17(1):83-88. |
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