| 锌锡双金属掺杂MCM-41的合成及表征 | |
| Synthesis and Characterization of MCM-41 Doped with Bimetallic Tin and Zinc | |
| 摘要: 以硅酸钠为硅源, 锡酸钠，硝酸锌为金属源，十六烷基三甲基溴化铵为模板剂，采用直接水热合成法合成出了锌锡双金属同时掺杂的介孔MCM-41。通过ICP﹑XRD、TG-DTA﹑FTIR﹑HRTEM以及BET等技术对材料的结构和性质进行了表征。结果表明，合成的材料具有典型的六方介孔结构，比表面高，孔分布窄，热稳定性较高，且锌锡可能进入介孔MCM-41骨架中。该材料对苯酚羟基化反应具有良好的催化性能，双金属修饰MCM-41催化活性明显优于单组分掺杂。 | |
| 关键词: 锌锡双金属 MCM-41 | |
| 基金项目: | |
| Abstract: A series of bimetallic Zn-Sn modified MCM-41 with different amounts of tin and zinc were synthesized by direct hydrothermal method using sodium metasilicate nonahydrate, sodium stannate, zinc nitrate as silicon, tin, zinc source, respectively, and cetyltrimethylammonium bromide as template. Structure of the obtained materials was characterized using ICP, XRD, TG-DTA, FTIR, HRTEM and N2-adsorption techniques. Results revealed that all the materials exhibited a typical hexagonal arrangement of mesoporous structure with high surface area, narrow pore size distribution and relatively high thermal stability. The introduced heteroatoms were probably incorporated into the framework of MCM-41. Moreover, the prepared materials exhibited higher catalytic activity in the hydroxylation of phenol with H2O2 than that of the MCM-41 modified with mono metal. | |
| Keywords: Zinc/Tin MCM-41 | |
| 投稿时间：2005-05-08 修订日期：2005-09-26 | |
| 摘要点击次数: 1430 | |
| 全文下载次数: 2002 | |
| 蒋斯扬,周传林,孔岩,王重庆,李俊,王军.锌锡双金属掺杂MCM-41的合成及表征[J].无机化学学报,2005,21(12):1831-1837. | |
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