"Extracting" the key fragment in ETS-10 crystallization and its application in AM-6 assembly.
"Extracting" the key fragment in ETS-10 crystallization and its application in AM-6 assembly.
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DOI：
10.1002/chem.201200875
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发表时间：
2012-09
期刊：
影响因子：
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通讯作者：
M. Guo;Zhaochi Feng;Guanna Li;J. Hofmann;E. Pidko;P. Magusin;Q. Guo;B. Weckhuysen;E. Hensen;Fengtao Fan;Can Li
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文献类型：
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作者：
M. Guo;Zhaochi Feng;Guanna Li;J. Hofmann;E. Pidko;P. Magusin;Q. Guo;B. Weckhuysen;E. Hensen;Fengtao Fan;Can Li
通过拉曼光谱结合(29)Si魔角旋转(MAS)核磁共振波谱、DFT计算和SEM成像研究了微孔钛硅酸盐ETS-10的结晶机理。三元环物质的形成被证明是ETS-10水热合成的关键步骤。它们是通过复杂的过程形成的，该过程涉及反应混合物中硅酸盐物质的相互作用，从而促进 TiO(2) 颗粒的溶解。这些对 ETS-10 生长机制的见解导致成功开发了钒硅酸盐 AM-6 的新合成路线，其中涉及使用含有三元环物质的中间体作为引发剂。
The mechanism of crystallization of microporous titanosilicate ETS-10 was investigated by Raman spectroscopy combined with (29)Si magic-angle spinning (MAS) NMR spectroscopy, DFT calculations, and SEM imaging. The formation of three-membered ring species is shown to be the key step in the hydrothermal synthesis of ETS-10. They are formed by means of a complex process that involves the interaction of silicate species in the reaction mixture, which promotes the dissolution of TiO(2) particles. These insights into the mechanism of ETS-10 growth led to the successful development of a new synthesis route to the vanadosilicate AM-6 that involves the use of intermediates that contain three-membered ring species as an initiator.