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“Extracting” the Key Fragment in ETS‐10 Crystallization and Its Application in AM‐6 Assembly |
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| Authors: | Meiling Guo Prof Dr Zhaochi Feng Dr Guanna Li Dr Jan P Hofmann Dr Evgeny A Pidko Dr Pieter C M M Magusin Qiang Guo Prof Dr Bert M Weckhuysen Prof Dr Emiel J M Hensen Dr Fengtao Fan Prof Dr Can Li |
| Institution: | 1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023 (P.R. China), Fax: (+86)?41‐84694447;2. Graduate University of Chinese Academy of Sciences, No.19A Yuquanlu, Beijing, 100049 (P.R. China);3. Inorganic Chemistry and Catalysis, Debye Institute for NanoMaterials Science, Utrecht University, Universiteitsweg, 993584 CG Utrecht (The Netherlands);4. Inorganic Materials Chemistry, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands) |
| Abstract: | The mechanism of crystallization of microporous titanosilicate ETS‐10 was investigated by Raman spectroscopy combined with 29Si 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 TiO2 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. |
| Keywords: | crystallization hydrothermal synthesis Raman spectroscopy reaction mechanisms zeolites |