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首页> 外文期刊>Chemistry: A European journal >Silanization-Based Zeolite Crystallization: Participation Degree and Pathway
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Silanization-Based Zeolite Crystallization: Participation Degree and Pathway

机译：基于硅烷化的沸石结晶：参与度和途径

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摘要

A clear and deep understanding of zeolite crystallization with the addition of organosilane is desirable for the reasonable design and preparation of hierarchical zeolites. Herein, the effects of different organosilanes on zeolite crystallization were systematically studied. It was found that organosilane plays the role of an inhibitor in the silanization-based zeolite preparation, and this inhibition effect was determined by its participation degree. An organosilane with a high participation degree can result in the prolongation of nucleation and growth periods of zeolite as well as the variation of product properties. More importantly, a dynamic participation pathway of organosilane is proposed, that is, the growth of zeolite is accompanied by the continuous removal of organosilane, leading to an increase of product crystallinity as well as the decrease of mesoporosity. This study gives a new insight into the role that organosilane plays in zeolite crystallization, which will help to direct the rational selection of organosilane and design of crystallization condition for the optimal synthesis of hierarchical zeolites.
机译：对于合理设计和制备分级沸石，需要对添加有机硅烷的沸石结晶有清晰而深刻的理解。在本文中，系统地研究了不同有机硅烷对沸石结晶的影响。发现有机硅烷在基于硅烷化的沸石制备中起抑制剂的作用，并且该抑制作用由其参与程度决定。具有高参与度的有机硅烷可导致沸石的成核和生长期的延长以及产物性质的变化。更重要的是，提出了有机硅烷的动态参与途径，即，沸石的生长伴随着有机硅烷的连续去除，导致产物结晶度的增加以及介孔性的降低。这项研究为有机硅烷在沸石结晶中的作用提供了新的见解，这将有助于指导有机硅烷的合理选择和结晶条件的设计，以优化分层沸石的最佳合成。

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