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Seed-induced synthesis of functional MFI zeolite materials: Method development, crystallization mechanisms, and catalytic properties
Frontiers of Chemical Science and Engineering ( IF 4.5 ) Pub Date : 2019-11-29 , DOI: 10.1007/s11705-019-1852-x
Zhaoqi Ye , Hongbin Zhang , Yahong Zhang , Yi Tang

As an important zeolite material, MFI zeolites, as well as their controllable synthesis, are of great interest in both basic and applied science. Among the developed synthetic approaches, the seed-induced method has gradually evolved into a facile, low-cost, and even green alternative to give zeolites the desirable physicochemical properties. In this review, we briefly summarize the development of seed-induced syntheses of diverse functional MFI zeolites, where the “living” seed crystals not only direct the formation of zeolitic framework but also function as special “templates” or “units” to fine-tune the zeolite materials with diverse sizes, shapes, compositions, morphologies and pore structures. Moreover, on the basis of their structural features and crystallization behaviors in seed-induced synthesis, we reveal the roles of seeds and discuss the related crystallization mechanisms including both classical and non-classical pathways. We also want to guide readers to investigate the structure-performance relationships between these functional MFI zeolite catalysts and suitable catalytic reactions.



中文翻译:

种子诱导的功能性MFI沸石材料的合成:方法开发,结晶机理和催化性能

作为一种重要的沸石材料,MFI沸石及其可控制的合成方法在基础科学和应用科学中都引起了极大的兴趣。在已开发的合成方法中,种子诱导方法已逐渐发展成为一种简便,低成本甚至绿色的替代方法,以赋予沸石所需的理化性质。在这篇评论中,我们简要总结了多种功能性MFI沸石的种子诱导合成技术的发展,其中“活”的晶种不仅指导沸石骨架的形成,而且还充当特殊的“模板”或“单元”,以精细地-调整具有各种尺寸,形状,组成,形态和孔隙结构的沸石材料。此外,根据它们在种子诱导合成中的结构特征和结晶行为,我们揭示了种子的作用,并讨论了相关的结晶机制,包括经典途径和非经典途径。我们还想引导读者研究这些功能性MFI沸石催化剂与合适的催化反应之间的结构性能关系。

更新日期:2020-04-21
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