Dědeček Jiri, Tabor Edyta, Sklenak Stepan
J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 182 23, Prague 8, Czech Republic.
ChemSusChem. 2019 Feb 7;12(3):556-576. doi: 10.1002/cssc.201801959. Epub 2018 Dec 21.
The organization of Al atoms in the framework of Si-rich zeolites is very important and includes two classes: (i) the Al siting that determines which individual, crystallographically distinguishable framework T sites are occupied by Al atoms and (ii) the Al distribution, which describes the relation of two or more Al atoms in the framework, their distances, and the possibility of neighboring Al atoms to cooperate in the formation of active sites. The organization of Al significantly affects the catalytic properties of Si-rich, zeolite-based catalysts in acid and redox catalysis. Herein, what is known about the organization of Al in the framework of industrially very important pentasil-ring Si-rich zeolites (ZSM-5, beta zeolite, mordenite, ferrierite, MCM-22, and TNU-9), as well as the very promising SSZ-13 Si-rich zeolite with the CHA structure, is summarized.
富硅沸石骨架中铝原子的排列非常重要，包括两类：（i）铝原子的位置，它决定了晶体学上可区分的单个骨架T位中哪些被铝原子占据；（ii）铝分布，它描述了骨架中两个或多个铝原子的关系、它们之间的距离以及相邻铝原子在活性位点形成过程中协同作用的可能性。铝的排列显著影响了基于富硅沸石的催化剂在酸催化和氧化还原催化中的催化性能。本文总结了在工业上非常重要的五元环富硅沸石（ZSM-5、β沸石、丝光沸石、镁碱沸石、MCM-22和TNU-9）以及具有CHA结构且非常有前景的SSZ-13富硅沸石骨架中铝原子排列的相关知识。
