Abstract
Given the numerous industrial applications of zeolites as adsorbents, catalysts, and ion-exchangers, the development of new zeolite structures is highly desired to expand their practical applications. Currently, a general route to develop new zeolite structures is to use interlayer expansion agents to connect layered silicates. In this review, we briefly summarize the novel zeolite structures constructed from the lamellar precursor zeolites MWW, RUB-36, PREFER, Nu-6(1), COK-5, and PLS-1 via interlayer expansion. The contents of the summary contain detailed experiments, physicochemical characterizations, possible expansion mechanisms, and catalytic properties. In addition, the insertion of metal heteroatoms (such as Ti, Fe, Sn) into the layered zeolite precursor through interlayer expansion, which could be helpful to modify the catalytic function, is discussed.
Highlights
In the past decades, a variety of novel zeolite structures have been synthesized, employing the practical application widely in industrial production as adsorbents, catalysts, and ion-exchangers, which has produced great economic benefits [1,2,3,4]
Interlayer-expansion zeolites (IEZs) usually use silylating agents or metal salt to connect layer silicates to novel 3D frameworks [35,36,37,38], which has led to several new microporous zeolite frameworks, such as ferrierite (FER) from PREFER, the MWW-type framework (MWW) from MCM-22 [30,38], COE-3 (CDO) from RUB-36 [39], and COE-5 (MFS) from COK-5 [40]
We briefly summarize the novel zeolite structures constructed from the lamellar precursor zeolites MWW, RUB-36, PREFER, Nu-6(1), COK-5, and PLS-1 via interlayer expansion (Table 2)
Summary
A variety of novel zeolite structures have been synthesized, employing the practical application widely in industrial production as adsorbents, catalysts, and ion-exchangers, which has produced great economic benefits [1,2,3,4]. Interlayer-expansion zeolites (IEZs) usually use silylating agents or metal salt to connect layer silicates to novel 3D frameworks [35,36,37,38], which has led to several new microporous zeolite frameworks, such as ferrierite (FER) from PREFER, the MWW-type framework (MWW) from MCM-22 [30,38], COE-3 (CDO) from RUB-36 [39], and COE-5. The microporous titanosilicate Ti-COE-4 zeolite is synthesized by interlayer expansion of TiRUB-36 with DHDMS [50] Another novel synthesis route involves using metal salts is to connect layered silicates instead of normal silylating agents. We briefly summarize the novel zeolite structures constructed from the lamellar precursor zeolites MWW, RUB-36, PREFER, Nu-6(1), COK-5, and PLS-1 via interlayer expansion (Table 2).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
