These authors contributed equally to the work.
Catalytic Properties of a Hierarchical Zeolite Synthesized from a Natural Aluminosilicate Mineral without the Use of a Secondary Mesoscale Template
Article first published online: 20 JUN 2013
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 5, Issue 8, pages 2258–2269, August 2013
How to Cite
Ding, J., Liu, H., Yuan, P., Shi, G. and Bao, X. (2013), Catalytic Properties of a Hierarchical Zeolite Synthesized from a Natural Aluminosilicate Mineral without the Use of a Secondary Mesoscale Template. ChemCatChem, 5: 2258–2269. doi: 10.1002/cctc.201300049
- Issue published online: 25 JUL 2013
- Article first published online: 20 JUN 2013
- Manuscript Revised: 24 MAR 2013
- Manuscript Received: 19 JAN 2013
- National Natural Science Foundation of China. Grant Number: 21276270
- National Basic Research Program of China. Grant Number: 2010CB226905
- hydrothermal synthesis;
- mesoporous materials
A hierarchical ZSM-5 zeolite with a bimodal meso-microporous system, high crystallinity, and a large surface area and meso-micropore volume was successfully synthesized from a natural layered aluminosilicate mineral rectorite without using a secondary mesoscale template. The physicochemical and catalytic properties of the hierarchical ZSM-5 zeolite were extensively characterized. The results showed that the mesopores of the synthesized hierarchical ZSM-5, which are almost slitlike intercrystal pores, originate from the construction of primary nanorods of the ZSM-5 zeolite. Analysis of the crystallization process revealed that the undissolved rectorite debris acted as seed crystals and played a structure-directing role, which is the key factor that influences the formation of the hierarchical structure. Such a hierarchical ZSM-5 zeolite, as a result of its unique structural characteristics and increased accessibility of acid sites, possessed a remarkably enhanced activity for the cracking of 1,3,5-triisopropylbenzene, a dramatically higher anti-deactivation ability for cumene conversion, and a significantly improved propylene-boosting performance for heavy oil cracking than the other catalysts tested.