Engineering growth defects: A new route towards hierarchical ZSM-5 zeolite with high-density intracrystalline mesopores

Baoliang Peng, Houbing Zou, Lipeng He, Pingmei Wang, Zhiqiang Shi, Liangkui Zhu, Runwei Wang, Zongtao Zhang

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Hierarchical zeolites are promising solid acid catalysts for industrial processes and conversions of bulky molecules because they provide fast mass transfer along with size and shape selectivity; however, their synthesis always involves either complicated post-synthetic modifications or cost-intensive templates. In this work, engineering growth defects has been developed as a new and efficient strategy for preparing hierarchical ZSM-5 zeolite with high specific surface area and abundant uniform intracrystalline mesopores. This route only involved certain energy-efficient conditions, e.g., tender crystallization and mesotemplate-free conditions. Combining tender crystallization conditions with an optimal original Si/Al ratio (150-300) in a colloid synthesis system was found to be the key to successfully engineer the growth defects. Importantly, it even exhibited higher catalytic activities for benzaldehyde-alcohol condensation reactions than mesoporous ZSM-5 zeolite prepared using mesoscale templates.
Original languageEnglish (US)
Pages (from-to)7088-7094
Number of pages7
JournalCrystEngComm
Volume19
Issue number47
DOIs
StatePublished - Sep 29 2017
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2022-06-08
Acknowledged KAUST grant number(s): CRG-1-2012-LAI-009
Acknowledgements: This work was supported by the National Natural Science Foundation of China (21390394), the National Basic Research Program of China (2012CB821700, 2011CB808703), NSFC (21261130584, 91022030), the "111" project (B07016), the Award Project of KAUST (CRG-1-2012-LAI-009) and the Ministry of Education, Science and Technology Development Center Project (20120061130012).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

  • General Materials Science
  • General Chemistry
  • Condensed Matter Physics

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