Intergrown new zeolite beta polymorphs with interconnected 12-ring channels solved by combining electron crystallography and single-crystal X-ray diffraction

Zhengbao Yu, Yu Han, Lan Zhao, Shiliang Huang, Qiyu Zheng, Shuangzheng Lin, Armando C. Cõrdova, Xiaodong Zou, Junliang Sun

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Two new polymorphs of zeolite beta, denoted as SU-78A and SU-78B, were synthesized by employing dicyclohexylammonium hydroxides as organic structure-directing agents. The structure was solved by combining transmission electron microscopy and single-crystal X-ray diffraction. SU-78 is an intergrowth of SU-78A and SU-78B and contains interconnected 12-ring channels in three directions. The two polymorphs are built from the same building layer, similar to that for the zeolite beta family. The layer stacking in SU-78, however, is different from those in zeolite beta polymorph A, B, and C, showing new zeolite framework topologies. SU-78 is thermally stable up to 600 °C. © 2012 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)3701-3706
Number of pages6
JournalChemistry of Materials
Volume24
Issue number19
DOIs
StatePublished - Sep 27 2012

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work is supported financially by the Swedish Research Council (VR) and the Swedish Governmental Agency for Innovation Systems (VINNOVA) through the Berzelii Center EXSELENT, the Major State Basic Research Development Program of China (No. 2011CB932501), the National Natural Science Foundation of China (No. 20932004).

ASJC Scopus subject areas

  • Materials Chemistry
  • General Chemical Engineering
  • General Chemistry

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