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 language | English (US) |
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Pages (from-to) | 3701-3706 |
Number of pages | 6 |
Journal | Chemistry of Materials |
Volume | 24 |
Issue number | 19 |
DOIs | |
State | Published - Sep 27 2012 |
ASJC Scopus subject areas
- Materials Chemistry
- Chemical Engineering(all)
- Chemistry(all)
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Datasets
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CCDC 939502: Experimental Crystal Structure Determination : catena-[hexadecakis(N,N-Dicyclohexyl-N-ethyl-N-methylammonium) icosahectakis(mu2-oxo)-hexapentaconta(germanium-silicon)]
Yu, Z. (Creator), Han, Y. (Creator), Zhao, L. (Creator), Huang, S. (Creator), Zheng, Q. (Creator), Lin, S. (Creator), Córdova, A. (Creator), Zou, X. (Creator), Sun, J. (Creator), Yu, Z. (Creator), Zhao, L. (Creator), Huang, S. (Creator), Zheng, Q. (Creator), Lin, S. (Creator), Córdova, A. (Creator), Zou, X. (Creator) & Sun, J. (Creator), Cambridge Crystallographic Data Centre, Mar 28 2014
DOI: 10.5517/cc10jmjp, http://hdl.handle.net/10754/624220
Dataset