Synthesis of the RTH-type layer: the first small-pore, two dimensional layered zeolite precursor

Creators: Schmidt, Joel E.; Xie, Dan; Davis, Mark E.

Abstract

There are several distinct two-dimensional zeolite building layers that can condense through different stacking arrangements of the layers to form various three-dimensional framework materials. All known building layers are dense layers in that they do not contain 8-membered ring (MR) or larger pores perpendicular to the two-dimensional layers. Herein, we report a new material (CIT-10) that consists of a two-dimensional layer (termed "rth" layer) that contains an 8 MR perpendicular to the layer. Calcination of CIT-10 forms pure-silica RTH (SSZ-50). CIT-10 can be pillared to form a new framework material with a three-dimensional pore system of 8 and 10 MRs, denoted CIT-11, that can be calcined to form a new microporous material, denoted CIT-12.

Additional Information

© 2015 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Received 26th June 2015; Accepted 20th July 2015; First published online 27 Jul 2015. We would like to thank Dr Stacey Zones (Chevron Energy Technology Company) for insightful discussions and Thomas Rea (Chevron Energy Technology Company) for collecting the RED data. We would also like to thank Dr Sonjong Hwang (Caltech) for assistance with collecting the NMR spectra. We would like to thank Chevron Energy Technology Company for providing funding for this work. J.E.S. would like to thank the NDSEG for their support through a fellowship.

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