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A high-silica zeolite with a 14-tetrahedral-atom pore opening

Freyhardt, C. C. and Tsapatsis, M. and Lobo, R. F. and Balkus, K. J., Jr. and Davis, M. E. (1996) A high-silica zeolite with a 14-tetrahedral-atom pore opening. Nature, 381 (6580). pp. 295-298. ISSN 0028-0836. http://resolver.caltech.edu/CaltechAUTHORS:20150520-103048442

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Abstract

Zeolites (microporous aluminosilicates) and related molecular sieves have found wide application as catalysts, sorbents and ion-exchange materials. New zeolites with large pores are much in demand, and have been sought for several decades. All known zeolites, both natural and synthetic, contain pores comprised of 12 or fewer tetrahedrally coordinated silicon or aluminium atoms (T-atoms), but several microporous aluminophosphates with wider pores are now known. The practical value of these large-pore phosphate-based materials is limited, however, by their poor thermal and hydrothermal stability. Here we report the synthesis of a high-silica zeolite with pores comprised of 14 T-atoms. Preliminary data indicate that this thermally stable large-pore material exhibits the kind of strong acidity that makes other zeolites useful catalysts.


Item Type:Article
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http://dx.doi.org/10.1038/381295a0 DOIArticle
http://www.nature.com/nature/journal/v381/n6580/abs/381295a0.htmlPublisherArticle
Additional Information:© 1996 Nature Publishing Group. Received 5 March; accepted 17 April 1996. We thank T. Vogt and D. E. Cox for their assistance in collecting the synchrotron powder XRD data, and the W. M. Keck Polymer Morphology Laboratory at the University of Massachussetts for the use of their electron microscopes. The data were collected at X7 A beam line at the National Synchrotron Light Source at Brookhaven National Laboratory (Upton, NY), that is supported by the Department of Energy, Division of Material Sciences and Division of Chemical Sciences. M.T. acknowledges support form the National Center for Electron Microscopy at Lawrence Berkeley Laboratory (NCEM/DOE fellowship). This work was supported by the Chevron Research and Technology Company (Richmond, California).
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Department of Energy (DOE)UNSPECIFIED
National Center for Electron Microscopy (NCEM)UNSPECIFIED
Chevron Research and Technology Co.UNSPECIFIED
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Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150520-103048442
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ID Code:57703
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 May 2015 18:26
Last Modified:20 May 2015 18:26

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