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

C. C. Freyhardt, Michael Tsapatsis, R. F. Lobo, K. J. Balkus, M. E. Davis

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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 demand1-4, and have been sought for several decades4-7. 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 known2,8-12. 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.

Original languageEnglish (US)
Pages (from-to)295-298
Number of pages4
Issue number6580
StatePublished - May 23 1996

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    Freyhardt, C. C., Tsapatsis, M., Lobo, R. F., Balkus, K. J., & Davis, M. E. (1996). A high-silica zeolite with a 14-tetrahedral-atom pore opening. Nature, 381(6580), 295-298. https://doi.org/10.1038/381295a0