The relative stability of zeolite frameworks

G. Ooms, R.A. Santen, van, R.A. Jackson, C.R.A. Catlow

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Abstract

The question is examd. as to whether there is a theor. basis to an apparent relation that has been exptl. obsd. between the lattice topol. and the Al/Si ratio of zeolites. Calcns. are presented for 3 lattices formed with different Al/Si ratios, faujasite, mordenite, and ZSM-5. The relative stabilities of these lattices were studied as a function of Al/Si ratio in the presence or absence of adsorbed water. The Na+ are taken as the compensating ions. Two contrasting techniques, lattice energy minimization and extended Hueckel theory, were used. The energy differences of Al-free lattices are very small (.apprx.10 kH) and tend to decrease function of Al content. Wide pore zeolites tend to become stabilized with respect to medium pore zeolites at high Al content
Original languageEnglish
Title of host publicationInnovation in zeolite materials science : proceedings of an international symposium, Nieuwpoort (Belgium), September 13-17, 1987
EditorsP.J. Grobet, W.J. Mortier, R.A. Santen, van
Place of PublicationAmsterdam
PublisherElsevier
Pages317-322
ISBN (Print)0-444-42919-0
DOIs
Publication statusPublished - 1988
Eventconference; International Symposium on Innovation in Zeolite Materials Science ; (Nieuwpoort/Belgium) : 1987.09.13-18; 1987-09-13; 1987-09-18 -
Duration: 13 Sep 198718 Sep 1987

Publication series

NameStudies in Surface Science and Catalysis
Volume37
ISSN (Print)0167-2991

Conference

Conferenceconference; International Symposium on Innovation in Zeolite Materials Science ; (Nieuwpoort/Belgium) : 1987.09.13-18; 1987-09-13; 1987-09-18
Period13/09/8718/09/87
OtherInternational Symposium on Innovation in Zeolite Materials Science ; (Nieuwpoort/Belgium) : 1987.09.13-18

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Ooms, G., Santen, van, R. A., Jackson, R. A., & Catlow, C. R. A. (1988). The relative stability of zeolite frameworks. In P. J. Grobet, W. J. Mortier, & R. A. Santen, van (Eds.), Innovation in zeolite materials science : proceedings of an international symposium, Nieuwpoort (Belgium), September 13-17, 1987 (pp. 317-322). (Studies in Surface Science and Catalysis; Vol. 37). Amsterdam: Elsevier. https://doi.org/10.1016/S0167-2991(09)60609-1