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Synthesis and Structure Determination of Large-Pore Zeolite SCM-14
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK). Shanghai Research Institute of Petrochemical Technology, China; East China University of Science and Technology, China.
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0002-5413-9038
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0003-0358-2379
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Number of Authors: 72017 (English)In: Chemistry - A European Journal, ISSN 0947-6539, E-ISSN 1521-3765, Vol. 23, no 66, p. 16829-16834Article in journal (Refereed) Published
Abstract [en]

SCM-14 (Sinopec Composite Material No. 14), a new stable germanosilicate zeolite with a 12 x 8 x 8-ring channel system, was synthesized using commercially available 4-pyrrolidinopyridine as organic structure-directing agents (OSDAs) in fluoride medium. The framework structure of SCM-14 was determined using rotation electron diffraction (RED), and refined against synchrotron X-ray powder diffraction (SXPD) data for both as-made and calcined materials. The framework structure of SCM-14 is closely related to that of three known zeolites: mordenite (MOR), GUS-1 (GON), and IM-16 (UOS). SCM-14 has the same projection as that of mordenite and GUS-1 when viewed along the 12-ring channels, and possesses two more straight 8-ring channels running perpendicular to the 12-ring channels. The structure of SCM-14 can be constructed by either the same layers as that of GUS-1 or the same columns as that of IM-16. Based on their structural relationship, three topologically reasonable hypothetical zeolites were predicted.

Place, publisher, year, edition, pages
2017. Vol. 23, no 66, p. 16829-16834
Keywords [en]
organic structure-directing agent, Rietveld refinement, structure determination, synthesis, zeolites
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-150894DOI: 10.1002/chem.201703361ISI: 000416549200020PubMedID: 28967679OAI: oai:DiVA.org:su-150894DiVA, id: diva2:1171785
Available from: 2018-01-08 Created: 2018-01-08 Last updated: 2018-01-08Bibliographically approved

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Smeets, StefPeng, FeiEtman, Ahmed S.
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