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The first zeolite with a tri-directional extra-large 14-ring pore system derived using a phosphonium-based organic molecule
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
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2015 (English)In: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, no 36, 7602-7605 p.Article in journal (Refereed) Published
Abstract [en]

A new germanosilicate zeolite (denoted as ITQ-53) with extra-large pores has been synthesised using tri-tertbutylmethylphosphonium cation as the organic structure directing agent (OSDA). Rotation electron diffraction (RED) was used to identify ITQ-53 from an initially-synthesised sample containing impurities, and to solve its structure. The structure was refined against PXRD data of pure ITQ-53 samples obtained after synthesis optimisation. ITQ-53 is the first example of extra-large pore zeolites with tri-directional interconnected 14 x 14 x 14-ring channels. It is stable up to at least 650 degrees C. The structure of ITQ-53 changes from monoclinic to orthorhombic upon calcination.

Place, publisher, year, edition, pages
2015. Vol. 51, no 36, 7602-7605 p.
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Chemical Sciences
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URN: urn:nbn:se:su:diva-117401DOI: 10.1039/c4cc10317cISI: 000353218700003PubMedID: 25697962OAI: oai:DiVA.org:su-117401DiVA: diva2:815259
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AuthorCount:8;

Available from: 2015-05-29 Created: 2015-05-19 Last updated: 2017-12-04Bibliographically approved

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