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High-Silica Zeolite SSZ-61 with Dumbbell-Shaped Extra-Large-Pore Channels
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2014 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 53, no 39, 10398-10402 p.Article in journal (Refereed) Published
Abstract [en]

The synthesis of the high-silica zeolite SSZ-61 using a particularly bulky polycyclic structure-directing agent and the subsequent elucidation of its unusual framework structure with extra-large dumbbell-shaped pore openings are described. By using information derived from a variety of X-ray powder diffraction and electron microscopy techniques, the complex framework structure, with 20 Si atoms in the asymmetric unit, could be determined and the full structure refined. The Si atoms at the waist of the dumbbell are only three-connected and are bonded to terminal O atoms pointing into the channel. Unlike the six previously reported extra-large-pore zeolites, SSZ-61 contains no heteroatoms in the framework and can be calcined easily. This, coupled with the possibility of inserting a catalytically active center in the channel between the terminal O atoms in place of H+, afford SSZ-61 intriguing potential for catalytic applications.

Place, publisher, year, edition, pages
2014. Vol. 53, no 39, 10398-10402 p.
Keyword [en]
electron microscopy, microporous materials, structure elucidation, X-ray diffraction, zeolites
National Category
Chemical Sciences
URN: urn:nbn:se:su:diva-109020DOI: 10.1002/anie.201405658ISI: 000342760700020OAI: diva2:778176


Available from: 2015-01-09 Created: 2014-11-10 Last updated: 2015-01-09Bibliographically approved

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Wan, WeiZou, Xiaodong
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Department of Materials and Environmental Chemistry (MMK)
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