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Structure determination of zeolites by electron crystallography
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry.
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry.
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry.
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry.
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2008 (English)In: EMC 2008 14th European Microscopy Congress 1–5 September 2008, Aachen, Germany: 1, Instrumentation and methods / [ed] Martina Luysberg, Karsten Tillmann and Thomas Weirich, Berlin Heidelberg: Springer , 2008, 757-758 p.Conference paper, Published paper (Refereed)
Abstract [en]

Many zeolite structures have remained unsolved for a long time because of their structural complexity, the size of the crystallites or the presence of defects or impurities. By combining electron microscopy and X-ray powder diffraction data, some of them have been solved (e.g. the high-silica zeolite IM-5, which was first reported in 1998 [1] and recently solved using a charge-flipping structure solution algorithm [2] ), while for other zeolites, good X-ray powder diffraction data are hard to obtain (e.g. polymorph A or B of zeolite Beta). Here we demonstrate a complete structure determination of IM-5 (one of the most complicated zeolited) and polymorph B of zeolite Beta [3] using electron crystallography alone. This shows the power and advantage of structure determination by electron microscopy compared with the X-ray diffraction techniques. The method is general and can be applied to both zeolites and other materials, where the crystals are too small or the structure too complicated to be solved from X-ray powder diffraction data alone [4] . It is particularly useful for structures containing defects.

Place, publisher, year, edition, pages
Berlin Heidelberg: Springer , 2008. 757-758 p.
Series
Studies in surface science and catalysis, ISSN 0167-2991
Keyword [en]
IM-5, zeolite Beta, SAED, HRTEM, Electron crystallography
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-39243DOI: 10.1007/978-3-540-85156-1_379ISBN: 978-3-540-85154-7 (print)OAI: oai:DiVA.org:su-39243DiVA: diva2:319177
Available from: 2010-05-14 Created: 2010-05-14 Last updated: 2010-12-30Bibliographically approved

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Sun, JunliangZhang, DaliangHovmöller, SvenZou, Xiaodong
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