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Title
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Phase transformation behavior of a two-dimensional zeolite
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Author
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Abstract
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| Understanding the molecular-level mechanisms of phase transformation in solids is of fundamental interest for functional materials such as zeolites. Two-dimensional (2D) zeolites, when used as shape-selective catalysts, can offer improved access to the catalytically active sites and a shortened diffusion length in comparison with their 3D analogues. However, few materials are known to maintain both their intralayer microporosity and structure during calcination for organic structure-directing agent (SDA) removal. Herein we report that PST-9, a new 2D zeolite which has been synthesized via the multiple inorganic cation approach and fulfills the requirements for true layered zeolites, can be transformed into the small-pore zeolite EU-12 under its crystallization conditions through the single-layer folding process, but not through the traditional dissolution/recrystallization route. We also show that zeolite crystal growth pathway can differ according to the type of organic SDAs employed. |
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Language
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English
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Source (journal)
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Angewandte Chemie: international edition in English. - Weinheim
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Publication
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Weinheim
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2019
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ISSN
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1433-7851
0570-0833
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DOI
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10.1002/ANIE.201904825
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Volume/pages
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58
:30
(2019)
, p. 10230-10235
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ISI
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000476452700030
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Pubmed ID
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31116498
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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