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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.chemmater.2c01059
|2 doi
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|a pubmed24n1522.xml
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|a (NLM)36032550
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|a DE-627
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|a eng
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|a Asselman, Karel
|e verfasserin
|4 aut
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|a HSIL-Based Synthesis of Ultracrystalline K,Na-JBW, a Zeolite Exhibiting Exceptional Framework Ordering and Flexibility
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|c 2022
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|a Text
|b txt
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 03.09.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 The Authors. Published by American Chemical Society.
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|a A reproducible synthesis strategy for ultracrystalline K,Na-aluminosilicate JBW zeolite is reported. The synthesis uses a Na-based hydrated silicate ionic liquid (HSIL) as a silicon source and gibbsite as the aluminum source. 27Al and 23Na NMR spectra exhibit crystalline second-order quadrupole patterns in the hydrated as well as dehydrated states and distinct resonances for different T-sites demonstrating an exceptional degree of order of the elements of the JBW framework, observed for the first time in a zeolite. Detailed structural analysis via NMR crystallography, combining powder X-ray diffraction and solid-state NMR of all elements (27Al, 29Si, 23Na, 39K, and 1H), reveals remarkable de- and rehydration behavior of the JBW framework, transforming from its as-made hydrated structure via a modified anhydrous state into a different rehydrated symmetry while showing astonishing flexibility for a semicondensed aluminosilicate. Its crystallinity, exceptional degree of ordering of the T atoms and sodium cations, and the fully documented structure qualify this defect-free K,Na-aluminosilicate JBW zeolite as a suitable model system for developing NMR modeling methods
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|a Journal Article
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|a Radhakrishnan, Sambhu
|e verfasserin
|4 aut
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|a Pellens, Nick
|e verfasserin
|4 aut
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|a Chandran, C Vinod
|e verfasserin
|4 aut
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|a Houlleberghs, Maarten
|e verfasserin
|4 aut
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|a Xu, Yijue
|e verfasserin
|4 aut
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| 700 |
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|a Martens, Johan A
|e verfasserin
|4 aut
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|a Sree, Sreeprasanth Pulinthanathu
|e verfasserin
|4 aut
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|a Kirschhock, Christine E A
|e verfasserin
|4 aut
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| 700 |
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|a Breynaert, Eric
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Chemistry of materials : a publication of the American Chemical Society
|d 1998
|g 34(2022), 16 vom: 23. Aug., Seite 7159-7166
|w (DE-627)NLM098194763
|x 0897-4756
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:16
|g day:23
|g month:08
|g pages:7159-7166
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|u http://dx.doi.org/10.1021/acs.chemmater.2c01059
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