Fast room temperature lability of aluminosilicate zeolites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10403393" target="_blank" >RIV/00216208:11310/19:10403393 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=cLYoZwab3K" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=cLYoZwab3K</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-019-12752-y" target="_blank" >10.1038/s41467-019-12752-y</a>
Alternative languages
Result language
angličtina
Original language name
Fast room temperature lability of aluminosilicate zeolites
Original language description
Aluminosilicate zeolites are traditionally used in high-temperature applications at low water vapour pressures where the zeolite framework is generally considered to be stable and static. Increasingly, zeolites are being considered for applications under milder aqueous conditions. However, it has not yet been established how neutral liquid water at mild conditions affects the stability of the zeolite framework. Here, we show that covalent bonds in the zeolite chabazite (CHA) are labile when in contact with neutral liquid water, which leads to partial but fully reversible hydrolysis without framework degradation. We present ab initio calculations that predict novel, energetically viable reaction mechanisms by which Al-O and Si-O bonds rapidly and reversibly break at 300 K. By means of solid-state NMR, we confirm this prediction, demonstrating that isotopic substitution of (17)O( )in the zeolitic framework occurs at room temperature in less than one hour of contact with enriched water.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GA19-21534S" target="_blank" >GA19-21534S: Stability of zeolites under extreme conditions: hot liquid water and steam</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Communications [online]
ISSN
2041-1723
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
4690
UT code for WoS article
000490417700002
EID of the result in the Scopus database
2-s2.0-85073468436