Influence of the ultrasonic-assisted synthesis on Al distribution in a MOR zeolite: from gel to resulting material

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00546717" target="_blank" >RIV/61388955:_____/21:00546717 - isvavai.cz</a>
Alternative codes found
RIV/61389013:_____/21:00546717
Result on the web
<a href="http://hdl.handle.net/11104/0323120" target="_blank" >http://hdl.handle.net/11104/0323120</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d1nj00685a" target="_blank" >10.1039/d1nj00685a</a>

Result language
angličtina
Original language name
Influence of the ultrasonic-assisted synthesis on Al distribution in a MOR zeolite: from gel to resulting material
Original language description
Two Al-rich mordenite samples were prepared by the same synthesis procedure except for the activation of the gel for which classical stirring and ultrasonic pretreatment was used. The organization of Al atoms both in the synthesis gel and zeolite product was investigated. Although both methods of the gel activation resulted in a similar transformation of Al and Si source according to NMR spectroscopy, stirring provided a significantly higher fraction of AlSiAl sequences in the gel compared to the ultrasonic pretreatment. These sequences were transferred to the zeolite product and were more populated in the conventionally prepared mordenite. Al atoms of AlSiAl sequences face different channels and mainly behave as single Al atoms, but they can also form Al pairs or close unpaired Al atoms, observed for the first time for mordenite.
Czech name
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Czech description
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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

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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