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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/61389013:_____/21:00546717

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

New Journal of Chemistry

ISSN

1144-0546

e-ISSN

1369-9261

Svazek periodika

45

Číslo periodika v rámci svazku

41

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

19294-19303

Kód UT WoS článku

000700138800001

EID výsledku v databázi Scopus

2-s2.0-85118294557