Balancing Ge de-intercalation and Si re-insertion rates stabilizes hydrolytically labile germanosilicate zeolites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F24%3A10490207" target="_blank" >RIV/00216208:11310/24:10490207 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/24:10490207

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=kxV9.0mEF6" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=kxV9.0mEF6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ta05539j" target="_blank" >10.1039/d4ta05539j</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Balancing Ge de-intercalation and Si re-insertion rates stabilizes hydrolytically labile germanosilicate zeolites

Popis výsledku v původním jazyce

Germanosilicate zeolites are attractive adsorbents and catalysts, thanks to their diverse structures and versatile textural properties. However, hydrolytic instability of such zeolites, even under ambient conditions, restricts their practical applications. In this study, we report dynamic changes in the state of the zeolite framework atoms due to Ge de-intercalation and Si re-insertion in aqueous medium and propose a strategy for stabilizing zeolites with planar and orthogonal locations of Ge-rich domains by managing both processes. Adjusting the acidity or temperature of the aqueous environment enabled Ge and Si atoms to reach balanced mobility, allowing Ge atoms to be leached and Si atoms to be inserted into the released positions, thereby stabilizing the zeolite framework. The developed approach offers a practical and controllable method for structural stabilization of any labile germanosilicate material, with potential applications in catalysis, as demonstrated after the incorporation of Al-associated acid centers.

Název v anglickém jazyce

Balancing Ge de-intercalation and Si re-insertion rates stabilizes hydrolytically labile germanosilicate zeolites

Popis výsledku anglicky

Germanosilicate zeolites are attractive adsorbents and catalysts, thanks to their diverse structures and versatile textural properties. However, hydrolytic instability of such zeolites, even under ambient conditions, restricts their practical applications. In this study, we report dynamic changes in the state of the zeolite framework atoms due to Ge de-intercalation and Si re-insertion in aqueous medium and propose a strategy for stabilizing zeolites with planar and orthogonal locations of Ge-rich domains by managing both processes. Adjusting the acidity or temperature of the aqueous environment enabled Ge and Si atoms to reach balanced mobility, allowing Ge atoms to be leached and Si atoms to be inserted into the released positions, thereby stabilizing the zeolite framework. The developed approach offers a practical and controllable method for structural stabilization of any labile germanosilicate material, with potential applications in catalysis, as demonstrated after the incorporation of Al-associated acid centers.

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Svazek periodika

12

Číslo periodika v rámci svazku

45

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

31195-31203

Kód UT WoS článku

001344218000001

EID výsledku v databázi Scopus

2-s2.0-85208678022