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Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction

The aim of this study was the synthesis, characterization, and catalytic application of new hierarchical materials modified with tantalum and vanadium ions. These materials exhibit secondary porosity, thus allowing the reactant molecules to access the active sites of the material while maintaining t...

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Autores principales: Szczyglewska, Paulina, Feliczak-Guzik, Agnieszka, Chałupniczak, Sylwia, Nowak, Izabela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419380/
https://www.ncbi.nlm.nih.gov/pubmed/37570087
http://dx.doi.org/10.3390/ma16155383
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author Szczyglewska, Paulina
Feliczak-Guzik, Agnieszka
Chałupniczak, Sylwia
Nowak, Izabela
author_facet Szczyglewska, Paulina
Feliczak-Guzik, Agnieszka
Chałupniczak, Sylwia
Nowak, Izabela
author_sort Szczyglewska, Paulina
collection PubMed
description The aim of this study was the synthesis, characterization, and catalytic application of new hierarchical materials modified with tantalum and vanadium ions. These materials exhibit secondary porosity, thus allowing the reactant molecules to access the active sites of the material while maintaining the acidity and crystallinity of the zeolites. Based on the results, these systems were found to be highly active and selective in the oxidation of cyclohexene. The performance of the catalysts was compared in oxidation processes carried out by conventional and microwave-assisted methods. Microwave-assisted experiments showed that in the presence of a hierarchical FAU zeolite containing Ta, long reaction times could be shortened with increased activity and selectivity under the same residual experimental conditions.
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spelling pubmed-104193802023-08-12 Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction Szczyglewska, Paulina Feliczak-Guzik, Agnieszka Chałupniczak, Sylwia Nowak, Izabela Materials (Basel) Article The aim of this study was the synthesis, characterization, and catalytic application of new hierarchical materials modified with tantalum and vanadium ions. These materials exhibit secondary porosity, thus allowing the reactant molecules to access the active sites of the material while maintaining the acidity and crystallinity of the zeolites. Based on the results, these systems were found to be highly active and selective in the oxidation of cyclohexene. The performance of the catalysts was compared in oxidation processes carried out by conventional and microwave-assisted methods. Microwave-assisted experiments showed that in the presence of a hierarchical FAU zeolite containing Ta, long reaction times could be shortened with increased activity and selectivity under the same residual experimental conditions. MDPI 2023-07-31 /pmc/articles/PMC10419380/ /pubmed/37570087 http://dx.doi.org/10.3390/ma16155383 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Szczyglewska, Paulina
Feliczak-Guzik, Agnieszka
Chałupniczak, Sylwia
Nowak, Izabela
Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction
title Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction
title_full Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction
title_fullStr Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction
title_full_unstemmed Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction
title_short Hierarchical Zeolites Containing Vanadium or Tantalum and Their Application in Cyclohexene Epoxidation Reaction
title_sort hierarchical zeolites containing vanadium or tantalum and their application in cyclohexene epoxidation reaction
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419380/
https://www.ncbi.nlm.nih.gov/pubmed/37570087
http://dx.doi.org/10.3390/ma16155383
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