Cooperative Surface Passivation and Hierarchical Structuring of Zeolite Beta Catalysts
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Título: | Cooperative Surface Passivation and Hierarchical Structuring of Zeolite Beta Catalysts |
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Autor/es: | Han, Sungmin | Linares, Noemi | Terlier, Tanguy | Hoke, Jeffrey B. | Garcia-Martinez, Javier | Li, Yuejin | Rimer, Jeffrey D. |
Grupo/s de investigación o GITE: | Laboratorio de Nanotecnología Molecular (NANOMOL) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Zeolite | Core-shell | Surface passivation | Mesoporosity | Biomass conversion |
Fecha de publicación: | 10-ago-2022 |
Editor: | Wiley-VCH GmbH |
Cita bibliográfica: | Angewandte Chemie International Edition. 2022, 61(41): e202210434. https://doi.org/10.1002/anie.202210434 |
Resumen: | We report a method to prepare core-shell zeolite beta (*BEA) with an aluminous core and an epitaxial Si-rich shell. This method capitalizes on the inherent defects in *BEA crystals to simultaneously passivate acid sites on external surfaces and increase intracrystalline mesoporosity through facile post-hydrothermal synthesis modification in alkaline media. This process creates more hydrophobic materials by reducing silanol defects and enriching the shell in silica via a combination of dealumination and the relocation of silica from the core to the shell during intracrystalline mesopore formation. The catalytic consequences of *BEA core-shells relative to conventional analogues were tested using the biomass conversion of levulinic acid and n-butanol to n-butyl levulinate as a benchmark reaction. Our findings reveal that siliceous shells and intracrystalline mesopores synergistically enhance the performance of *BEA catalysts. |
Patrocinador/es: | This work was supported by BASF Corporation. Additional support for JDR was provided by The Welch Foundation (Award E-1794). ToF-SIMS analysis was carried out with support provided by the National Science Foundation CBET-1626418. This work was conducted in part using resources of the Shared Equipment Authority at Rice University. JGM received funding for this project from the European Union’s Horizon 2020 research and innovation program under grant agreement No 872102. JGM and NL thank the Spanish Ministry of Science and Innovation and AEI/FEDER, UE through the project ref. RTI2018-099504-B-C21. NL acknowledges additional support from the University of Alicante (UATALENTO17-05). |
URI: | http://hdl.handle.net/10045/125979 |
ISSN: | 1433-7851 (Print) | 1521-3773 (Online) |
DOI: | 10.1002/anie.202210434 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 Wiley-VCH GmbH |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1002/anie.202210434 |
Aparece en las colecciones: | INV - NANOMOL - Artículos de Revistas Investigaciones financiadas por la UE |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Han_etal_2022_AngewChemIntEd_accepted.pdf | Accepted Manuscript (acceso abierto) | 892,23 kB | Adobe PDF | Abrir Vista previa |
Han_etal_2022_AngewChemIntEd_final.pdf | Versión final (acceso restringido) | 3,2 MB | Adobe PDF | Abrir Solicitar una copia |
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