Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose

The one-pot production of succinic acid from glucose was investigated in pure hot water as solvent using Nb (0.02 and 0.05 moles%)-Beta zeolites obtained by a post-synthesis methodology. Structurally, they are comprised of residual framework Al-acid sites, extra-framework isolated Nb (V) and Nb(2)O(...

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Autores principales: El Fergani, Magdi, Candu, Natalia, Coman, Simona M., Parvulescu, Vasile I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149682/
https://www.ncbi.nlm.nih.gov/pubmed/29240713
http://dx.doi.org/10.3390/molecules22122218
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author El Fergani, Magdi
Candu, Natalia
Coman, Simona M.
Parvulescu, Vasile I.
author_facet El Fergani, Magdi
Candu, Natalia
Coman, Simona M.
Parvulescu, Vasile I.
author_sort El Fergani, Magdi
collection PubMed
description The one-pot production of succinic acid from glucose was investigated in pure hot water as solvent using Nb (0.02 and 0.05 moles%)-Beta zeolites obtained by a post-synthesis methodology. Structurally, they are comprised of residual framework Al-acid sites, extra-framework isolated Nb (V) and Nb(2)O(5) pore-encapsulated clusters. The Nb-modified Beta-zeolites acted as bi-functional catalysts in which glucose is dehydrated to levulinic acid (LA) which, further, suffers an oxidation process to succinic acid (SA). After the optimization of the reaction conditions, that is, at 180 °C, 18 bar O(2), and 12 h reaction time, the oxidation of glucose occurred with a selectivity to succinic acid as high as 84% for a total conversion.
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spelling pubmed-61496822018-11-13 Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose El Fergani, Magdi Candu, Natalia Coman, Simona M. Parvulescu, Vasile I. Molecules Article The one-pot production of succinic acid from glucose was investigated in pure hot water as solvent using Nb (0.02 and 0.05 moles%)-Beta zeolites obtained by a post-synthesis methodology. Structurally, they are comprised of residual framework Al-acid sites, extra-framework isolated Nb (V) and Nb(2)O(5) pore-encapsulated clusters. The Nb-modified Beta-zeolites acted as bi-functional catalysts in which glucose is dehydrated to levulinic acid (LA) which, further, suffers an oxidation process to succinic acid (SA). After the optimization of the reaction conditions, that is, at 180 °C, 18 bar O(2), and 12 h reaction time, the oxidation of glucose occurred with a selectivity to succinic acid as high as 84% for a total conversion. MDPI 2017-12-14 /pmc/articles/PMC6149682/ /pubmed/29240713 http://dx.doi.org/10.3390/molecules22122218 Text en © 2017 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
El Fergani, Magdi
Candu, Natalia
Coman, Simona M.
Parvulescu, Vasile I.
Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose
title Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose
title_full Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose
title_fullStr Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose
title_full_unstemmed Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose
title_short Nb-Based Zeolites: Efficient bi-Functional Catalysts for the One-Pot Synthesis of Succinic Acid from Glucose
title_sort nb-based zeolites: efficient bi-functional catalysts for the one-pot synthesis of succinic acid from glucose
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149682/
https://www.ncbi.nlm.nih.gov/pubmed/29240713
http://dx.doi.org/10.3390/molecules22122218
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