Catalytic Activity of Mixed Al2O3-ZrO2 Oxides for Glucose Conversion into 5-Hydroxymethylfurfural

In the present work, a series of catalysts based on aluminum and zirconium oxides was studied for the transformation of glucose into 5-hydroxymethylfurfural. These catalysts were characterized by using experimental techniques, such as X-ray diffraction, N2 adsorption–desorptio...

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Main Authors:	Benjamín Torres-Olea, Sandra Mérida-Morales, Cristina García-Sancho, Juan Antonio Cecilia, Pedro Maireles-Torres
Format:	Article
Language:	English
Published:	MDPI AG 2020-08-01
Series:	Catalysts
Subjects:	glucose 5-hydroxymethylfurfural lignocellulosic biomass heterogeneous catalysts aluminum oxide zirconium oxide
Online Access:	https://www.mdpi.com/2073-4344/10/8/878

id	doaj-2d9710fec8a640b69f90a4574f8e56be
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spelling	doaj-2d9710fec8a640b69f90a4574f8e56be2020-11-25T03:51:45ZengMDPI AGCatalysts2073-43442020-08-011087887810.3390/catal10080878Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-HydroxymethylfurfuralBenjamín Torres-Olea0Sandra Mérida-Morales1Cristina García-Sancho2Juan Antonio Cecilia3Pedro Maireles-Torres4Departamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainIn the present work, a series of catalysts based on aluminum and zirconium oxides was studied for the transformation of glucose into 5-hydroxymethylfurfural. These catalysts were characterized by using experimental techniques, such as X-ray diffraction, N<sub>2</sub> adsorption–desorption at −196 °C, X-ray photoelectron spectroscopy, temperature-programmed desorption of NH<sub>3</sub> and CO<sub>2</sub>, and scanning transmission electron microscopy. The catalytic behavior in glucose dehydration was evaluated in a water-methyl isobutyl ketone biphasic system, in the presence of CaCl<sub>2</sub>, in order to minimize losses due to unwanted secondary reactions. High glucose conversion and 5-hydroxymethylfurfural (HMF) yield values were obtained in the presence of an Al(Zr)O<sub>x</sub> catalyst with an Al:Zr molar ratio of 7:3, reaching 97% and 47%, respectively, at 150 °C after 120 min. Under tested conditions, this catalyst retained most of its catalytic activity for four reuses.https://www.mdpi.com/2073-4344/10/8/878glucose5-hydroxymethylfurfurallignocellulosic biomassheterogeneous catalystsaluminum oxidezirconium oxide
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Benjamín Torres-Olea Sandra Mérida-Morales Cristina García-Sancho Juan Antonio Cecilia Pedro Maireles-Torres
spellingShingle	Benjamín Torres-Olea Sandra Mérida-Morales Cristina García-Sancho Juan Antonio Cecilia Pedro Maireles-Torres Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural Catalysts glucose 5-hydroxymethylfurfural lignocellulosic biomass heterogeneous catalysts aluminum oxide zirconium oxide
author_facet	Benjamín Torres-Olea Sandra Mérida-Morales Cristina García-Sancho Juan Antonio Cecilia Pedro Maireles-Torres
author_sort	Benjamín Torres-Olea
title	Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural
title_short	Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural
title_full	Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural
title_fullStr	Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural
title_full_unstemmed	Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural
title_sort	catalytic activity of mixed al<sub>2</sub>o<sub>3</sub>-zro<sub>2</sub> oxides for glucose conversion into 5-hydroxymethylfurfural
publisher	MDPI AG
series	Catalysts
issn	2073-4344
publishDate	2020-08-01
description	In the present work, a series of catalysts based on aluminum and zirconium oxides was studied for the transformation of glucose into 5-hydroxymethylfurfural. These catalysts were characterized by using experimental techniques, such as X-ray diffraction, N<sub>2</sub> adsorption–desorption at −196 °C, X-ray photoelectron spectroscopy, temperature-programmed desorption of NH<sub>3</sub> and CO<sub>2</sub>, and scanning transmission electron microscopy. The catalytic behavior in glucose dehydration was evaluated in a water-methyl isobutyl ketone biphasic system, in the presence of CaCl<sub>2</sub>, in order to minimize losses due to unwanted secondary reactions. High glucose conversion and 5-hydroxymethylfurfural (HMF) yield values were obtained in the presence of an Al(Zr)O<sub>x</sub> catalyst with an Al:Zr molar ratio of 7:3, reaching 97% and 47%, respectively, at 150 °C after 120 min. Under tested conditions, this catalyst retained most of its catalytic activity for four reuses.
topic	glucose 5-hydroxymethylfurfural lignocellulosic biomass heterogeneous catalysts aluminum oxide zirconium oxide
url	https://www.mdpi.com/2073-4344/10/8/878
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_version_	1724485800950759424

Catalytic Activity of Mixed Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> Oxides for Glucose Conversion into 5-Hydroxymethylfurfural

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