Publicación: Selective hydrogenation reactions of 5-hydroxymethylfurfural over Cu and Ni catalysts in water: Effect of Cu and Ni combination and the reagent purity
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2023
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info:eu-repo/semantics/openAccess
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Resumen
This work studies the catalytic properties of Cu and Ni catalysts, as well as the effect of Cu and Ni combination on the activity and selectivity during the aqueous phase hydrogenation of 5-hydroxymethylfurfural (HMF) in a batch reactor, at 60 °C under 30 bar H2. Catalysts with different Ni/Cu ratios (10 wt%) were synthesized over a high surface area graphite (HSAG). While Ni provides the bimetallic catalyst the capacity for hydrogenation of Cdouble bondO and Cdouble bondC groups, Cu contributes to suppress the hydrogenation of the furan ring, reaching a 99% of selectivity to the partial hydrogenated product, 2,5-di-hydroxymethylfuran (DHMF), over 5Cu5Ni/HSAG. The increase of reaction temperature (180 °C) conduced to the hydrolytic ring-opening and rearrangement of HMF. Under such reaction conditions, monometallic Ni afforded the highest yield towards the hydrogenative rearrangement product, 3-hydroxymethylcyclopentanone (81%). However, Cu and CuNi bimetallic catalysts were less reactive to the ring-rearrangement reaction and showed higher tendency to deactivation, especially when the HMF supplier contain sulfur impurities.
Descripción
The registered version of this article, first published in “Catalysis Today, Volume 423, 2023", is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.cattod.2023.01.028
La versión registrada de este artículo, publicado por primera vez en “Catalysis Today, Volume 423, 2023", está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.cattod.2023.01.028
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Palabras clave
Bimetallic catalysts, Carbon supports, 2,5-Di-hydroxymethylfuran, Furan derivatives, Hydroxymethylcyclopentanone, Selective hydrogenation
Citación
María V. Morales, José M. Conesa, Antonio J. Galvin, Antonio Guerrero-Ruiz, Inmaculada Rodríguez-Ramos, Selective hydrogenation reactions of 5-hydroxymethylfurfural over Cu and Ni catalysts in water: Effect of Cu and Ni combination and the reagent purity, Catalysis Today, Volume 423, 2023, 114021, ISSN 0920-5861, https://doi.org/10.1016/j.cattod.2023.01.028
Centro
Facultades y escuelas::Facultad de Ciencias
Departamento
Química Inorgánica y Química Técnica