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Issue 21, 2020
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Efficient Cu catalyst for 5-hydroxymethylfurfural hydrogenolysis by forming Cu–O–Si bonds

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Abstract

Selective hydrogenolysis of C–O bonds of biomass derived precursors has been identified as a promising and essential way to produce fuel additives. Supported transition metals were explored to give efficient reactivity commonly based on a bifunctionality strategy. Here, we report that covalent bonding between SiO2 and Cu features a homologous bifunctional catalyst with metallic Cu and Lewis acidic Cu cations. The catalyst gave superior reactivity for the conversion of 5-hydroxymethylfurfural into 2,5-dimethylfuran. Lewis acidic cations had more predominant roles than metallic sites for C–O hydrogenolysis by stretching and dissociating C–O bonds, whereas they remained inactive for C[double bond, length as m-dash]C bonds. The results rationalize the valence-state-sensitive catalysis for chemistry involving C–O cleavage. The covalent metal–O–Si bonding provides an alternative for developing efficient catalysts since silicates with such a feature are versatile in nature.

Graphical abstract: Efficient Cu catalyst for 5-hydroxymethylfurfural hydrogenolysis by forming Cu–O–Si bonds

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Article information


Submitted
20 May 2020
Accepted
14 Aug 2020
First published
25 Aug 2020

Catal. Sci. Technol., 2020,10, 7323-7330
Article type
Paper

Efficient Cu catalyst for 5-hydroxymethylfurfural hydrogenolysis by forming Cu–O–Si bonds

Y. Zhu, X. Kong, B. Peng, L. Li, Z. Fang and Y. Zhu, Catal. Sci. Technol., 2020, 10, 7323
DOI: 10.1039/D0CY01032D

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