Cu-ZrO2 catalysts with highly dispersed Cu nanoclusters derived from ZrO2@ HKUST-1 composites for the enhanced CO2 hydrogenation to methanol

Yu, Jiahui and Liu, Shuai and Mu, Xueliang and Yang, Gang and Luo, Xiang and Lester, Edward and Wu, Tao (2021) Cu-ZrO2 catalysts with highly dispersed Cu nanoclusters derived from ZrO2@ HKUST-1 composites for the enhanced CO2 hydrogenation to methanol. Chemical Engineering Journal, 419 . p. 129656. ISSN 13858947

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Abstract

In this study, a series of Cu-ZrO2 catalysts with highly dispersed Cu nanoclusters were prepared via the calcination and reduction of ZrO2@HKUST-1 precursors. These catalysts demonstrated an outstanding selectivity in the yield of methanol during CO2 hydrogenation. The space-time yield (STY) of methanol is 5.2 times higher than that of those similar catalysts reported by other researchers, which were prepared using conventional method and tested under the same testing conditions. Density functional theory (DFT) study revealed that the activation of CO2 occurs at the Cu-ZrO2 interfaces and facilitates the hydrogenation of CO2 to methanol. It is concluded that the controlled formation of the highly dispersed Cu nanoclusters not only provides a large number of highly efficient active centers for CO2 hydrogenation, but also leads the generation of more Cu-ZrO2 interfaces. These two effects contribute to the superior catalytic performance of the nano Cu-ZrO2 catalyst in CO2 hydrogenation.

Item Type: Article
Keywords: CO2 hydrogenation; Cu nano-clusterCu-ZrO2 interfaces; DFT simulation
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Chemical and Environmental Engineering
Identification Number: https://doi.org/10.1016/j.cej.2021.129656
Depositing User: Yu, Tiffany
Date Deposited: 12 May 2021 02:42
Last Modified: 07 Jun 2021 08:29
URI: http://eprints.nottingham.ac.uk/id/eprint/65315

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