Phase transition induced hydrogen activation for enhanced furfural reductive amination over a CoCu bimetallic catalyst
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Original language | English |
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Pages (from-to) | 20338-20345 |
Journal / Publication | Chemical Science |
Volume | 15 |
Issue number | 48 |
Online published | 13 Nov 2024 |
Publication status | Published - 28 Dec 2024 |
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85209727386&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(a43927c6-9a93-4b9d-8f77-c8b33967da61).html |
Abstract
The synthesis of primary amines from renewable biomass and its derivatives through reductive amination has garnered significant attention. How to construct efficient non-noble-metal catalysts that enable low-temperature catalysis still remains challenging. Herein, we report a Cu-doped Co@CoOx heterostructure catalyst that features structural Co-CoCuOx bifunctional sites, which enable room temperature reductive amination of various aldehydes with 1.57-45 times higher efficiency than Co@CoOx, outperforming many reported non-noble and even noble metal catalysts. Experiments and DFT calculations indicate that Cu doping leads to a phase transition of Co from hcp to fcc, while electrons are transferred from Cu to Co, forming a dual active site with electron-rich Co closely interacting with CoCuOx. These electron-rich Co sites demonstrate excellent activity in the activation and dissociation of hydrogen, while the CuOx component facilitates hydrogen spillover at the CoCuOx interface, thus resulting in a highly efficient cooperative effect for the furfural (FAL) reductive amination. This work provides general guidance for the rational design of high-performance reductive amination catalysts for biomass upgrading. © 2024 The Royal Society of Chemistry.
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Phase transition induced hydrogen activation for enhanced furfural reductive amination over a CoCu bimetallic catalyst. / Wei, Yilin; Ma, Zixu; Liu, Beibei et al.
In: Chemical Science, Vol. 15, No. 48, 28.12.2024, p. 20338-20345.
In: Chemical Science, Vol. 15, No. 48, 28.12.2024, p. 20338-20345.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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