Volume 62, Issue 8 e202216735
Research Article

Reactivity and Recyclability of Ligand-Protected Metal Cluster Catalysts for CO2 Transformation

Guangjun Li

Guangjun Li

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China

These authors contributed equally to this work.

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Jun Hou

Jun Hou

Center for Green Innovation, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China

These authors contributed equally to this work.

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Xiaomei Lei

Xiaomei Lei

Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu, 610064 China

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Prof. Dan Li

Corresponding Author

Prof. Dan Li

Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu, 610064 China

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Enqi Yu

Enqi Yu

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China

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Weigang Hu

Weigang Hu

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China

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Xiao Cai

Xiao Cai

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China

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Xu Liu

Xu Liu

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China

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Prof. Mingyang Chen

Corresponding Author

Prof. Mingyang Chen

Center for Green Innovation, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083 China

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Prof. Yan Zhu

Corresponding Author

Prof. Yan Zhu

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China

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First published: 22 December 2022
Citations: 14

Graphical Abstract

Ligand-protected metal clusters composed of silver, gold, and copper integrate the merits of homogeneous and heterogeneous catalysts and exhibit an excellent reactivity and recyclability for CO2 formylation with secondary amines. Fundamental insights are provided into the heterogeneously catalyzed reaction and design rules are presented for preparation of metal clusters with high stability and recyclability.

Abstract

It remains a significant challenge to construct an integrated catalyst that combines advantages of homogeneous and heterogeneous catalysis with clarified mechanism and high performance. Here we show atomically precise CuAg cluster catalysts for CO2 capture and utilization, where two functional units are combined into the clusters: metal and ligand. Due to atomic resolution on total and local structures of such catalysts to be achieved, which disentangles heterogeneous imprecise systems and permits tracing the reaction processes via experiments coupled with theory, site-specific catalysis induced by metal-ligand synergy can be accurately elucidated. The CuAg cluster catalysts exhibit excellent reactivity and recyclability to forge the C−N bonding from CO2 formylation with secondary amines that can make the cluster catalysts more unique compared with typically homogeneous complexes.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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