Ligand-engineering Cu-based catalysts to accelerate the electrochemical reduction of CO2

Ying Liang; Rui Zhang; Kaihong Xiao; Fenghui Ye; Xinyue Ma; Wei Liu; Hanle Yin; Baoguang Mao; Xiangru Song; Chuangang Hu

doi:10.1039/D4CC00819G

Ligand-engineering Cu-based catalysts to accelerate the electrochemical reduction of CO₂†

Ying Liang,^a Rui Zhang,^b Kaihong Xiao,^a Fenghui Ye,^a Xinyue Ma,^a Wei Liu,*^c Hanle Yin,^a Baoguang Mao,*^a Xiangru Song^a and Chuangang Hu

*^a

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* Corresponding authors

^a State Key Laboratory of Organic–Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
E-mail: bgmao@buct.edu.cn, chuangang.hu@mail.buct.edu.cn

^b Engineering and Technology Research Center of Membranes for Chemical Industry, Beijing University of Chemical Technology, Beijing 100029, China

^c College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
E-mail: 2020500073@mail.buct.edu.cn

Abstract

Two typical Cu-based complex catalysts with piperazine (PR) and p-phenylenediamine (pPDA) ligands were designed to elucidate whether the ligands can tailor the reduction behavior of the Cu species and thus modulate their electrochemical CO₂ reduction reaction (eCO₂RR) activity. Specifically, Cu-PR underwent a significant in situ transformation into Cu nanoparticles enriched with a Cu^δ+/Cu⁰ interface for high eCO₂RR activity, compared to Cu-pPDA. This finding reveals the importance of ligand engineering in modulating the eCO₂RR performance of Cu-based complexes.

Chemical Communications

Ligand-engineering Cu-based catalysts to accelerate the electrochemical reduction of CO₂†

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Ligand-engineering Cu-based catalysts to accelerate the electrochemical reduction of CO₂

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