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Updated: Feb 8, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Zinc-Coordinated Nitrogen-Codoped Graphene as an Efficient Catalyst for Selective Electrochemical Reduction of CO2 to
Zhipeng Chen1,2, Kaiwen Mou1,2, Shunyu Yao1
1CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, Shandong, PR China.
Abstract:
Electrochemical reduction of CO2 to value-added chemicals by using renewable electricity offers a promising strategy to deal with rising CO2 emission and the energy crisis. Single-site zinc-coordinated nitrogen-codoped graphene (Zn-N-G) catalyzes the electrochemical reduction of CO2 to CO. The Zn-N-G catalyst exhibits excellent intrinsic activity toward CO2 reduction, reaching a faradaic efficiency of 91 % for CO production at a low overpotential of 0.39 V. X-ray absorption fine structure and X-ray photoelectron spectroscopy both confirm the presence of isolated Zn-Nx moieties, which act as the key active sites for CO formation. DFT calculations reveal the origin of enhanced activity for CO2 reduction on Zn-N-G catalysts. This work provide further understanding of the active centers on transition metal-nitrogen-carbon (M-N-C) catalysts for electrochemical reduction of CO2 to CO.
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