Journal of Inorganic Materials ›› 2021, Vol. 36 ›› Issue (11): 1145-1153.DOI: 10.15541/jim20210092

Special Issue: 【虚拟专辑】碳中和(2020~2021) 【能源环境】CO2绿色转换

• RESEARCH ARTICLE • Previous Articles     Next Articles

CuO/ZnO Composite Electrocatalyst: Preparation and Reduction of CO2 to Syngas

ZHANG Qingming1,2(), ZHU Min1, ZHOU Xiaoxia2()   

  1. 1. School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
    2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2021-02-13 Revised:2021-03-30 Published:2021-11-20 Online:2021-03-15
  • Contact: ZHOU Xiaoxia, associate professor. E-mail:
  • About author:ZHANG Qingming(1995-), male, Master candidate. E-mail:
  • Supported by:
    National Natural Science Foundation of China(51961165107);Shanghai International Cooperation Project(19520761000);Shanghai Natural Science Foundation(19ZR1464500)


The reduction of carbon dioxide (CO2) to syngas (a mixture of CO and H2) can not only realize the carbon cycle and decrease the greenhouse effect but also alleviate the energy crisis. Design of catalyst is the key to realize CO2 resource utilization. Herein, CuO and CuO/ZnO composite were prepared by metal ion co-precipitation method, and their performance of electrochemical CO2 reduction to syngas under different potentials was investigated by adjusting the catalyst components. The results show that the introduction of zinc (Zn) species can decrease the adsorption intensity of intermediate CO2•- on the catalyst, which leads to the decrease of Faraday efficiency (FE) of CO and the increase of FE of H2, thus achieving controllable regulation of CO/H2 in the range of 1/1-1/4 under different applied electrochemical potential. In particular, the total FE of syngas CO/H2 is up to 84% when the ratio of Cu to Zn in the precursor solution is 1 : 2.

Key words: CO2 reduction, syngas, CuO/ZnO, intermediate CO2•-

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