Journal of Inorganic Materials, Volume. 36, Issue 11, 1145(2021)

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

Qingming ZHANG1...2, Min ZHU1 and Xiaoxia ZHOU2,* |Show fewer author(s)
Author Affiliations
  • 11. School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 22. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • show less
    Figures & Tables(13)
    Schematic representation of the fabrication of CuO and CuO/ZnO catalyst and CO2 reduction process
    (a) Physical picture and (b) simplified model diagram for electrolytic cell of electrochemical CO2 reduction
    TEM images of catalysts (a, e) CuO, (b, f) CuO/ZnO-1, (c, g) CuO/ZnO-2 and (d, h) CuO/ZnO-3 (a-d) before and (e-h) after pyrolysis with elemental mapping images of CuO/ZnO-2 ((i) TEM, (j) Cu, (k) O and (l) Zn)
    (a) XRD patterns of CuO, CuO/ZnO-1, CuO/ZnO-2 and CuO/ZnO-3 electrocatalysts, (b) HRTEM image of CuO/ZnO-2, (c) total XPS survey of CuO/ZnO-2, (d) XPS Cu2p spectra of CuO/ZnO-2 and CuO, (e) XPS Zn2p3/2 spectrum of CuO/ZnO-2, and (f) XPS high resolution O1s spectra of CuO/ZnO-2 and CuO
    (a) Linear sweep voltammetry curves (LSVs) in N2/CO2-saturated KHCO3, (b) electrochemical impedance spectra (EIS) of CuO and CuO/ZnO catalyst
    (a) Reduction activity of CO2 in CO2-saturated KOH solution (CO2-KOH) and N2-saturated KHCO3 solution (N2-KHCO3); Histograms for FE of the CO2 reduction products and the ratios of CO/H2 for (b) CuO, (c) CuO/ZnO-1, (d) CuO/ZnO-2 and (e) CuO/ ZnO-3; (f) Cyclic stability of CuO/ZnO-2 (black square and red dot indicate Faraday efficiencies of H2 and CO, respectively)
    Capacitive ΔJ/2 versus scan rate for (a) CuO, (b) CuO/ZnO-1, (c) CuO/ZnO-2, and (d) CuO/ZnO-3
    (a) Oxidation LSVs of CuO, CuO/ZnO-1, CuO/ZnO-2 and CuO/ZnO-3 in 0.1 mol/L KOH; (b) Infrared spectra of the CuO/ZnO-2 catalyst before and after reaction; (c) Schematic formation process of CO
    (a) N2 adsorption/desorption curves and (b) pore size distributions of CuO, CuO/ZnO-1, CuO/ZnO-2 and CuO/ZnO-3 electrocatalysts
    i-t curves of (a) CuO, (b) CuO/ZnO-2, (c) CuO/ZnO-2 and (d) CuO/ZnO-3
    TEM image of catalyst CuO/ZnO-2 after cyclic stability test
    (a) CV curves for (a) CuO, (b) CuO/ZnO-1, (c) CuO/ZnO-2 and (d) CuO/ZnO-3 at different scan rates
    • Table 1. Analysis of the surface elemental content

      View table
      View in Article

      Table 1. Analysis of the surface elemental content

      SampleAtomic percent/%
      CuZnOC
      CuO30.77043.9025.33
      CuO/ZnO-130.916.7346.3416.02
      CuO/ZnO-226.7810.3945.9816.85
      CuO/ZnO-319.9512.9542.2225.44
    Tools

    Get Citation

    Copy Citation Text

    Qingming ZHANG, Min ZHU, Xiaoxia ZHOU. CuO/ZnO Composite Electrocatalyst: Preparation and Reduction of CO2 to Syngas [J]. Journal of Inorganic Materials, 2021, 36(11): 1145

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: RESEARCH ARTICLE

    Received: Feb. 13, 2021

    Accepted: --

    Published Online: Dec. 20, 2021

    The Author Email: ZHOU Xiaoxia (zhouxiaoxia@mail.sic.ac.cn)

    DOI:10.15541/jim20210092

    Topics