Journal of Inorganic Materials, Volume. 36, Issue 6, 637(2021)

Amorphous Nd-Ni-B/NF Rare Earth Composites: Preparation and HER Electrocatalytic Performance

Yunna ZHU1... Biqing CHEN1,*, Tianshu CHENG2, Chan DU1, Shimin ZHANG1 and Jing ZHAO1 |Show fewer author(s)
Author Affiliations
  • 11. College of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810000, China
  • 22. Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215000, China
  • show less
    Figures & Tables(16)
    Schematic illustration for fabrication procedure of Nd-Ni-B/NF electrocatalysts
    SEM images of (a) NF and (b,c) 3-NNB/NF, (d) EDX mappings of 3-NNB/NF
    (a) TEM and (b) HRTEM images of 3-NNB/NF with inset in (b) showing the corresponding SAED pattern
    XRD patterns of 0-NNB/NF and 3-NNB/NF powders
    (a) LSV curves, (b) overpotentials at 20 mA∙cm-2, (c) Tafel curves (derived from (a)) and (d) exchange current densities (j0) derived from the Tafel curves of x-NNB/NF(x=0, 2, 3, 4, 5) and Pt/C electrodes; (e) CV curves of 3-NNB/NF electrode at different scan rates; (f) Coulomb curves of charge double-layer capacitance of x-NNB/NF(x=0, 2, 3, 4, 5) electrodes
    Nyquist plots of x-NNB/NF(x=0, 2, 3, 4, 5) electrodes towards HER with inset showing the corresponding equivalent circuit
    (a) LSV curves and (b) Tafel curves of NNB/NF-y(y=25, 35, 45, 55) electrodes
    (a-e) CV curves at different scan rates and Coulomb curves of charge double-layer capacitance for NNB/NF-y (y=25, 35, 45, 55) electrodes
    (a) I-t curve for NNB/NF-35 under 100 mV static overpotential for stability test 12 h; (b) Polarization curves of NNB/NF-35 before and after 2000 CV sweeps; (c) LSV curves and digital photos (insets) of NNB/NF-35 electrodes with different shapes; (d) Comparison of HER activities for different non-noble electrocatalytic materials in alkaline solution
    SEM images of x-NNB/NF(x=0, 2, 3, 4, 5)
    CV curves at different scan rates for x-NNB/NF(x=0, 2, 3, 4, 5)
    (a) SEM image and XRD pattern of 3-NNB/Cu-600 ℃; (b) LSV curves of 3-NNB/Cu and 3-NNB/Cu-600 ℃
    Faradaic efficiencies for HER catalyzed by NNB/NF-35 in 1.0 mol∙L-1 KOH
    SEM images of NNB/NF-35(a) before and (b) after the HER measurement for 12 h
    • Table 1. EIS parameters of x-NNB/NF(x=0, 2, 3, 4, 5) electrodes

      View table
      View in Article

      Table 1. EIS parameters of x-NNB/NF(x=0, 2, 3, 4, 5) electrodes

      ElectrodeRs/(Ω∙cm-2)RP/(Ω∙cm-2)Rct/(Ω∙cm-2)
      0-NNB/NF0.1951.5731.578
      2-NNB/NF0.1671.2941.310
      3-NNB/NF0.1521.2611.279
      4-NNB/NF0.1651.4381.455
      5-NNB/NF0.1661.5361.543
    • Table 2. Comparison of the electrocatalytic HER activity for representative nonprecious HER catalysts in 1.0 mol∙L-1 KOH electrolyte

      View table
      View in Article

      Table 2. Comparison of the electrocatalytic HER activity for representative nonprecious HER catalysts in 1.0 mol∙L-1 KOH electrolyte

      CatalystCurrent density@OverpotentialTafel slope/(mV∙dec-1)Ref.
      Nd-Ni-B/NF20 mA∙cm-2@180 mV117This work
      Ni-Co/RuO250 mA∙cm-2@180 mV168.3[1]
      Ni-Fe-S/Ti50 mA∙cm-2@126 mV269[2]
      V-Ni2P NSAs/CC10 mA∙cm-2@85 mV95[3]
      Ni-Fe-P10 mA∙cm-2@174.2 mV142.9[4]
      Ni/NiS10 mA∙cm-2@230 mV123[5]
      FeP Nanorod10 mA∙cm-2@218 mV146[6]
      Ni0.5Co0.5/NC10 mA∙cm-2@282 mV189[7]
      FeCoP Nanoarrays10 mA∙cm-2@175 mV132[8]
      Ni2P-NiSe210 mA∙cm-2@66 mV72.6[9]
      Ni-Co-P/NF10 mA∙cm-2@85 mV46[10]
    Tools

    Get Citation

    Copy Citation Text

    Yunna ZHU, Biqing CHEN, Tianshu CHENG, Chan DU, Shimin ZHANG, Jing ZHAO. Amorphous Nd-Ni-B/NF Rare Earth Composites: Preparation and HER Electrocatalytic Performance[J]. Journal of Inorganic Materials, 2021, 36(6): 637

    Download Citation

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

    Category: RESEARCH ARTICLE

    Received: Aug. 10, 2020

    Accepted: --

    Published Online: Nov. 25, 2021

    The Author Email: CHEN Biqing (chenbq2332@163.com)

    DOI:10.15541/jim20200450

    Topics