Journal of Inorganic Materials, Volume. 38, Issue 6, 647(2023)

Amorphous Vanadium Oxide Loaded by Metallic Nickel-copper towards High-efficiency Electrocatalyzing Hydrogen Production

Qiangqiang SUN, Zixuan CHEN, Ziyue YANG, Yimeng WANG, and Baoyue CAO*
Author Affiliations
  • Research Centre of Grapheme Technology and Application, Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, School of Chemical Engineering and Modern Materials, Shangluo University, Shangluo 726000, China
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    Figures & Tables(7)
    Different magnification SEM images of bare NF (a) and optimal VOx-NiCu/NF magnified by (b-d) 60000 times
    (a) EDX, (b) element mappings and (c) XRD patterns of VOx-NiCu/NF
    (a) TEM image with insert showing corresponding SAED image and (b) HRTEM image of VOx-NiCu/NF
    (a) Ni2p, (b) Cu2p, (c) V2p, and (d) O1s XPS spectra of VOx-NiCu/NF
    (a) LSV curves and (b) Tafel plots of electrodes towards HER, (c, d) durability and stability tests of VOx-NiCu/NF towards the HER by (c) multicurrent-step, (d) CV curves before and after 5000 cycles with insert showing SEM image after 5000 cycles, and (e) chronopotentiometry of VOx-NiCu/NF for 72 h Colorful figures are available on website
    (a) CV curves, (b) double-layer capacitance curves, (c) Nyquist plots with insert showing equivalent circuit and LSV curves by ECSA normalization of VOx-NiCu/NF towards HER Colorful figures are available on website
    • Table 1. HER activities of VOx-NiCu/NF with recently reported electrocatalysts in 1 mol·L-1 KOH alkaline solution

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      Table 1. HER activities of VOx-NiCu/NF with recently reported electrocatalysts in 1 mol·L-1 KOH alkaline solution

      MaterialTafel slope/ (mV·dec-1) η10/mV Ref.
      VOx-NiCu/NF36.935This work
      Co@N-CNT94.044[35]
      FeCoNi-HNTAs37.558[36]
      NiFeV/NF62.0125[37]
      Ni-Ce-Pr-Ho/NF121.678[38]
      N/C/MoP51.3169[39]
      CoxPy/NixPy-NPC84.0126[40]
      Ni/Mo2C/NC63.0180[41]
      Ni-B/graphene148187[42]
      CoS2/MoS2/NC80.0215[43]
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    Qiangqiang SUN, Zixuan CHEN, Ziyue YANG, Yimeng WANG, Baoyue CAO. Amorphous Vanadium Oxide Loaded by Metallic Nickel-copper towards High-efficiency Electrocatalyzing Hydrogen Production[J]. Journal of Inorganic Materials, 2023, 38(6): 647

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    Paper Information

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    Received: Oct. 24, 2022

    Accepted: --

    Published Online: Oct. 17, 2023

    The Author Email: Baoyue CAO (231052@slxy.edu.cn)

    DOI:10.15541/jim20220625

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