• Journal of Radiation Research and Radiation Processing
  • Vol. 42, Issue 6, 060206 (2024)
Kai ZHANG1,2, Wei YAN1,2, Maosheng WU1,3, Yiwen LONG1..., Fan ZHANG1,2, Hongwei HAN1,4, Xiaolin CHENG1,3, Feng GUO1,4, Zhe XING1,2, Jiangtao HU1,2,** and Guozhong WU1,2,*|Show fewer author(s)
Author Affiliations
  • 1Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China
  • 2University of Chinese Academy of Sciences,Beijing 100049,China
  • 3ShanghaiTech University,Shanghai 14423,China
  • 4Shanghai University,Shanghai 10280,China
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    DOI: 10.11889/j.1000-3436.2024-0090 Cite this Article
    Kai ZHANG, Wei YAN, Maosheng WU, Yiwen LONG, Fan ZHANG, Hongwei HAN, Xiaolin CHENG, Feng GUO, Zhe XING, Jiangtao HU, Guozhong WU. In situ synthesis of NiMoO4 cathode with high cycle stability and high specific capacitance for supercapacitors on nickel foam via gamma irradiation[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060206 Copy Citation Text show less
    SEM images (a),(b),EDS-mapping (c) and EDS (d) of 100 kGy-NiMoO4
    Fig. 1. SEM images (a),(b),EDS-mapping (c) and EDS (d) of 100 kGy-NiMoO4
    SEM images of 20 kGy-NiMoO4 (a),(b),EDS-mapping (c) and EDS (d); SEM images (e),(f),EDS-mapping (g) and EDS (h) of 200 kGy- NiMoO4
    Fig. 2. SEM images of 20 kGy-NiMoO4 (a),(b),EDS-mapping (c) and EDS (d); SEM images (e),(f),EDS-mapping (g) and EDS (h) of 200 kGy- NiMoO4
    XRD results of x-NiMoO4 sample
    Fig. 3. XRD results of x-NiMoO4 sample
    XPS results of x-NiMoO4 sample: Ni 2p (a); Mo 3d (b)
    Fig. 4. XPS results of x-NiMoO4 sample: Ni 2p (a); Mo 3d (b)
    CV curve (a)~(c) of x-NiMoO4 sample at 2~100 mV/s and comparison curves of all samples at 30 mV/s(d) (color online)
    Fig. 5. CV curve (a)~(c) of x-NiMoO4 sample at 2~100 mV/s and comparison curves of all samples at 30 mV/s(d) (color online)
    Dynamic Fitting Process of x-NiMoO4 sample at different scan rate for peak (a)~(d) (color online)
    Fig. 6. Dynamic Fitting Process of x-NiMoO4 sample at different scan rate for peak (a)~(d) (color online)
    Pseudocapacitance ratio of 100 kGy-NiMoO4 sample at different scan rates (a)~(e)
    Fig. 7. Pseudocapacitance ratio of 100 kGy-NiMoO4 sample at different scan rates (a)~(e)
    GCD curves (a)~(c) and 3D statistical diagram (d) of x-NiMoO4 sample at 1~15 A/g (color online)
    Fig. 8. GCD curves (a)~(c) and 3D statistical diagram (d) of x-NiMoO4 sample at 1~15 A/g (color online)
    Nernst curves of x-NiMoO4sample between 0.01 Hz~100 kHz; charge/discharge curve for 10 000 cycles of 100 kGy-NiMoO4 at 10 A/g (b) (color online)
    Fig. 9. Nernst curves of x-NiMoO4sample between 0.01 Hz~100 kHz; charge/discharge curve for 10 000 cycles of 100 kGy-NiMoO4 at 10 A/g (b) (color online)
    100 kGy-NiMoO4//AC devices: CV curves under different voltage windows (a); CV curve (b) at different sweep speeds; nernst curve (c); GCD curve (d) under different current densities; statistical chart of specific capacitance (e); comparison of energy density and power density (f) (color online)
    Fig. 10. 100 kGy-NiMoO4//AC devices: CV curves under different voltage windows (a); CV curve (b) at different sweep speeds; nernst curve (c); GCD curve (d) under different current densities; statistical chart of specific capacitance (e); comparison of energy density and power density (f) (color online)
    5 000 cycle test curve of 100 kGy-NiMoO4/AC device at 10 A/g current density
    Fig. 11. 5 000 cycle test curve of 100 kGy-NiMoO4/AC device at 10 A/g current density

    原子

    Atom

    20 kGy-

    NiMoO4

    100 kGy-

    NiMoO4

    200 kGy-

    NiMoO4

    O21.9214.7122.98
    Ni46.0352.7840.57
    Mo32.0432.5136.45
    Table 1. EDS-mapping statistics of 20 kGy-NiMoO4,100 kGy-NiMoO4 and 200 kGy-NiMoO4 (%)

    样品

    Sample

    CV拟合面积/10-2

    CV area

    br2paipc/ ACV动力学参数 CV kineticsRs/ ΩRct/ ΩCs / (C·g-1)
    kpcR2pckpaR2pa
    20 kGy-NoMoO41.650.610.9980.0890.014 80.9970.021 70.9990.6625.7500.7
    100 kGy-NoMoO43.310.570.9990.1220.020 30.9990.022 70.9990.6916.8586.1
    200 kGy-NoMoO42.970.520.9990.1190.018 70.9990.018 30.9990.6917.7511.6
    Table 2. Kinetic fitting parameters,resistance fitting parameters and specific capacitance of x-NiMoO4 sample
    Kai ZHANG, Wei YAN, Maosheng WU, Yiwen LONG, Fan ZHANG, Hongwei HAN, Xiaolin CHENG, Feng GUO, Zhe XING, Jiangtao HU, Guozhong WU. In situ synthesis of NiMoO4 cathode with high cycle stability and high specific capacitance for supercapacitors on nickel foam via gamma irradiation[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060206
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