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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Journals >Journal of Radiation Research and Radiation Processing >Volume 42 >Issue 6 >Page 060206 > Article
- Journal of Radiation Research and Radiation Processing
- Vol. 42, Issue 6, 060206 (2024)

Fig. 1. SEM images (a),(b),EDS-mapping (c) and EDS (d) of 100 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

Fig. 3. XRD results of x-NiMoO4 sample

Fig. 4. XPS results of x-NiMoO4 sample: Ni 2p (a); Mo 3d (b)

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)

Fig. 6. Dynamic Fitting Process of x-NiMoO4 sample at different scan rate for peak (a)~(d) (color online)

Fig. 7. Pseudocapacitance ratio of 100 kGy-NiMoO4 sample at different scan rates (a)~(e)

Fig. 8. GCD curves (a)~(c) and 3D statistical diagram (d) of x-NiMoO4 sample at 1~15 A/g (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)

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)

Fig. 11. 5 000 cycle test curve of 100 kGy-NiMoO4/AC device at 10 A/g current density
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Table 1. EDS-mapping statistics of 20 kGy-NiMoO4,100 kGy-NiMoO4 and 200 kGy-NiMoO4 (%)
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Table 2. Kinetic fitting parameters,resistance fitting parameters and specific capacitance of x-NiMoO4 sample

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