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  1. Nickel vanadium sulfide grown on nickel copper phosphide dendrites/Cu fibers for fabrication of all-solid-state wire-type micro-supercapacitors
Nickel vanadium sulfide grown on nickel copper phosphide dendrites/Cu fibers for fabrication of all-solid-state wire-type micro-supercapacitors
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Nickel vanadium sulfide grown on nickel copper phosphide dendrites/Cu fibers for fabrication of all-solid-state wire-type micro-supercapacitors

Naderi, L.

  1. DOI:10.1016/j.cej.2020.124880
  2. Main Entry: Naderi, L.
  3. Title:Nickel vanadium sulfide grown on nickel copper phosphide dendrites/Cu fibers for fabrication of all-solid-state wire-type micro-supercapacitors.
  4. Publisher:Elsevier B.V, 2020.
  5. Abstract:Herein, we have successfully fabricated NiVS/NiCuP nanostructures on Cu wire as a fiber electrode for high performance FSMSCs applications. The 3D NiCuP dendritic film was firstly deposited on Cu wire through the electrodeposition method, which not only act as a scaffold for deposition of the electroactive materials (NiV-LDH and NiV-S), but also served as a micro-porous current collector, supplied extra capacitances. Then, NiV-LDH nanosheets grown on 3D NiCuP film were obtained using a hydrothermal method. The sulfidation of NiV-LDH is carried out through an ion-exchange reaction of OH– with S2– to obtain NiVS, which maintains an ultrathin and porous structure, improves the electrical conductivity and reduces the diffusion resistance of the electrode. The as-prepared c-NiVS/NiCuP/CW electrode exhibits outstanding specific capacitance (13.4 F cm−2, 1.7 F cm−1, 1342.28 F cm−3 at a current density of 4 mA cm−2) compared with the pristine NiV-LDH and NiVS directly growing on Cu wire in the absence of 3D NiCuP film. Finally, a solid state asymmetric fiber-shaped micro-supercapacitor (FSAMSCs) is fabricated using c-NiVS/NiCuP/CW as the positive electrode and rGO/CF as the negative electrode. The assembled FSMSC device has a maximum operational voltage of 1.8 V and presented a high energy density of 295 µWh cm−2 (22.7 mWh cm−3 and 46.35 µWh cm−1) at a power density of 4.3 mW cm−2 (330.7 mW cm−3 and 674.7 µW cm−1) with an excellent cycling stability (91.5% of its initial specific capacitance after 3000 cycles) and good mechanical stability. These results suggest that the fabricated device has excellent potential as a power source for next generation flexible and portable fiber-based energy storage micro-devices. © 2020 Elsevier B.V
  6. Notes:Sharif Repository
  7. Subject:Cu wire.
  8. Subject:Fern- like dendritic.
  9. Subject:Fiber-shaped electrode.
  10. Subject:Flexible micro-supercapacitor.
  11. Subject:NiCu phosphide.
  12. Subject:NiV sulphide.
  13. Subject:Capacitance.
  14. Subject:Copper compounds.
  15. Subject:Electrodes.
  16. Subject:Fabrication.
  17. Subject:Fibers.
  18. Subject:Ion exchange.
  19. Subject:Mechanical stability.
  20. Subject:Nanosheets.
  21. Subject:Reduced graphene oxide.
  22. Subject:Sulfur compounds.
  23. Subject:Supercapacitor.
  24. Subject:Vanadium compounds.
  25. Subject:Wire.
  26. Subject:Diffusion resistance.
  27. Subject:Electrical conductivity.
  28. Subject:Electroactive material.
  29. Subject:Electrodeposition methods.
  30. Subject:High energy densities.
  31. Subject:Ion exchange reactions.
  32. Subject:Micro supercapacitors.
  33. Subject:Specific capacitance.
  34. Subject:Nickel compounds.
  35. Added Entry:Shahrokhian, S.
  36. Added Entry:Sharif University of Technology.
  37. Source: Chemical Engineering Journal ; Volume 392 , 15 July , 2020
  38. Web Site:https://www.sciencedirect.com/science/article/abs/pii/S1385894720308718

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