Morphology-controlled and nitrate anion-driven growth of S-MnO2 for reduced graphene oxide and Ti3C2Tx MXene-based high-energy-density flexible supercapacitor
  • Nair, Abhijith R.
  • Vetrikarasan, Thanigai B.
  • Bulakhe, Ravindra
  • Kim, Ji Man
  • Sawant, Shilpa N.
  • 외 1명
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초록

Supercapacitors (SCs) are promising energy storage devices for next-generation flexible electronics due to their high-power density, fast charge-discharge rates, and long cycle life. This study reports the electrochemical conversion of Mn3O4 into layered S-MnO2 via cycling in a sodium nitrate (NaNO3) electrolyte. The impact of cycling on the structural and electrochemical properties is investigated, with S-MnO2 obtained after 10 cycles (S-MnO2:10C) showing a high specific capacitance (Csp) of 174 F g- 1 at 1 A g-1. Flexible asymmetric supercapacitors (ASCs) are then fabricated using S-MnO2:10C as the positive electrode and either reduced graphene oxide (rGO) or Ti3C2Tx MXene as the negative electrode. The S-MnO2:10C//rGO device achieves an energy density (ED) of 10 & micro;Wh cm- 2 and a power density (PD) of 1124.4 & micro;W cm- 2, while the MXene-based ASC offers

키워드

ElectrodepositionManganese oxideElectrochemical transformationFlexible asymmetric supercapacitorBIRNESSITE MNO2CONVERSIONMN3O4NANOCOMPOSITEPERFORMANCEELECTRODENICO2O4SPHERES
제목
Morphology-controlled and nitrate anion-driven growth of S-MnO2 for reduced graphene oxide and Ti3C2Tx MXene-based high-energy-density flexible supercapacitor
저자
Nair, Abhijith R.Vetrikarasan, Thanigai B.Bulakhe, RavindraKim, Ji ManSawant, Shilpa N.Jagadale, Ajay D.
DOI
10.1016/j.jpowsour.2026.239980
발행일
2026-06-15
유형
Article
저널명
Journal of Power Sources
677