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<p>Researchers are looking into alternate energy sources due to the exhaustion of fossil fuels, energy crisis, and environmental challenges, although supercapacitors (<i>S</i><sub>c</sub>) are promising energy storage devices due to their efficient specific capacitance (<i>C</i><sub>s</sub>), extended cycle life, and enhanced power delivery. The NiMnO<sub>3</sub> and Mo-doped NiMnO<sub>3</sub> electrode material was successfully created using a practical and effective hydrothermal process. The physical characterization of Mo-doped NiMnO<sub>3</sub> demonstrated that Mo doping altered the shape of NiMnO<sub>3</sub> material. Electrochemical investigation of Mo-doped NiMnO<sub>3</sub> exhibited substantial <i>C</i><sub><i>s</i></sub> of 684&#xa0;F/g obtained at current density (<i>C</i><sub>d</sub>) of 1&#xa0;A/g. The observed outcomes demonstrate an energy density (<i>E</i><sub>d</sub>) value of 11.11&#xa0;Wh/kg, a significant increase in ion diffusion efficiency, and outstanding power density (<i>P</i><sub>d</sub>) of 171&#xa0;W/kg at 1&#xa0;A/g. Furthermore, fabricated Mo-doped NiMnO<sub>3</sub> exhibited low impedance and remarkable 50-h cycling stability after 2500th cycles. The exceptional specific capacitance and extended cycle life of Mo-doped NiMnO<sub>3</sub> electrodes make it a potential material for next-generation supercapacitors.</p>

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Hydrothermal fabrication of Mo-doped NiMnO3 perovskite electrode for high-performance supercapacitors

  • 期刊论文

  • 发表日期：

    2025年9月11日

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  • Shaimaa A. M. Abdelmohsen,
  • Haifa A. Alyousef,
  • Areej Saleh Alqarny,
  • Najla Alotaibi,
  • Younis Ejaz,
  • Muhammad Imran,
  • Muhammad Abdullah

摘要

Researchers are looking into alternate energy sources due to the exhaustion of fossil fuels, energy crisis, and environmental challenges, although supercapacitors (Sc) are promising energy storage devices due to their efficient specific capacitance (Cs), extended cycle life, and enhanced power delivery. The NiMnO3 and Mo-doped NiMnO3 electrode material was successfully created using a practical and effective hydrothermal process. The physical characterization of Mo-doped NiMnO3 demonstrated that Mo doping altered the shape of NiMnO3 material. Electrochemical investigation of Mo-doped NiMnO3 exhibited substantial Cs of 684 F/g obtained at current density (Cd) of 1 A/g. The observed outcomes demonstrate an energy density (Ed) value of 11.11 Wh/kg, a significant increase in ion diffusion efficiency, and outstanding power density (Pd) of 171 W/kg at 1 A/g. Furthermore, fabricated Mo-doped NiMnO3 exhibited low impedance and remarkable 50-h cycling stability after 2500th cycles. The exceptional specific capacitance and extended cycle life of Mo-doped NiMnO3 electrodes make it a potential material for next-generation supercapacitors.