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<p>The creation of electrode materials with high electrochemical activity and a large surface area is essential for better supercapacitor performance. In order to create a porous nanostructure with numerous electroactive sites, a NiMoO<sub>4</sub>/NiO (NMO/NO) nanocomposite was created in this work by co-precipitation, combustion, and calcination. The produced materials’ structural and electrochemical characteristics were thoroughly examined. Pure NiO (NO) and NiMoO<sub>4</sub> (NMO) electrodes showed specific capacitances of 75 and 58.15 F/g, respectively, at a current density of 1 A/g. At the same current density, however, the NMO/NO nanocomposite showed a significantly greater specific capacitance of 1020.9 F/g. This enhancement can be attributed to both a porous structure that offers more electroactive sites for charge storage and the synergistic interaction between NMO and NO. After 300 cycles of charge and discharge, the electrode retained roughly 55–60% of its base capacitance, indicating considerable stability throughout cycling. These findings suggest that the NMO/NO nanocomposite is a viable option for energy storage in supercapacitors.</p>

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Enhanced electrochemical performance of NiMoO4/NiO composite electrodes for supercapacitors applications

  • 期刊论文

  • 发表日期：

    2026年6月29日

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  • M. C. Halesh,
  • M. A. Bhavana,
  • S. Appu,
  • B. R. Anusha,
  • Sonapatel,
  • B. J. Rashmi,
  • Udayabhanu,
  • K. Prashantha

摘要

The creation of electrode materials with high electrochemical activity and a large surface area is essential for better supercapacitor performance. In order to create a porous nanostructure with numerous electroactive sites, a NiMoO4/NiO (NMO/NO) nanocomposite was created in this work by co-precipitation, combustion, and calcination. The produced materials’ structural and electrochemical characteristics were thoroughly examined. Pure NiO (NO) and NiMoO4 (NMO) electrodes showed specific capacitances of 75 and 58.15 F/g, respectively, at a current density of 1 A/g. At the same current density, however, the NMO/NO nanocomposite showed a significantly greater specific capacitance of 1020.9 F/g. This enhancement can be attributed to both a porous structure that offers more electroactive sites for charge storage and the synergistic interaction between NMO and NO. After 300 cycles of charge and discharge, the electrode retained roughly 55–60% of its base capacitance, indicating considerable stability throughout cycling. These findings suggest that the NMO/NO nanocomposite is a viable option for energy storage in supercapacitors.