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The excellent electrochemical properties, structural and morphological advantages of cobalt oxide (Co3O4) have gained a lot of attention in the energy storage devices. The hydrothermally synthesised Co3O4 characterized using the XRD study exhibits the crystalline structure, phase purity. FESEM analysis reveals the formation of Co3O4 nanoneedle-like structures. This research study explored the capacitive- and morphology-dependant storage behavior of the Co3O4. The mixed capacitive behavior (capacitive and diffusion-controlled) and needle-like morphological structures of the synthesized Co3O4 electrode material enhances the supercapacitor performances, exhibiting the high specific capacitance of 2397 F g−1.

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Needle-Like Nanostructures and Mixed Storage Behaviour of Co3O₄ Electrode Materials for Improved Supercapacitor Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Koppula Naresh,
  • Vinay Pratap Singh Rajawat,
  • Thyda Lavanya,
  • Joel K. Joseph,
  • S. Suneetha,
  • Murali Mohan Seepana,
  • Kuppusamy Thangaraju

摘要

The excellent electrochemical properties, structural and morphological advantages of cobalt oxide (Co3O4) have gained a lot of attention in the energy storage devices. The hydrothermally synthesised Co3O4 characterized using the XRD study exhibits the crystalline structure, phase purity. FESEM analysis reveals the formation of Co3O4 nanoneedle-like structures. This research study explored the capacitive- and morphology-dependant storage behavior of the Co3O4. The mixed capacitive behavior (capacitive and diffusion-controlled) and needle-like morphological structures of the synthesized Co3O4 electrode material enhances the supercapacitor performances, exhibiting the high specific capacitance of 2397 F g−1.