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<p>The extensive use of metal oxide decorated with carbon-based materials for electrochemical energy storing devices has recently attracted considerable attention. The LaCoO<sub>3</sub>/rGO composite was fabricated for energy storage applications following different various analytical tools. The specific surface area of the LaCoO<sub>3</sub>@rGO composite 88&#xa0;m<sup>2</sup>/g which was greater than the individual counterparts. The nanocomposite exhibited outstanding electrochemical behavior with a specific capacitance of 1530&#xa0;F/g at 1&#xa0;A/g, found from galvanostatic charge–discharge plots, which showed stability after 5000 cycles with a low charge transfer resistance of 0.19 Ω&#xa0;cm<sup>2</sup> found from Nyquist plot. The addition of rGO into perovskites improved their electrochemical efficiency by providing a larger surface area and active sites and improved the conductivity. Moreover, the excellent stability of the composite shows it has potential to be used for next generation supercapacitor devices.</p>

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Development of LaCoO3 Nanoparticles Wrapped with rGO Sheets for Supercapacitor Devices

  • 期刊论文

  • 发表日期：

    2025年2月25日

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  • Zeinhom M. El-Bahy,
  • Najla AlMasoud,
  • Taghrid S. Alomar,
  • Amal A. Al-wallan,
  • Mahmood Ali,
  • Hafiz Muhammad Tahir Farid

摘要

The extensive use of metal oxide decorated with carbon-based materials for electrochemical energy storing devices has recently attracted considerable attention. The LaCoO3/rGO composite was fabricated for energy storage applications following different various analytical tools. The specific surface area of the LaCoO3@rGO composite 88 m2/g which was greater than the individual counterparts. The nanocomposite exhibited outstanding electrochemical behavior with a specific capacitance of 1530 F/g at 1 A/g, found from galvanostatic charge–discharge plots, which showed stability after 5000 cycles with a low charge transfer resistance of 0.19 Ω cm2 found from Nyquist plot. The addition of rGO into perovskites improved their electrochemical efficiency by providing a larger surface area and active sites and improved the conductivity. Moreover, the excellent stability of the composite shows it has potential to be used for next generation supercapacitor devices.