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<p>The rise in energy consumption requires the progression of effective energy storing systems to fulfil the energy necessities. A feasible approach is the development of unique nanostructures, which have proven to be excellent materials in hybrid supercapacitor electrodes. A cerium-based binary metal oxide in the perovskite phase, CeCuO<sub>3</sub> (CCO), for its outstanding performance and cost-effectiveness when combined with the remarkably versatile reduced graphene oxide, was developed via hydrothermal approach. The composite manufacturing process provides a substantial electroactive surface area (SA) of 52.1 m<sup>2</sup>/g for pristine sample and an increased SA of 81.96 m<sup>2</sup>/g for rGO@CCO, contributing via BET analysis and structurally validated using X-ray diffraction, Infrared spectroscopy and SEM (scanning electron microscopy). The key highlights of the study were to assess the electrochemical evaluation of rGO@CeCuO<sub>3</sub> by cyclic voltammetry, impedance spectroscopic analysis and galvanostatic charging-discharging tests. The rGO@CCO sample attained a outstanding capacitance of 1242&#xa0;F/g at an 1&#xa0;A/g applied current density and an exceptionally negligible solution resistance of 0.82 Ω in a 3&#xa0;M KOH electrolytic medium, maintaining excellent stability after 10000th CV cycles. This suggests that the potential applications for the fabricated electrode in next-generation flexible electronics include energy storage and conversion devices.</p>

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Development of CeCuO3 nanomaterials anchored on rGO sheets utilized as excellent electrode materials for supercapacitor

  • 期刊论文

  • 发表日期：

    2026年6月29日

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  • Muhammad Imtiaz,
  • Saira Riaz,
  • Haifa A. Alyousef,
  • B. M. Alotaibi,
  • Albandari .W. Alrowaily,
  • Eman Alzahrani,
  • Abhinav Kumar,
  • Rizwan Ul Hassan

摘要

The rise in energy consumption requires the progression of effective energy storing systems to fulfil the energy necessities. A feasible approach is the development of unique nanostructures, which have proven to be excellent materials in hybrid supercapacitor electrodes. A cerium-based binary metal oxide in the perovskite phase, CeCuO3 (CCO), for its outstanding performance and cost-effectiveness when combined with the remarkably versatile reduced graphene oxide, was developed via hydrothermal approach. The composite manufacturing process provides a substantial electroactive surface area (SA) of 52.1 m2/g for pristine sample and an increased SA of 81.96 m2/g for rGO@CCO, contributing via BET analysis and structurally validated using X-ray diffraction, Infrared spectroscopy and SEM (scanning electron microscopy). The key highlights of the study were to assess the electrochemical evaluation of rGO@CeCuO3 by cyclic voltammetry, impedance spectroscopic analysis and galvanostatic charging-discharging tests. The rGO@CCO sample attained a outstanding capacitance of 1242 F/g at an 1 A/g applied current density and an exceptionally negligible solution resistance of 0.82 Ω in a 3 M KOH electrolytic medium, maintaining excellent stability after 10000th CV cycles. This suggests that the potential applications for the fabricated electrode in next-generation flexible electronics include energy storage and conversion devices.