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<p>The primary aim of this research is to develop a high-performance, environmentally friendly, and cost-effective supercapacitor electrode material. By enriching Resorcinol–Formaldehyde (RF) xerogel with bismuth trioxide (Bi₂O₃), the study aims to design an innovative electrode with high specific capacitance and rapid charge/discharge capability. X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR) analyses confirmed the successful synthesis of the Bi₂O₃/RF xerogel structure. Electrochemical performance, evaluated through cyclic voltammetry (CV) tests, demonstrated that the 10% Bi₂O₃/RF xerogel achieved a maximum specific capacitance of 45.2&#xa0;F g⁻<sup>1</sup> and an energy density of 25.2&#xa0;Wh kg⁻<sup>1</sup> at a current density of 0.1&#xa0;A g⁻<sup>1</sup>. Furthermore, the 5% Bi-doped xerogel exhibited a power density of 613.9&#xa0;W kg⁻<sup>1</sup> at a current density of 0.5&#xa0;A g⁻<sup>1</sup>. These results reveal a remarkable combination of high energy and power densities compared to xerogel-based supercapacitors with different dopants, highlighting the material’s strong potential for advanced energy storage applications.</p>

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High-power density electrode for supercapacitor applications: bismuth trioxide resolsinol formaldehyde xerogel

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月19日

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  • S. Korkmaz,
  • S. E. Bolsu Kariper,
  • İ. A. Kariper

摘要

The primary aim of this research is to develop a high-performance, environmentally friendly, and cost-effective supercapacitor electrode material. By enriching Resorcinol–Formaldehyde (RF) xerogel with bismuth trioxide (Bi₂O₃), the study aims to design an innovative electrode with high specific capacitance and rapid charge/discharge capability. X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR) analyses confirmed the successful synthesis of the Bi₂O₃/RF xerogel structure. Electrochemical performance, evaluated through cyclic voltammetry (CV) tests, demonstrated that the 10% Bi₂O₃/RF xerogel achieved a maximum specific capacitance of 45.2 F g⁻1 and an energy density of 25.2 Wh kg⁻1 at a current density of 0.1 A g⁻1. Furthermore, the 5% Bi-doped xerogel exhibited a power density of 613.9 W kg⁻1 at a current density of 0.5 A g⁻1. These results reveal a remarkable combination of high energy and power densities compared to xerogel-based supercapacitors with different dopants, highlighting the material’s strong potential for advanced energy storage applications.