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<p>In the pursuit of advanced energy storage solutions, composite electrodes composed of carbon nanotubes (CNT), graphene oxide (GO), and titanium dioxide (TiO<sub>2</sub>) have emerged as promising candidates for supercapacitor applications. This study investigates the synthesis and characterization of CNT/GO/TiO<sub>2</sub> composite electrodes designed to enhance supercapacitor performance. The composites were synthesized using the hydrothermal method and subsequently characterized by employing various techniques. The electrochemical performance of the nanocomposite-based electrode was evaluated in two-electrode configurations using a 1&#xa0;M KCl electrolyte. The results demonstrate that the synergistic effects of each component significantly enhance the electrochemical properties, which include high specific capacitance (C<sub>sp</sub>) of 200 F/g at 10&#xa0;mV/s and discharge-specific capacitance (C<sub>dsp</sub>) of 187.25 at 1.5 A/g, improved cycle stability at 2 A/g for over 20,000 cycles, and excellent retention of 60.75%. At 1.5 A/g, the energy density is 37.45 Wh/kg, with a power density of 1800 W/kg. This comprehensive analysis provides critical insights into the potential of CNT/GO/TiO<sub>2</sub> composites as high-performance materials for next-generation supercapacitors.</p>

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Investigating a nanocomposite electrode composed of carbon nanotubes/graphene oxide and titanium dioxide (CNT/GO/TiO2) for supercapacitors application

  • 期刊论文

  • 发表日期：

    2026年3月27日

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  • Mohammad Moeen Hasan Raza,
  • Firoz Khan,
  • Javid Ali,
  • Mohd Sadiq

摘要

In the pursuit of advanced energy storage solutions, composite electrodes composed of carbon nanotubes (CNT), graphene oxide (GO), and titanium dioxide (TiO2) have emerged as promising candidates for supercapacitor applications. This study investigates the synthesis and characterization of CNT/GO/TiO2 composite electrodes designed to enhance supercapacitor performance. The composites were synthesized using the hydrothermal method and subsequently characterized by employing various techniques. The electrochemical performance of the nanocomposite-based electrode was evaluated in two-electrode configurations using a 1 M KCl electrolyte. The results demonstrate that the synergistic effects of each component significantly enhance the electrochemical properties, which include high specific capacitance (Csp) of 200 F/g at 10 mV/s and discharge-specific capacitance (Cdsp) of 187.25 at 1.5 A/g, improved cycle stability at 2 A/g for over 20,000 cycles, and excellent retention of 60.75%. At 1.5 A/g, the energy density is 37.45 Wh/kg, with a power density of 1800 W/kg. This comprehensive analysis provides critical insights into the potential of CNT/GO/TiO2 composites as high-performance materials for next-generation supercapacitors.