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<p>The fast advancement of portable electronics necessitates the creation of cutting-edge energy storage devices. A potential solution to this ongoing problem is the development of compatible materials to be utilised in energy storage devices. Herein, we have fabricated a reduced graphene oxide-based Al<sub>2</sub>S<sub>3</sub> (Al<sub>2</sub>S<sub>3</sub>/rGO) composite utilising a simple hydrothermal method for exceptional performance and cost-efficient supercapacitor electrodes. The physical analysis demonstrated that Al<sub>2</sub>S<sub>3</sub> has aggregated nanoparticles that were effectively decorated on rGO sheets in a nanocomposite. The Al<sub>2</sub>S<sub>3</sub>/rGO displayed faradic redox behaviour and demonstrated an elevated specific capacitance (<i>C</i><sub>s</sub>) of 937 F/g along with exceptional cycling stability of 93.08% for 4000 cycles. Moreover, the Al<sub>2</sub>S<sub>3</sub>/rGO nanocomposite displayed tremendous energy density of 41.43 Wh/Kg at power density of 282 W/Kg. Also, an EIS study revealed that composite exhibited a small charge transfer resistance of 8.11 Ω. The robust interaction among rGO nanosheets and Al<sub>2</sub>S<sub>3</sub> is primarily responsible for superior electrochemical efficiency, which reduces inherent resistance and increases electrolyte ion/electron diffusion. These results showed that cutting-edge of Al<sub>2</sub>S<sub>3</sub>/rGO could be used for next-generation supercapacitors.</p>

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Investigation of metal chalcogenide/rGO nanohybrid supercapacitor as an efficient electrode for supercapacitor applications

  • 期刊论文

  • 发表日期：

    2025年4月22日

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  • Soumaya Gouadria,
  • F. F. Alharbi,
  • Muhammad Abdullah,
  • Mukhtiar Hussain,
  • Hafiz Muhammad Tahir Farid,
  • Salma Aman

摘要

The fast advancement of portable electronics necessitates the creation of cutting-edge energy storage devices. A potential solution to this ongoing problem is the development of compatible materials to be utilised in energy storage devices. Herein, we have fabricated a reduced graphene oxide-based Al2S3 (Al2S3/rGO) composite utilising a simple hydrothermal method for exceptional performance and cost-efficient supercapacitor electrodes. The physical analysis demonstrated that Al2S3 has aggregated nanoparticles that were effectively decorated on rGO sheets in a nanocomposite. The Al2S3/rGO displayed faradic redox behaviour and demonstrated an elevated specific capacitance (Cs) of 937 F/g along with exceptional cycling stability of 93.08% for 4000 cycles. Moreover, the Al2S3/rGO nanocomposite displayed tremendous energy density of 41.43 Wh/Kg at power density of 282 W/Kg. Also, an EIS study revealed that composite exhibited a small charge transfer resistance of 8.11 Ω. The robust interaction among rGO nanosheets and Al2S3 is primarily responsible for superior electrochemical efficiency, which reduces inherent resistance and increases electrolyte ion/electron diffusion. These results showed that cutting-edge of Al2S3/rGO could be used for next-generation supercapacitors.