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<p>Energy storage devices are limited by the electrode materials used because of poor cycle stability and electrochemical performance. The non-renewable resources are increasing rapidly, so researchers have turned their attention to developing energy storage devices to meet global energy challenges. This study reports the fabrication of the WSe<sub>2</sub>@rGO nanohybrid using a hydrothermal approach following various techniques. For morphological analyses, a scanning electron microscope was used, and the fabricated WSe<sub>2</sub>@rGO nanohybrid showed nanosheet morphology. WSe<sub>2</sub>@rGO nanohybrid showed a specific capacitance of 1337 F/g at 1 A/g. The electrochemical analysis was employed to assess the stability of WSe<sub>2</sub>@rGO nanohybrid for a period of 5000 cycles for 45&#xa0;h. The charge transfer resistance of WSe<sub>2</sub>/rGO nanohybrid (0.94 Ω) exhibits a lower value compared to both WSe<sub>2</sub> (1.34 Ω) and rGO (2.82 Ω) determined through the Nyquist plot. The better electrochemical properties of the synthesized nanohybrid may be due to its bigger surface area, lower resistance and faster flow of electrolytic ions compared to pure samples. However, WSe<sub>2</sub>@rGO nanohybrid shows great promise as an electrode for future storage devices.</p>

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Electrochemical Evaluation of WSe2@rGO Nanohybrid for Supercapacitor Application

  • 期刊论文

  • 发表日期：

    2025年1月23日

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  • Abdul Khaliq,
  • Soumaya Gouadria,
  • Xiuzhi Yang,
  • Shaoyong Xu,
  • Jili Zha,
  • Bo Luo

摘要

Energy storage devices are limited by the electrode materials used because of poor cycle stability and electrochemical performance. The non-renewable resources are increasing rapidly, so researchers have turned their attention to developing energy storage devices to meet global energy challenges. This study reports the fabrication of the WSe2@rGO nanohybrid using a hydrothermal approach following various techniques. For morphological analyses, a scanning electron microscope was used, and the fabricated WSe2@rGO nanohybrid showed nanosheet morphology. WSe2@rGO nanohybrid showed a specific capacitance of 1337 F/g at 1 A/g. The electrochemical analysis was employed to assess the stability of WSe2@rGO nanohybrid for a period of 5000 cycles for 45 h. The charge transfer resistance of WSe2/rGO nanohybrid (0.94 Ω) exhibits a lower value compared to both WSe2 (1.34 Ω) and rGO (2.82 Ω) determined through the Nyquist plot. The better electrochemical properties of the synthesized nanohybrid may be due to its bigger surface area, lower resistance and faster flow of electrolytic ions compared to pure samples. However, WSe2@rGO nanohybrid shows great promise as an electrode for future storage devices.