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<p>The Cu<sub>32</sub>S<sub>34</sub>: MnS<sub>2</sub> chalcogenide semiconductor-decorated electrode for supercapacitors was synthesized using the single-source precursor method and evaluated for its supercapacitive performance. The prepared bimetallic sulfides exhibited a narrow band gap of 2.52&#xa0;eV and an average crystallite size of 28.5&#xa0;nm. FTIR analysis confirmed the presence of metal sulfides and various other chemical bonds. The electrode displayed heterogeneous morphology with plate-like or elongated rod-like nanoparticles arranged in agglomerates. The electrochemical charge storage behavior was assessed, and cyclic voltammetry in 1&#xa0;M KOH revealed excellent charge storage properties, with a specific capacitance of 4078.7&#xa0;F g<sup>− 1</sup>, indicating significant potential for energy storage. Impedance studies further demonstrated a specific power density and an Rs value of 0.8 Ω. This shows that the thus synthesized bimetallic chalcogenide has great potential in large-scale applications of the electrochemical devices.</p>

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Unveiling Chalcogenide Semiconductor Cu32S34: MnS2 Electrodes for Supercapacitors Prepared via Single Source Precursor Method for a Brighter Tomorrow

  • 期刊论文

  • 发表日期：

    2025年11月16日

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  • Khurram Shahzad Ahmad,
  • Jehad S. Al-Hawadi,
  • Bhumikaben Makawana,
  • Ram K. Gupta,
  • Osama M. Alkhudhari,
  • Suliman A. Alderhami,
  • Amal Altujjar,
  • Shaan Bibi Jaffri

摘要

The Cu32S34: MnS2 chalcogenide semiconductor-decorated electrode for supercapacitors was synthesized using the single-source precursor method and evaluated for its supercapacitive performance. The prepared bimetallic sulfides exhibited a narrow band gap of 2.52 eV and an average crystallite size of 28.5 nm. FTIR analysis confirmed the presence of metal sulfides and various other chemical bonds. The electrode displayed heterogeneous morphology with plate-like or elongated rod-like nanoparticles arranged in agglomerates. The electrochemical charge storage behavior was assessed, and cyclic voltammetry in 1 M KOH revealed excellent charge storage properties, with a specific capacitance of 4078.7 F g− 1, indicating significant potential for energy storage. Impedance studies further demonstrated a specific power density and an Rs value of 0.8 Ω. This shows that the thus synthesized bimetallic chalcogenide has great potential in large-scale applications of the electrochemical devices.