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<p>The escalating global energy demand necessitates the development of high-performance energy storage systems, particularly for portable and wearable electronic devices. In this study, molybdenum disulfide (MoS<sub>2</sub>) was synthesized via a hydrothermal method, while polyaniline (PANI) was prepared through chemical oxidative polymerization of aniline. A composite material was subsequently fabricated by coating MoS<sub>2</sub> with PANI using in situ chemical oxidative polymerization. The structural and morphological features of the synthesized materials were systematically characterized using various techniques. Field emission scanning electron microscopy (FESEM) revealed that MoS<sub>2</sub> exhibited a microspherical architecture with rose-petal-like layered morphology. The electrochemical performance of the materials was evaluated in a conventional three-electrode configuration to investigate their supercapacitive properties. The PANI/MoS<sub>2</sub> composite electrode delivered a high specific capacitance of 564 F/g at a scan rate of 5&#xa0;mV/s and 327 F/g at a current density of 0.5 A/g. Furthermore, the composite retained approximately 70% of its initial capacitance after 2500 charge–discharge cycles, indicating good cycling stability. These results demonstrate a strong synergistic interaction between PANI and MoS<sub>2</sub>, contributing to the enhanced electrochemical performance of the composite, making it a promising candidate for next-generation supercapacitor applications.</p>

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Synthesis of polyaniline-coated MoS2 nanocomposite as a high-performance electrode material for supercapacitor application

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Sarvesh Kumar,
  • Anchal Kishore Singh,
  • Anand Kumar Vishwakarma,
  • Bhim Sen Yadav,
  • Ritu Agrahari,
  • Naresh Kumar

摘要

The escalating global energy demand necessitates the development of high-performance energy storage systems, particularly for portable and wearable electronic devices. In this study, molybdenum disulfide (MoS2) was synthesized via a hydrothermal method, while polyaniline (PANI) was prepared through chemical oxidative polymerization of aniline. A composite material was subsequently fabricated by coating MoS2 with PANI using in situ chemical oxidative polymerization. The structural and morphological features of the synthesized materials were systematically characterized using various techniques. Field emission scanning electron microscopy (FESEM) revealed that MoS2 exhibited a microspherical architecture with rose-petal-like layered morphology. The electrochemical performance of the materials was evaluated in a conventional three-electrode configuration to investigate their supercapacitive properties. The PANI/MoS2 composite electrode delivered a high specific capacitance of 564 F/g at a scan rate of 5 mV/s and 327 F/g at a current density of 0.5 A/g. Furthermore, the composite retained approximately 70% of its initial capacitance after 2500 charge–discharge cycles, indicating good cycling stability. These results demonstrate a strong synergistic interaction between PANI and MoS2, contributing to the enhanced electrochemical performance of the composite, making it a promising candidate for next-generation supercapacitor applications.