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<p>This study presents a comprehensive revision of the synthesis and electrochemical characterization of spherical MoS<sub>2</sub>–polyaniline (PANI) composites designed for high-performance supercapacitor electrodes. Our novel hydrothermal synthesis method yields uniformly spherical MoS<sub>2</sub>–PANI composites exhibiting enhanced surface area and electrical conductivity. Electrochemical evaluations, including cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS), demonstrate significant improvements in specific capacitance, rate capability, and cycling stability compared to pure MoS<sub>2</sub> and pristine PANI. Detailed X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses confirm the successful composite formation and uniform morphology. Electrochemical tests, including CV, GCD, and EIS, revealed the composite electrode exhibited greater capacity compared to others at a scan rate of 10&#xa0;mV/s. GCD analysis at 1 A/g current density found capacities of 586.6 F/g for molybdenum disulfide, 382.2 F/g for polyaniline, and 808.8 F/g for the composite electrode. Additionally, the composite displayed lower charge transfer resistance, indicating improved conductivity, and maintained 87% of its initial capacity after 5000 cycles. These findings suggest that the MoS<sub>2</sub>/polyaniline composite is a promising candidate for electrochemical supercapacitors.</p>

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Spherical MoS₂–polyaniline composite for high-performance supercapacitors

  • 期刊论文

  • 发表日期：

    2025年8月30日

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  • Reza Mohammad Ali Nejad,
  • Majid Seifi,
  • Sadegh Azizi

摘要

This study presents a comprehensive revision of the synthesis and electrochemical characterization of spherical MoS2–polyaniline (PANI) composites designed for high-performance supercapacitor electrodes. Our novel hydrothermal synthesis method yields uniformly spherical MoS2–PANI composites exhibiting enhanced surface area and electrical conductivity. Electrochemical evaluations, including cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS), demonstrate significant improvements in specific capacitance, rate capability, and cycling stability compared to pure MoS2 and pristine PANI. Detailed X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses confirm the successful composite formation and uniform morphology. Electrochemical tests, including CV, GCD, and EIS, revealed the composite electrode exhibited greater capacity compared to others at a scan rate of 10 mV/s. GCD analysis at 1 A/g current density found capacities of 586.6 F/g for molybdenum disulfide, 382.2 F/g for polyaniline, and 808.8 F/g for the composite electrode. Additionally, the composite displayed lower charge transfer resistance, indicating improved conductivity, and maintained 87% of its initial capacity after 5000 cycles. These findings suggest that the MoS2/polyaniline composite is a promising candidate for electrochemical supercapacitors.