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<p>The development of advanced hybrid nanostructures is essential for improving the electrochemical performance of next-generation energy storage devices. In this study, we report the fabrication of a hierarchically organized Co-MOF@WS<sub>2</sub> composite grown on nickel foam, designed for high-performance supercapacitor applications. The present study presents a hierarchically organized Co-MOF@WS<sub>2</sub> supported on nickel foam as an electrode material with exceptional performance for supercapacitors. This study demonstrates that the Co-MOF@WS<sub>2</sub> material achieves an exceptionally high specific capacitance of 2901 C/g at 2 A/g in a 1&#xa0;M KOH solution, surpassing the capacitances of previously documented MOF-based materials. Co-MOF@WS<sub>2</sub> is employed as the positive electrode and activated carbon (AC) serves as the negative electrode, an asymmetric supercapacitor (ASC) device attains a high energy density of 80.1 Wh/kg at a power density of 1008 W/kg, with a capacitance retention of 83.6% after 12,000 cycles.</p>

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High-performance Co-MOF@WS₂ electrode for enhanced supercapacitor efficiency and hydrogen evolution reaction

  • 期刊论文

  • 发表日期：

    2025年6月6日

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  • Qaisar Mehmood Ali,
  • Rizwan Ahmed Malik,
  • M. W. Iqbal,
  • Hussein Alrobei

摘要

The development of advanced hybrid nanostructures is essential for improving the electrochemical performance of next-generation energy storage devices. In this study, we report the fabrication of a hierarchically organized Co-MOF@WS2 composite grown on nickel foam, designed for high-performance supercapacitor applications. The present study presents a hierarchically organized Co-MOF@WS2 supported on nickel foam as an electrode material with exceptional performance for supercapacitors. This study demonstrates that the Co-MOF@WS2 material achieves an exceptionally high specific capacitance of 2901 C/g at 2 A/g in a 1 M KOH solution, surpassing the capacitances of previously documented MOF-based materials. Co-MOF@WS2 is employed as the positive electrode and activated carbon (AC) serves as the negative electrode, an asymmetric supercapacitor (ASC) device attains a high energy density of 80.1 Wh/kg at a power density of 1008 W/kg, with a capacitance retention of 83.6% after 12,000 cycles.