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<p>In this study, the electrochemical performance of the composite material HKUST-1/CoMn<sub>2</sub>O<sub>4</sub>@ReSe<sub>2</sub> is investigated for advanced energy storage and renewable energy sources applications. This composite demonstrated an optimal balance between capacitive and battery-type energy storage, which allows for rapid charge–discharge capabilities. Leveraging the unique structure of HKUST-1 combined with CoMn<sub>2</sub>O<sub>4</sub> doped with ReSe<sub>2</sub> enhances its energy storage capabilities. Cobalt Manganite (CoMn<sub>2</sub>O<sub>4</sub>) has notable high reversible capacities and improved electron transport properties. Similarly, ReSe<sub>2</sub> keeps unique structural and electrical properties showing excellent catalytic efficiency. ReSe<sub>2</sub> facilitated synergistic interactions between cobalt and manganese, transferring electrons from the highly electrical properties of ReSe<sub>2</sub> to Co<sup>2</sup> + and Mn<sup>3</sup> + . Electrocatalytic hydrogen evolution reaction (HER) over the composite material HKUST-1/CoMn<sub>2</sub>O<sub>4</sub>@ReSe<sub>2</sub> has attracted considerable attention. The BET of the HKUST-1/CoMn<sub>2</sub>O<sub>4</sub>@ReSe<sub>2</sub> composite also displays a specific surface area (SSA) of 143.61 m<sup>2</sup>/g. The composite material achieves a high specific capacity of 1496 C/g at 1 A/g, with a notable high energy density of 77.7 Wh/kg and power densities of 800 W/kg, surpassing those of traditional materials. After 12,000 cycles, the charging and discharging times decrease to 92.5% and 85.2%, respectively. Stability tests confirm the robustness of HKUST-1/CoMn<sub>2</sub>O<sub>4</sub>@ReSe<sub>2</sub>, as shown by the consistent performance before and after extended cycling, with minimal loss in capacity. This indicates the material’s durability and long-term stability, essential for practical energy storage applications.</p>

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Optimizing electrochemical performance of HKUST-1/CoMn2O4 by integration of ReSe2: toward next-generation supercapacitors and hydrogen production

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • M. Alharbi,
  • Muhammad Waqas Iqbal,
  • Yas Al-Hadeethi,
  • Ehtisham Umar

摘要

In this study, the electrochemical performance of the composite material HKUST-1/CoMn2O4@ReSe2 is investigated for advanced energy storage and renewable energy sources applications. This composite demonstrated an optimal balance between capacitive and battery-type energy storage, which allows for rapid charge–discharge capabilities. Leveraging the unique structure of HKUST-1 combined with CoMn2O4 doped with ReSe2 enhances its energy storage capabilities. Cobalt Manganite (CoMn2O4) has notable high reversible capacities and improved electron transport properties. Similarly, ReSe2 keeps unique structural and electrical properties showing excellent catalytic efficiency. ReSe2 facilitated synergistic interactions between cobalt and manganese, transferring electrons from the highly electrical properties of ReSe2 to Co2 + and Mn3 + . Electrocatalytic hydrogen evolution reaction (HER) over the composite material HKUST-1/CoMn2O4@ReSe2 has attracted considerable attention. The BET of the HKUST-1/CoMn2O4@ReSe2 composite also displays a specific surface area (SSA) of 143.61 m2/g. The composite material achieves a high specific capacity of 1496 C/g at 1 A/g, with a notable high energy density of 77.7 Wh/kg and power densities of 800 W/kg, surpassing those of traditional materials. After 12,000 cycles, the charging and discharging times decrease to 92.5% and 85.2%, respectively. Stability tests confirm the robustness of HKUST-1/CoMn2O4@ReSe2, as shown by the consistent performance before and after extended cycling, with minimal loss in capacity. This indicates the material’s durability and long-term stability, essential for practical energy storage applications.