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<p>Incorporating multi-walled carbon nanotubes (MWCNTs) into CuMoO<sub>4</sub> is a highly effective strategy to address the poor conductivity and limited ion-accessible surface area typically associated with metal molybdates. The conductive MWCNT framework enhances electron transport, exposes more active Cu/Mo redox sites, and stabilizes the CuMoO<sub>4</sub> nanosheets for efficient charge storage. In this work, a CuMoO<sub>4</sub>/AC composite was prepared by hydrothermal–annealing route, forming a porous hybrid network with improved electrochemical kinetics. The optimally designed electrode exhibits a high specific capacitance of 1006&#xa0;F g<sup>−1</sup> at 1&#xa0;A g<sup>−1</sup>, exceptional rate performance, and stable pseudocapacitive behaviour. An asymmetric device fabricated with CuMoO<sub>4</sub>/MWCNT and AC as the positive and negative electrode shows strong cycling performance. The device delivers a high energy density of 48.2 Wh kg<sup>−1</sup> at a power density of 800&#xa0;W kg<sup>−1</sup>, highlighting the excellent energy–power characteristics of the material. These results demonstrate that CuMoO<sub>4</sub>/MWCNT composites are viable materials for cutting-edge high-power, high-energy supercapacitor applications.</p>

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MWCNT-Incorporated CuMoO4 Hybrid Electrode for Asymmetric Supercapacitors Applications

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • N. Jafarulla,
  • Shanmugaiah Mathan Kumar,
  • N. Vijayakumar

摘要

Incorporating multi-walled carbon nanotubes (MWCNTs) into CuMoO4 is a highly effective strategy to address the poor conductivity and limited ion-accessible surface area typically associated with metal molybdates. The conductive MWCNT framework enhances electron transport, exposes more active Cu/Mo redox sites, and stabilizes the CuMoO4 nanosheets for efficient charge storage. In this work, a CuMoO4/AC composite was prepared by hydrothermal–annealing route, forming a porous hybrid network with improved electrochemical kinetics. The optimally designed electrode exhibits a high specific capacitance of 1006 F g−1 at 1 A g−1, exceptional rate performance, and stable pseudocapacitive behaviour. An asymmetric device fabricated with CuMoO4/MWCNT and AC as the positive and negative electrode shows strong cycling performance. The device delivers a high energy density of 48.2 Wh kg−1 at a power density of 800 W kg−1, highlighting the excellent energy–power characteristics of the material. These results demonstrate that CuMoO4/MWCNT composites are viable materials for cutting-edge high-power, high-energy supercapacitor applications.