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<p>Here, hierarchical CuCo<sub>2</sub>O<sub>4</sub>@PEDOT/Mo<sub>3</sub>C<sub>2</sub> composites were fabricated on carbon cloth (CC) via a two-step synthesis strategy. The designed architecture ingeniously integrates the abundant electrochemically active sites of Cu-Co bimetallic nanoparticles with the excellent electrical conductivity of PEDOT and Mo<sub>3</sub>C<sub>2</sub>, thereby realizing a synergistic enhancement in electrochemical performance. The CuCo<sub>2</sub>O<sub>4</sub>@PEDOT/Mo<sub>3</sub>C<sub>2</sub> electrode exhibits an outstanding specific capacitance (3702 mF cm<sup>−2</sup>) and maintains a high capacitance retention (94.1%) after 10,000 charge–discharge cycles. Moreover, a flexible symmetric supercapacitor assembled with CuCo<sub>2</sub>O<sub>4</sub>@PEDOT/ Mo<sub>3</sub>C<sub>2</sub>-III electrodes delivers a high energy density of 3.6 mWh cm<sup>−3</sup> at a power density of 14.5 mW cm<sup>−3</sup>. These results confirm that the combination of controlled synthesis methods with rational material design is an effective strategy of developing high-performance hybrid energy storage systems. The CuCo<sub>2</sub>O<sub>4</sub>@PEDOT/Mo<sub>3</sub>C<sub>2</sub> architecture shows significant potential for advanced energy storage applications and efficient strategy to engineering high-performance composite electrode materials.</p>

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Controllable synthesis of hierarchical CuCo2O4@PEDOT/Mo3C2 nanocomposites as high-performance electrodes for symmetric supercapacitors

  • 期刊论文

  • 发表日期：

    2026年5月21日

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  • Yanan Zhao,
  • Yuting Luo,
  • Juan Wang,
  • Xindi Cui,
  • Yaqian Zhang,
  • Gaowu Qin,
  • Dongmao Yan

摘要

Here, hierarchical CuCo2O4@PEDOT/Mo3C2 composites were fabricated on carbon cloth (CC) via a two-step synthesis strategy. The designed architecture ingeniously integrates the abundant electrochemically active sites of Cu-Co bimetallic nanoparticles with the excellent electrical conductivity of PEDOT and Mo3C2, thereby realizing a synergistic enhancement in electrochemical performance. The CuCo2O4@PEDOT/Mo3C2 electrode exhibits an outstanding specific capacitance (3702 mF cm−2) and maintains a high capacitance retention (94.1%) after 10,000 charge–discharge cycles. Moreover, a flexible symmetric supercapacitor assembled with CuCo2O4@PEDOT/ Mo3C2-III electrodes delivers a high energy density of 3.6 mWh cm−3 at a power density of 14.5 mW cm−3. These results confirm that the combination of controlled synthesis methods with rational material design is an effective strategy of developing high-performance hybrid energy storage systems. The CuCo2O4@PEDOT/Mo3C2 architecture shows significant potential for advanced energy storage applications and efficient strategy to engineering high-performance composite electrode materials.