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<p>The development of yarn-shaped supercapacitors (YSCs) with high electrochemical performance and large mechanical property is crucial for portable, self-powered electronics. In this work, rGO/MXene/polyaniline (PANI) decorated cotton (GMPC) yarn was fabricated via dip-coating method followed by chemical reduction process. Benefiting from the intrinsic conductivity of active components and stable heterogeneous interface interaction via hydrogen bond, the GMPC yarn forms a continuous pathway causing fast electron transfer. Moreover, intercalating PANI between two-dimensional architectures can not only provide abundant active sites for ion adsorption, but also impede the self-restacking effect of rGO and MXene, leading to a porous structure and good electrolyte diffusion kinetics. Besides, the cotton yarn establishes a robust and flexible skeleton, endowing excellent mechanical performance. As a result, the designed GMPC yarn presents high capacitance of 406.7&#xa0;F g<sup>− 1</sup> at current density of 1&#xa0;A g<sup>− 1</sup>, outstanding rate performance (138.9&#xa0;F g<sup>− 1</sup> at 10&#xa0;A g<sup>− 1</sup>) and excellent long-term cycling property (87.8% capacitance retention after 5000 times cycles). More importantly, the assembled symmetric YSCs also illustrates favorable energy density of 2.25 Wh kg<sup>− 1</sup> and good electrochemical performance after various deformations, demonstrating the potential for advanced energy storage applications.</p>

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Robust reduced graphene oxide/polyaniline/MXene decorated cotton yarn for flexible one-dimensional supercapacitors

  • 期刊论文

  • 发表日期：

    2026年3月6日

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  • Yusen Wang,
  • Kangxin Qi,
  • Diwei Gu,
  • Qi Ao,
  • Peng Wang,
  • Hongjun Wang,
  • Mengjie Zhang,
  • Junsong Fu,
  • Nan Li,
  • Qingquan Xue,
  • Ke Liu,
  • Yang Zhang

摘要

The development of yarn-shaped supercapacitors (YSCs) with high electrochemical performance and large mechanical property is crucial for portable, self-powered electronics. In this work, rGO/MXene/polyaniline (PANI) decorated cotton (GMPC) yarn was fabricated via dip-coating method followed by chemical reduction process. Benefiting from the intrinsic conductivity of active components and stable heterogeneous interface interaction via hydrogen bond, the GMPC yarn forms a continuous pathway causing fast electron transfer. Moreover, intercalating PANI between two-dimensional architectures can not only provide abundant active sites for ion adsorption, but also impede the self-restacking effect of rGO and MXene, leading to a porous structure and good electrolyte diffusion kinetics. Besides, the cotton yarn establishes a robust and flexible skeleton, endowing excellent mechanical performance. As a result, the designed GMPC yarn presents high capacitance of 406.7 F g− 1 at current density of 1 A g− 1, outstanding rate performance (138.9 F g− 1 at 10 A g− 1) and excellent long-term cycling property (87.8% capacitance retention after 5000 times cycles). More importantly, the assembled symmetric YSCs also illustrates favorable energy density of 2.25 Wh kg− 1 and good electrochemical performance after various deformations, demonstrating the potential for advanced energy storage applications.