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<p>Supercapacitor electrode design continues to face significant challenges in achieving high specific capacitance while preserving structural stability, mainly because of the intrinsic constraints of conducting polymers and metal oxides. Here, we report an innovative polyaniline-co-melamine/reduced graphene oxide/ZnO (PMrGZ) nanohybrid that was developed using a carefully regulated in situ polymerization technique to guarantee consistent dispersion and robust interfacial interaction between all constituents. The synergistic copolymer–rGO–ZnO integration in the suggested architecture allows for high specific capacitance, with each component providing complementary functions. The integration of rGO enhances electrical conductivity and promotes swift electron transit, whereas ZnO nanoparticles contribute supplementary pseudocapacitive sites. The melamine-based copolymer network concurrently enhances structural integrity and cycling stability. This synergistic design enhances ion diffusion by increasing the electroactive surface area and optimizing shape. The optimized PMrG<sub>0.01</sub>Z<sub>0.03</sub>–1 electrode demonstrates a high specific capacitance of 525 F g<sup>−1</sup> at a scan rate of 10&#xa0;mV&#xa0;s<sup>−1</sup>, coupled with commendable cycling stability, maintaining 93.3% capacitance after 5000 cycles. It furthermore provides an energy density of around 13.09 Wh kg<sup>−1</sup> at a power density of around 250 W kg<sup>−1</sup>.The results indicate that copolymer-engineered hybridization is a viable method for improving charge storage performance, presenting a possible path for the advancement of sophisticated and resilient supercapacitor electrodes.</p>

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Polyaniline-co-melamine copolymer-based nanocomposite reinforced with rGO sheets and ZnO nanoparticles for high-performance supercapacitor applications

  • 期刊论文

  • 发表日期：

    2026年7月18日

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  • Esha Ghazanfar,
  • Naseem Iqbal,
  • Sadullah Mir,
  • Ishtiaq Ahmed,
  • Nasser S. Awwad,
  • Hala A. Ibrahium

摘要

Supercapacitor electrode design continues to face significant challenges in achieving high specific capacitance while preserving structural stability, mainly because of the intrinsic constraints of conducting polymers and metal oxides. Here, we report an innovative polyaniline-co-melamine/reduced graphene oxide/ZnO (PMrGZ) nanohybrid that was developed using a carefully regulated in situ polymerization technique to guarantee consistent dispersion and robust interfacial interaction between all constituents. The synergistic copolymer–rGO–ZnO integration in the suggested architecture allows for high specific capacitance, with each component providing complementary functions. The integration of rGO enhances electrical conductivity and promotes swift electron transit, whereas ZnO nanoparticles contribute supplementary pseudocapacitive sites. The melamine-based copolymer network concurrently enhances structural integrity and cycling stability. This synergistic design enhances ion diffusion by increasing the electroactive surface area and optimizing shape. The optimized PMrG0.01Z0.03–1 electrode demonstrates a high specific capacitance of 525 F g−1 at a scan rate of 10 mV s−1, coupled with commendable cycling stability, maintaining 93.3% capacitance after 5000 cycles. It furthermore provides an energy density of around 13.09 Wh kg−1 at a power density of around 250 W kg−1.The results indicate that copolymer-engineered hybridization is a viable method for improving charge storage performance, presenting a possible path for the advancement of sophisticated and resilient supercapacitor electrodes.