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<p>A novel porous spherical nanocomposite of poly(2-mercaptoaniline)/CuS–CuO (P2MA/CuS–CuO PS-composite) was successfully synthesized via a one-step process. Scanning electron microscopy (SEM) revealed well-defined spherical particles of ~ 200&#xa0;nm, featuring uniform porosity with pore sizes around 10&#xa0;nm. X-ray diffraction analysis indicated a crystallite size of approximately 10&#xa0;nm, with sharp and distinct peaks confirming a highly crystalline structure. The electrochemical behavior of the composite was investigated through a three-electrode strcuture. The device exhibited high specific capacitance (C<sub>S</sub>) values of 260, 105, and 52&#xa0;F/g observed at current densities of 0.4, 0.6, and 1.0&#xa0;A/g, correspondingly. These results corresponded energy density values reached 21.0, 8.0, and 4.5&#xa0;W·h/kg. The device showed an excellent cycling stability related to its ability to estimate 99.5% capacitance with a great cycles of 1000 cycles. Additionally, a low solution resistance (Rs) of 6.1 Ω further supports its high conductivity and performance. So, these results demonstrate that the P2MA/CuS–CuO PS-composite is an excellent candidate for fabricating high-performance pseudo-supercapacitors electrode. Its combination of high energy density, stability, and cost-effective synthesis makes it a solid contender for industrial-scale energy storage applications.</p>

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A promising Poly(2-mercaptoaniline)/Copper-Based porous nanocomposite for advanced supercapacitor electrode design

  • 期刊论文

  • 发表日期：

    2026年2月2日

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  • Saba A. Aladeemy,
  • Farid Fadhillah,
  • Karim Kriaa,
  • Abdulaziz I. Alromaeh,
  • Osama Farid,
  • Ahmed A. Ibrahim,
  • Mohamed Rabia

摘要

A novel porous spherical nanocomposite of poly(2-mercaptoaniline)/CuS–CuO (P2MA/CuS–CuO PS-composite) was successfully synthesized via a one-step process. Scanning electron microscopy (SEM) revealed well-defined spherical particles of ~ 200 nm, featuring uniform porosity with pore sizes around 10 nm. X-ray diffraction analysis indicated a crystallite size of approximately 10 nm, with sharp and distinct peaks confirming a highly crystalline structure. The electrochemical behavior of the composite was investigated through a three-electrode strcuture. The device exhibited high specific capacitance (CS) values of 260, 105, and 52 F/g observed at current densities of 0.4, 0.6, and 1.0 A/g, correspondingly. These results corresponded energy density values reached 21.0, 8.0, and 4.5 W·h/kg. The device showed an excellent cycling stability related to its ability to estimate 99.5% capacitance with a great cycles of 1000 cycles. Additionally, a low solution resistance (Rs) of 6.1 Ω further supports its high conductivity and performance. So, these results demonstrate that the P2MA/CuS–CuO PS-composite is an excellent candidate for fabricating high-performance pseudo-supercapacitors electrode. Its combination of high energy density, stability, and cost-effective synthesis makes it a solid contender for industrial-scale energy storage applications.