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<p>The development of efficient, and economically viable electrode materials with high specific capacitance is of great significance for supercapacitor applications. Conducting polymers and transitioning metal oxides are promising materials but exhibit limitations when used separately. We report a novel electrode (P@F−S) consisting of polyaniline (P) matrix attached to α-Fe<sub>2</sub>O<sub>3</sub> (F) with SnO<sub>2</sub> (S) to achieve superior electrochemical performance. The materials were characterized using FTIR, UV–Vis, XRD, XPS, BET, and TGA. Moreover, their electrochemical behaviors were evaluated through cyclic voltammetry (CV) and galvanostatic charge/discharge (GCD) techniques. The P@F−S electrode exhibited superior specific capacitance values of 621.7 and 557.6&#xa0;F.g<sup>− 1</sup> at 0.1 and 10&#xa0;A.g<sup>− 1</sup> current densities using a three-electrode system, respectively, in contrast to 522.8 and 448.8&#xa0;F.g<sup>− 1</sup> for F−S. More notably, the cycling stability of P@F−S can still reach up to 93.22% after 10,000 cycles and has a high energy density of 58.41 Wh.kg<sup>− 1</sup> at a power density of 269.4&#xa0;W.kg<sup>− 1</sup>, which is superior to F−S electrode. This demonstrates that P incorporation strategy is an effective way to enhance the electrochemical performance of F−S, offering a valuable insight for the design and development of high-performance SCs.</p>

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Tailoring the Electrochemical Performance of PAni-Supported α-Fe2O3 Decorated SnO2 Composite: An Electrode Material for the High-Performance Supercapacitor Application

  • 期刊论文

  • 发表日期：

    2026年6月23日

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  • Mounya Zenasni,
  • Ignacio Carnerero,
  • Mohamed Kiari,
  • Imane Moulefera,
  • Lilia Sabantina,
  • Abdelghani Benyoucef

摘要

The development of efficient, and economically viable electrode materials with high specific capacitance is of great significance for supercapacitor applications. Conducting polymers and transitioning metal oxides are promising materials but exhibit limitations when used separately. We report a novel electrode (P@F−S) consisting of polyaniline (P) matrix attached to α-Fe2O3 (F) with SnO2 (S) to achieve superior electrochemical performance. The materials were characterized using FTIR, UV–Vis, XRD, XPS, BET, and TGA. Moreover, their electrochemical behaviors were evaluated through cyclic voltammetry (CV) and galvanostatic charge/discharge (GCD) techniques. The P@F−S electrode exhibited superior specific capacitance values of 621.7 and 557.6 F.g− 1 at 0.1 and 10 A.g− 1 current densities using a three-electrode system, respectively, in contrast to 522.8 and 448.8 F.g− 1 for F−S. More notably, the cycling stability of P@F−S can still reach up to 93.22% after 10,000 cycles and has a high energy density of 58.41 Wh.kg− 1 at a power density of 269.4 W.kg− 1, which is superior to F−S electrode. This demonstrates that P incorporation strategy is an effective way to enhance the electrochemical performance of F−S, offering a valuable insight for the design and development of high-performance SCs.