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<p>This study successfully synthesised pristine Cu<sub>2</sub>O, exhibiting a carnation flower-like shape, and FeS nanoplates utilizing a hydrothermal technique. The integration of FeS into Cu<sub>2</sub>O matrix markedly improves electrical conductivity of Cu<sub>2</sub>O/FeS composite. Electrochemical performance of Cu<sub>2</sub>O/FeS composite significantly exceeds that of pure Cu<sub>2</sub>O. The specific values of capacitance for pristine Cu<sub>2</sub>O and FeS electrodes were determined to 100 Fg<sup>−1</sup> and 92 Fg<sup>−1</sup>, at current density of 1 Ag<sup>−1</sup>. Cu<sub>2</sub>O/FeS composite demonstrated a notable specific capacitance of 302 Fg<sup>−1</sup> and enhanced cycling retention, maintaining 90% of original capacitance subsequent to8000 galvanostatic charge–discharge cycles at current density of 4Ag<sup>−1</sup>. Results demonstrate that Cu<sub>2</sub>O/FeS composite is an exceptionally efficient electro-active material for supercapacitor applications, providing dependable energy storage solutions and improved performance. Cu<sub>2</sub>O can participate in redox reactions, hence contributing to pseudocapacitance.</p> Graphical Abstract <p></p>

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Heterostructure Composites Based on Copper Oxide/Ferric Sulfide (Cu2O/FeS) Optimization Studies to Create High-Performance Supercapacitor Electrodes

  • 期刊论文

  • 发表日期：

    2025年7月14日

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  • Dost Muhammad,
  • Kaseb D. Alanazi,
  • Syed Hatim Shah,
  • Nisar Ali,
  • Mohammad M. Al-Hinaai,
  • Rayya Ahmed Al Balushi,
  • Thuraya Al-Harthy,
  • Basmah H. Alshammari,
  • Tahani Y. A. Alanazi,
  • Odeh A. O. Alshammari,
  • Reda Abdel-Hameed

摘要

This study successfully synthesised pristine Cu2O, exhibiting a carnation flower-like shape, and FeS nanoplates utilizing a hydrothermal technique. The integration of FeS into Cu2O matrix markedly improves electrical conductivity of Cu2O/FeS composite. Electrochemical performance of Cu2O/FeS composite significantly exceeds that of pure Cu2O. The specific values of capacitance for pristine Cu2O and FeS electrodes were determined to 100 Fg−1 and 92 Fg−1, at current density of 1 Ag−1. Cu2O/FeS composite demonstrated a notable specific capacitance of 302 Fg−1 and enhanced cycling retention, maintaining 90% of original capacitance subsequent to8000 galvanostatic charge–discharge cycles at current density of 4Ag−1. Results demonstrate that Cu2O/FeS composite is an exceptionally efficient electro-active material for supercapacitor applications, providing dependable energy storage solutions and improved performance. Cu2O can participate in redox reactions, hence contributing to pseudocapacitance.

Graphical Abstract