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<p>In this study, the synthesis and electrochemical performance of a zinc oxide/copper oxide/graphitic carbon nitride ZnO/CuO/g-C₃N₄ composite for energy storage applications were investigated. The synthesis was carried out using a multi-step process, where ZnO/CuO was prepared via co-precipitation, and g-C₃N₄ was synthesized through thermal polymerization. Fourier-transform infrared spectroscopy (FTIR) revealed the presence of metal-oxide bonds and carbon-nitrogen functional groups, verifying the successful integration of g-C₃N₄ into the ZnO/CuO system. UV-visible absorption studies exhibited a red shift and a broader absorption band in the ZnO/CuO/g-C₃N₄ composite, indicating enhanced optical properties, which are favorable for energy storage applications. Furthermore, cyclic voltammetry (CV) measurements demonstrated superior capacitance and excellent rate capability, achieving a specific capacitance of 253 F/g at a scan rate of 10 mV/s. The combined structural, optical, and electrochemical properties of the ZnO/CuO/g-C₃N₄ composite underscore its potential as an advanced material for energy storage applications.</p> Graphical Abstract <p></p>

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Exploring the ZnO/CuO/g-C3N4 nanocomposite for superior energy storage capabilities

  • 期刊论文

  • 发表日期：

    2025年1月26日

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  • C. Thirupathi,
  • J. Bosco Franklin,
  • J. Mohemed Ali,
  • M. Mercy Jenifer,
  • M. Sangamithirai,
  • S. John Sundaram,
  • Mir Waqas Alam,
  • Pitcheri Rosaiah

摘要

In this study, the synthesis and electrochemical performance of a zinc oxide/copper oxide/graphitic carbon nitride ZnO/CuO/g-C₃N₄ composite for energy storage applications were investigated. The synthesis was carried out using a multi-step process, where ZnO/CuO was prepared via co-precipitation, and g-C₃N₄ was synthesized through thermal polymerization. Fourier-transform infrared spectroscopy (FTIR) revealed the presence of metal-oxide bonds and carbon-nitrogen functional groups, verifying the successful integration of g-C₃N₄ into the ZnO/CuO system. UV-visible absorption studies exhibited a red shift and a broader absorption band in the ZnO/CuO/g-C₃N₄ composite, indicating enhanced optical properties, which are favorable for energy storage applications. Furthermore, cyclic voltammetry (CV) measurements demonstrated superior capacitance and excellent rate capability, achieving a specific capacitance of 253 F/g at a scan rate of 10 mV/s. The combined structural, optical, and electrochemical properties of the ZnO/CuO/g-C₃N₄ composite underscore its potential as an advanced material for energy storage applications.

Graphical Abstract