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<p>This study presents the preparation and characterization of CuO-ZnO/TiO<sub>2</sub> ternary nanocomposites attached with reduced graphene oxide (rGO) and tested for potential energy storage applications. A straightforward hydrothermal process is used to create CuO-ZnO/TiO<sub>2</sub> nanocomposites, followed by the incorporation of rGO to augment the electrochemical performance. Raman and FTIR spectroscopy are employed to investigate the molecular vibration and absorption features of the nanocomposites. The XRD patterns ascertained the formation of the rGO-wrapped ternary metal oxide nanocomposites. HRSEM and HRTEM analyses confirmed the successful incorporation of CuO-ZnO/TiO<sub>2</sub> onto the rGO sheets. The electrochemical measurements performed with the cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) confirmed the high specific resistance and outstanding cyclic stability and enhanced rate capability of the CuO-ZnO/rGO-TiO<sub>2</sub> nanocomposites.</p>

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Investigation on the role of rGO anchoring in hydrothermally synthesized metal oxide (CuO-ZnO/TiO2) nanocomposites composed electrodes toward improved energy storage applications

  • 期刊论文

  • 发表日期：

    2025年12月18日

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  • S. Mary Margaret,
  • S. Joseph Manoj Babu,
  • A. R. Baby Suganthi,
  • P. Sagayaraj,
  • S. Selvakumar,
  • R. Josephine Usha

摘要

This study presents the preparation and characterization of CuO-ZnO/TiO2 ternary nanocomposites attached with reduced graphene oxide (rGO) and tested for potential energy storage applications. A straightforward hydrothermal process is used to create CuO-ZnO/TiO2 nanocomposites, followed by the incorporation of rGO to augment the electrochemical performance. Raman and FTIR spectroscopy are employed to investigate the molecular vibration and absorption features of the nanocomposites. The XRD patterns ascertained the formation of the rGO-wrapped ternary metal oxide nanocomposites. HRSEM and HRTEM analyses confirmed the successful incorporation of CuO-ZnO/TiO2 onto the rGO sheets. The electrochemical measurements performed with the cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) confirmed the high specific resistance and outstanding cyclic stability and enhanced rate capability of the CuO-ZnO/rGO-TiO2 nanocomposites.