Enhanced Electrochemical Performance of Reduced Graphene Oxide: Yb2O3 Nanocomposite for Energy Storage Applications

This study details the successful creation of a nanocomposite consisting of reduced graphene oxide (rGO) and Yb2O3 using a hydrothermal-assisted simple solution method. The research underscores the significance of this rGO: Yb2O3 composite material, which has emerged as a focal point of interest. The comprehensive analysis of the composite's structural features, as revealed by various techniques, offers vital insights into its distinctive properties. These insights hold profound implications for potential applications, especially in the field of advanced materials. The structural characterization techniques not only enhance our understanding of the composite's crystal structure, molecular vibrations, elemental composition, and surface chemistry but also highlight its potential as a superior material for various scientific and technological endeavors. Furthermore, this study emphasizes the importance of research and development efforts dedicated to rGO: Yb2O3 composite materials, particularly in the context of supercapacitor applications. Morphological examinations confirm the uniform distribution of Yb2O3 nanoparticles on both sides of the rGO sheets, with sizes below 50 nm. Notably, the nanocomposite exhibits significantly enhanced specific capacitance (1382.72 Fg(-1) at 5 mVs(-1)) compared to pristine Yb2O3 nanoparticles (753.27 Fg(-1) at 5 mVs(-1)). This improvement can be attributed to the synergistic interaction between rGO and Yb2O3, which enhances the charge storage capacity. Electrochemical characterization reveals dominant pseudo-capacitance behavior typical of batteries, making the nanocomposite a promising candidate for energy storage applications. In summary, this study illuminates the potential of graphene-based nanocomposites as high-performance energy storage materials and offers valuable insights for future research endeavors, including optimizing synthesis parameters and evaluating long-term stability. The rGO: Yb2O3 nanocomposite exhibits tremendous promise for advanced energy storage systems.