Synthesis of Copper Oxide (CuO) Nanofillers for Green Energy Applications

ABSTRACT The next improvements emphasize the crucial role that nanofillers play in stimulating innovation in next‐generation electrochemical technologies in order to maximize their interactions within matrices and their usability in electrochemical devices. The current study focuses on a novel synthesis of copper oxide (CuO) employing a suitable reducing agent to address difficulties like as aggregation, specific size, and performance in electrochemical systems. As results, XRD provides important information about interlayer spacing, lattice parameters, crystallinity, and crystallite size, which was determined to be 34.50 nm. FTIR is widely used to validate the creation of CuO nanofillers during synthesis, which show distinct absorption bands associated with Cu─O stretching vibrations in the 400–600 cm −1 range. The bandgap energy was determined 3.24 eV using UV–vis analysis. The electrochemically active surface area, capacitance, and redox behavior of nanofillers are also explained using cyclic voltammetry (CV), which is essential for energy storage device applications.