Influence of metal precursors on the structure, morphology, and performance of CuO nanorods gas-sensing

Abstract CuO was synthesized using various metal precursors as Cu 2+ sources via a combined coprecipitation and microwave-assisted hydrothermal method, and its gas-sensing performance was systematically evaluated in relation to its structural, electronic, and morphological properties. This study systematically investigates the role of precursor chemistry as a key parameter in controlling the nucleation and growth of CuO nanostructures under identical synthesis conditions. X-ray diffraction (XRD)