A Brief Review on Synthesis and Characterization of Copper Oxide Nanoparticles and its Applications

In this paper, brief review for preparations of copper oxide nanoparticles by the different route are described. Since last few years, synthesis of nanoparticles has been attracted considerable attention. The metal oxides are important technology materials used as catalysts in chemical industries and in electronic and photonic devices. Due to the applications in advanced technologies, researchers have focused more on synthesis of CuO nanoparticles. Copper oxide nanoparticles appear as a brownish-black powder. They can be reduced to metallic copper when exposed to hydrogen or carbon monoxide under high temperature. Copper oxide nanoparticles are used in wide range of applications such as catalysis, gas sensors, magnetic storage media, batteries, solar energy transformer, semi conductors and field emission. CuO, as a P-type semiconductor exhibiting narrow band gap, have attracted great attention due to its potential application in nano devices such as electronic, optoelectronic and sensing. It has been widely used as powerful heterogeneous catalyst because of its high activity and selectivity in oxidation and reduction reactions.