Abstract

• This paper focused on the preparation of copper (Cu) nanoparticles from copper nitrate as metal precursor by Polyol reduction. Ethylene glycol, Glycerol and Glycerine were used as a reducing agent and stabilizer. The copper particles formed were identified by EDXRF, XRD and SEM. The effect of solvent showed that small spherical copper nanoparticles and the good dispersion of nanoparticles are found by using solvent either glycerol or glycerine. EDXRF spectrum also informed that there was no other metal impurity in the formation of Cu NPs. From XRD pattern, the average crystallize size of Cu NPs was found to be 38 nm as each particle observed from SEM is not a single crystallite of Cu but the agglomerates of many single crystallites. The aggregation of nanoparticles caused the inhomogeneous size distribution.