Synthesis and size control of copper nanoparticles

In this paper, a method for synthesis of copper nanoparticles stabilized with polyvinylpirolidone in aqueous solution under nitrogen gas environment is described. Reaction parameters were controlled to attain the sharp particle size distribution with the smallest average particle size in this method. The best conditions were reducing agent to precursor concentration ratio equal with 4 and temperature of 60 oC. Also oxidation resistance of copper nano particles was investigated. Results showed that after 10 minutes, dispersed nanoparticlse in the solution were oxidized and redissolved in water after contact with air.

کلیدواژه ها:

Nano powder ، copper ، precipitation ، size distribution