2013•AIP conference proceedingsRequires access

Single phase synthesis of highly stable copper nanoparticles

Chandni, O. P. Pandey, Bhupendra Chudasama

Abstract

In this article, we report the effect of different reducing agents on the formation of crystallographic phase of copper nanoparticles and its stability in air. Single phase copper nanoparticles are formed by the chemical reduction of Cu(OAc)2 in the presence of weak (oleylamine) and strong (PVP, NaBH4) reducing agents. When Cu(OAc)2 is reduced with weak reducing agent oleylamine, copper nanoparticles are reoxidized to CuO and Cu2O. To prevent this, a strong reducing and capping agent (NaBH4+PVP) is essential for the formation of stable copper nanoparticles. The phase formation is studied by XRD and UV-visible spectroscopy.

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Key concepts: Oleylamine, Reducing agent, Copper, Nanoparticle, Phase (matter), Materials science, Chemical engineering, Chemistry