Preparation of copper nanoparticles with an organic coating by a pulsed wire discharge method

다국어 초록 (Multilingual Abstract)

In the pulsed wire discharge method, a coating technique to prepare metal nanoparticles covered with organic matter has been
investigated. Copper nanoparticles covered with organic matter have been successfully prepared by evaporation of a copper
wire in an oleic acid vapor/mist. The thickness of the coating layer was a few nanometres. The median diameter of the powder
was 25 nm, and became 10 nm smaller than that without the coating because of the inhibition of particle growth by the
formation of the coating. From phase identification by transmission electron microscopy and X-ray diffraction analysis, it was
found that the copper nanoparticles have been passivated and have not been oxidized in over 2 months.

다국어 초록 (Multilingual Abstract)

In the pulsed wire discharge method, a coating technique to prepare metal nanoparticles covered with organic matter has been investigated. Copper nanoparticles covered with organic matter have been successfully prepared by evaporation of a copper wire in an oleic acid vapor/mist. The thickness of the coating layer was a few nanometres. The median diameter of the powder was 25 nm, and became 10 nm smaller than that without the coating because of the inhibition of particle growth by the formation of the coating. From phase identification by transmission electron microscopy and X-ray diffraction analysis, it was found that the copper nanoparticles have been passivated and have not been oxidized in over 2 months.