Plasma synthesis and treatment of copper-based nanopowders
Cu-based nanoparticles with different morphologies were prepared via submerged elec- trical discharge of bulk copper and graphite electrodes in a CuCl2 aqueous solution. The synthesized material was subjected to laser-induced modification. The influence of discharge parameters and electrode compos...
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| Auteurs principaux: | , , , |
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| Format: | article |
| Langue: | EN |
| Publié: |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2010
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| Sujets: | |
| Accès en ligne: | https://doaj.org/article/94d194d1e9ed4ef3b46cf900fe836ed2 |
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| Résumé: | Cu-based nanoparticles with different morphologies were prepared via submerged elec-
trical discharge of bulk copper and graphite electrodes in a CuCl2 aqueous solution. The synthesized material was subjected to laser-induced modification. The influence of discharge
parameters and electrode composition on the morphology and composition of final products
were investigated by transmission electron microscopy (TEM), X-ray difractometry (XRD),
and UV-Vis spectroscopy. It was found that core-shell nanoparticles were formed by the
treatment of a CuCl2 aqueous solution by the arc pulsed discharge with a pulse duration of 4
ms and a peak current of 10 A. Irradiation of nanoparticles in an aqueous solution by a pulsed
Nd:YAG laser at 532 nm was shown to cause the shape change and size reduction of the particles. The possible formation mechanism of Cu-based nanoparticles is proposed. |
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