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SM ISO690:2012 TARASENKO, N., NEVAR, A., SAVASTENKO, N., GRIGORIEVA, T.. Plasma synthesis and treatment of copper-based nanopowders . In: Moldavian Journal of the Physical Sciences, 2010, nr. 3-4(9), pp. 314-323. ISSN 1810-648X. |
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Moldavian Journal of the Physical Sciences | |
Numărul 3-4(9) / 2010 / ISSN 1810-648X /ISSNe 2537-6365 | |
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Pag. 314-323 | |
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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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