Current Nanoscience

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Formation of Hollow Copper Oxide by Oxidation of Cu Nanoparticles

Author(s): J.-G. Lee, R. Nakamura, Y.-S. Choi, J.-H. Yu, C.-J. Choi.

Abstract:

The formation of hollow Cu oxide nanoparticles through the oxidation process has been studied with Cu nanoparticles produced by the plasma arc discharge method. The initial copper nanoparticles had a size range of 40 - 60 nm and a thin Cu2O layer on the surface. After oxidation at 100°C, there was no significant change in the particles. After oxidation at 200°C, however, the particles consisted of Cu2O and CuO instead of metallic Cu. By further increasing the temperature up to 300°C, only CuO particles remained. The obtained CuO particles had a hollow structure which resulted from the Kirkendall effect.

Keywords: Copper, hollow, nanoparticles, oxidation.

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Article Details

VOLUME: 10
ISSUE: 1
Year: 2014
Page: [101 - 103]
Pages: 3
DOI: 10.2174/1573413709666131108232654