Martis, Praveen and Fonseca, Antonio and Mekhalif, Zineb and Delhalle, Joseph (2010) Optimization of cuprous oxide nanocrystals deposition on multiwalled carbon nanotubes. Journal of Nanoparticle Research, 12 (2). pp. 439-448.
Cu (I) phenyl acetylide was used as a source of copper to achieve a homogeneous distribution of Cu2O nanocrystals (10â80Â nm) decorated on multiwalled carbon nanotubes (MWCNTs) having an average diameter of 10Â nm. Pristine MWCNTs were first oxygen-functionalized by treating them with a mixture of concentrated (H2SO4/HNO3 : 3/1) acids and the products were characterized by X-ray powder diffraction, transmission and scanning electron microscopy, energy dispersive X-ray analysis, X-ray photoelectron spectroscopy and thermogravimetric analysis. An easy, efficient and one-step impregnation method was followed to produce copper-containing nanoparticles on the MWCNTs. The copper-treated MWCNTs dried at room temperature were seen to be well decorated by copper-containing nanoparticles on their outer surface. The MWCNTs were then heat-treated at 400Â Â°C in a nitrogen atmosphere to produce a homogeneous distribution of cuprous oxide nanocrystals on their surface. By varying the ratio of copper to oxygen-functionalized MWCNTs, Cu2O nanocrystals decorated on MWCNTs with different copper content can be obtained.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Deposited On:||10 Feb 2010 10:02|
|Last Modified:||10 Feb 2010 10:02|
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