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FORMATION OF HIERARCHICAL CUO NANOWIRES ON A COPPER SURFACE VIA A ROOM-TEMPERATURE SOLUTION-IMMERSION PROCESS

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2010
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Fuentes, S.
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FORMATION OF HIERARCHICAL CUO NANOWIRES ON A COPPER SURFACE VIA A ROOM-TEMPERATURE SOLUTION-IMMERSION PROCESS
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  • Fuentes, S.;
  • Zárate Aliaga, Ramón;
  • Muñoz, P.;
  • Díaz Droguett, Donovan Enrique;
Abstract
CuO nanowires were successfully made through a simple wet chemical method at room temperature by immersing on copper sheets in a 4 M ammonia solution for 4 days and then subjecting it to heat treatment. Immersion time and heat treatment have an important effect on the length, diameter, and density of the CuO nanostructures. X-ray powder diffraction (XRD) patterns indicated that the samples are composed of a single phase, CuO. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy studies showed that the wet-treated samples consisted of nanofiber-like structures of monoclinic CuO, while the heat-treated samples consisted of well-defined nanowires which also exhibited the monoclinic phase.
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This work was supported by the DGIP of the Universidad Católica del Norte. We acknowledge a grant from Minera Escondida Limitada (MEL 22) and project ESO-AUI. R.A.Z. acknowledges grants from FUNDACIÓN ANDES under contract C-13876.
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URI: https://repositorio.uchile.cl/handle/2250/125355
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J. Chil. Chem. Soc., 55, Nº 1 (2010)
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