Abstract

FUENTES, S; ZARATE, R. A; MUNOZ, P  and  DIAZ-DROGUETT, D. E. FORMATION OF HIERARCHICAL CUO NANOWIRES ON A COPPER SURFACE VIA A ROOM-TEMPERATURE SOLUTION-IMMERSION PROCESS. J. Chil. Chem. Soc. [online]. 2010, vol.55, n.1, pp. 147-149. ISSN 0717-9707.  doi: 10.4067/S0717-97072010000100034.

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.

Keywords : A. Oxides; A. Semiconductors; B. Chemical synthesis.