期刊
APPLIED PHYSICS LETTERS
卷 82, 期 19, 页码 3316-3318出版社
AMER INST PHYSICS
DOI: 10.1063/1.1569043
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One-dimensional and well-ordered CuO nanofiber arrays have been synthesized by a processing of self-catalytic growth. Using polycarbonate (PC) membrane as a template, copper nuclei sites Cu(111) were uniformly deposited on copper substrate via a high voltage input (electric field: 15 V/cm) in a copper sulphate solution. According to the pore diameter of PC membranes, two different sizes of copper nuclei could be well-controlled in ranges of 50 to 60 and 100 to 150 nm. With heat treatment in oxygen atmosphere, the electrodeposited copper nuclei were transformed into CuO nanofiber arrays. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy analyses showed that the nanocrystalline CuO nanofibers with a mean length of 8 mum had an average order of 10(7)-10(8)/cm(2) in density, and their average diameters were accorded with the size of Cu nuclei. (C) 2003 American Institute of Physics.
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