CuO nanowires can be synthesized by heating copper substrates in air

被引:974
作者
Jiang, XC [1 ]
Herricks, T [1 ]
Xia, YN [1 ]
机构
[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA
关键词
D O I
10.1021/nl0257519
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper describes a vapor-phase approach to the facial synthesis of cupric oxide (CuO) nanowires supported on the surfaces of various copper substrates that include grids, foils, and wires. A typical procedure simply involved the thermal oxidation of these substrates in air and within the temperature range from 400 to 700 degreesC. Electron microscopic studies indicated that these nanowires had a controllable diameter in the range of 30-100 nm with lengths of up to 15 mum by varying the temperature and growth time. Electron diffraction and high-resolution TEM studies implied that each CuO nanowire was a bicrystal divided by a (111) twin plane in its middle along the longitudinal axis. A possible mechanism was also proposed to account for the growth of these CuO nanowires.
引用
收藏
页码:1333 / 1338
页数:6
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