Open Access Nano Express

Confined conversion of CuS nanowires to CuO nanotubes by annealing-induced diffusion in nanochannels

Cheng Mu and Junhui He*

Author affiliations

Functional Nanomaterials Laboratory and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Zhongguancun Beiyitiao 2, Haidianqu, Beijing 100190, China

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Citation and License

Nanoscale Research Letters 2011, 6:150  doi:10.1186/1556-276X-6-150

Published: 16 February 2011

Abstract

Copper oxide (CuO) nanotubes were successfully converted from CuS nanowires embedded in anodic aluminum oxide (AAO) template by annealing-induced diffusion in a confined tube-type space. The spreading of CuO and formation of CuO layer on the nanochannel surface of AAO, and the confinement offered by AAO nanochannels play a key role in the formation of CuO nanotubes.