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.
Highlights
Well-aligned semiconductor one-dimensional (1D) nanostructures have attracted extensive attention in the last decade owing to their great potential in novel optoelectronic nanodevices, such as laser diodes, field effect transistors, light-emitting diodes, and sensors [1]
This approach may be extended to the synthesis of various metal oxide nanotubes by annealing their precursor nanowires embedded in anodic aluminum oxide (AAO) template, and the precursor can be sulfides, carbonates, and oxalates, which can be readily transformed into oxides at elevated temperatures
The purity and crystallinity of as-prepared CuS nanowires and copper oxide (CuO) nanotubes were characterized by X-ray diffraction (XRD) measurements before removing the AAO membrane
Summary
Well-aligned semiconductor one-dimensional (1D) nanostructures have attracted extensive attention in the last decade owing to their great potential in novel optoelectronic nanodevices, such as laser diodes, field effect transistors, light-emitting diodes, and sensors [1]. A novel approach for the preparation of CuO nanotubes via confined conversion from CuS nanowires
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