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RESEARCH ARTICLE

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Controlled Synthesis of One-Dimensional Single-Crystal Co₃O₄ Nanowires

Jin Du ^A , Lanlan Chai ^A , Gongming Wang ^A , Kai Li ^A and Yitai Qian ^A ^B

+ Author Affiliations

- Author Affiliations

^A Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.

^B Corresponding author. Email: dujindj@mail.ustc.edu.cn

Australian Journal of Chemistry 61(2) 153-158 https://doi.org/10.1071/CH07186
Submitted: 1 June 2007 Accepted: 10 January 2008 Published: 11 February 2008

Abstract

Uniform Co₃O₄ nanowires with diameters of ~80 nm and lengths of 10–20 μm have been prepared by a hydrothermal reaction and sequential decomposition of the intermediate product. Transmission electron microscopy characterization and selected-area electron diffraction patterns show that the nanowires elongate along the [110] direction. The amount of CO(NH₂)₂ employed and the heating rate of calcination have a key effect on the morphology of the product. In addition, analysis of the optical properties indicates a blue shift of the bandgaps and reveals the semiconductive nature of the products.

Acknowledgement

This work is financially supported by the National Natural Science Found of China and the 973 Project of China (No 2005CB623601). The authors appreciate Professor Shuyuan Zhang for performing the HRTEM and for friendly discussions.

References

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