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Sci Rep. 2015 Mar 4;5:8737. doi: 10.1038/srep08737.

Controllable fabrication and magnetic properties of double-shell cobalt oxides hollow particles.

Author information

1
1] School of Resources Processing and Bioengineering, Central South University, Changsha, Hunan 410083, PR China [2] School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, PR China.
2
School of Resources Processing and Bioengineering, Central South University, Changsha, Hunan 410083, PR China.
3
School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, PR China.
4
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.

Abstract

Double-shell cobalt monoxide (CoO) hollow particles were successfully synthesized by a facile and effective one-pot solution-based synthetic route. The inner architecture and outer structure of the double-shell CoO hollow particles could be readily created through controlling experimental parameters. A possible formation mechanism was proposed based on the experimental results. The current synthetic strategy has good prospects for the future production of other transition-metal oxides particles with hollow interior. Furthermore, double-shell cobalt oxide (Co3O4) hollow particles could also be obtained through calcinating corresponding CoO hollow particles. The magnetic measurements revealed double-shell CoO and Co3O4 hollow particles exhibit ferromagnetic and antiferromagnetic behaviour, respectively.

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