Related Experiment Video
Updated: Apr 16, 2026

Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
Controllable fabrication and magnetic properties of double-shell cobalt oxides hollow particles
Dan Zhang1, Jianyu Zhu2, Ning Zhang3
11] 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.
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.
More Related Videos
Related Concept Videos
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Ferromagnetism

