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- Title
Hydrothermal synthesis and microwave absorption properties of FeO@SnO core-shell structured microspheres.
- Authors
Wang, Yanping; Peng, Zheng; Jiang, Wei
- Abstract
FeO@SnO core-shell structured microspheres have been designed and synthesized by a simple hydrothermal method. The transmission electron microscopy and scanning electron microscopy characterization results indicate that SnO nanoparticles were successfully grown on the surface of FeO microspheres with different sizes. The X-ray diffractograms show that the nanocomposites are composed of cubic FeO and tetragonal SnO. The magnetic hysteresis measurements reveal the ferromagnetic behavior of the nanocomposites at room temperature. Considering that both FeO and SnO are good microwave absorption materials, we have investigated the microwave absorption properties by a vector network analyzer between 2 and 18 GHz at room temperature. The electromagnetic data demonstrate that the as-synthesized FeO@SnO microspheres exhibit extraordinary microwave absorption properties, which may result from the proper electromagnetic match and interface polarization between the FeO cores and SnO shells. Moreover, a possible formation mechanism of FeO@SnO microspheres based on the hydrothermal method was also proposed.
- Subjects
MICROSPHERES; HYDROTHERMAL synthesis; TRANSMISSION electron microscopy; SCANNING electron microscopy; NANOPARTICLES; NANOCOMPOSITE materials
- Publication
Journal of Materials Science: Materials in Electronics, 2015, Vol 26, Issue 7, p4880
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-2997-0