Abstract
The graphene supported Ni0.8Zn0.2Ce0.06Fe1.94O4 nanocomposite was prepared by a deoxidation technique. The structure, morphology and electromagnetic properties of the composites were characterized by various instruments. The Ni0.8Zn0.2Ce0.06Fe1.94O4 powders could be distributed on the graphene sheets (GNS). The as-prepared Ni0.8Zn0.2Ce0.06Fe1.94O4/GNS nanocomposite exhibits a saturated magnetization of 50.42emu/g. The electromagnetic parameters of Ni0.8Zn0.2Ce0.06Fe1.94O4/GNS nanocomposite were investigated in the 2-18GHz range. The composite Ni0.8Zn0.2Ce0.06Fe1.94O4/GNS exhibits better microwave absorbing properties than Ni0.8Zn0.2Ce0.06Fe1.94O4. The minimum loss value of Ni0.8Zn0.2Ce0.06Fe1.94O4/GNS nanocomposite is -37.4dB at 12.3GHz and a broad peak with a bandwidth lower than -10dB is at 10.7-15.2GHz. These results show that the introduction of GNS can increase the complex permittivities and has an important effect on the improvement of microwave absorption properties.
Original language | English |
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Pages (from-to) | 304-308 |
Number of pages | 5 |
Journal | Powder Technology |
Volume | 249 |
DOIs | |
State | Published - Nov 2013 |
Keywords
- Electromagnetic property
- Graphene supported
- NiZnCeFeO