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Synthesis of 3D flower-like Fe3S4 microspheres and quasi-sphere Fe3S4-RGO hybrid-architectures with enhanced electromagnetic wave absorption.
- Source :
-
Nanotechnology . 2/21/2020, Vol. 31 Issue 8, p1-13. 13p. - Publication Year :
- 2020
-
Abstract
- 3D flower-like Fe3S4 microspheres and quasi-sphere Fe3S4-RGO hybrid-architectures were successfully fabricated by a facile template-free hydrothermal method. The results of morphology revealed that the single Fe3S4 was composed of many nanoflakes and the Fe3S4-RGO composites mainly distributed together into a ball up and down the RGO sheet. The electromagnetic parameters of the single Fe3S4 and Fe3S4-RGO composites could be controlled by adjusting different filler loading and the addition of different GO to achieve impedance matching. Both the single Fe3S4 and Fe3S4-RGO composites exhibited an excellent EM absorption ability. The minimum reflection loss (RL) of the single Fe3S4 with 50% filler loading could achieve −66.87 dB at 10.57 GHz for the thickness of 2.2 mm, and the absorption bandwidth (RL < −10 dB) could reach 3.49 GHz. For the Fe3S4-RGO composites, the minimum RL of FSR-1 could be −40.25 dB at 9.67 GHz with the thickness of 2.0 mm. In addition, the effective absorption bandwidth of FSR-2 could reach 3.85 GHz at only 1.45 mm and the minimum RL was −29.25 dB at 14.24 GHz. Consequently, the single Fe3S4 and Fe3S4-RGO composites are promising materials as a high performance and adjustable EM wave absorber. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTROMAGNETIC wave absorption
*MICROSPHERES
*IMPEDANCE matching
Subjects
Details
- Language :
- English
- ISSN :
- 09574484
- Volume :
- 31
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Nanotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 146086543
- Full Text :
- https://doi.org/10.1088/1361-6528/ab53c4