Yolk–Shell Ni@SnO 2 Composites with a Designable Interspace To Improve the Electromagnetic Wave Absorption Properties
Zhengzhou University of Aeronautics · Zhengzhou University · +1 more institution
Abstract
In this study, yolk–shell Ni@SnO2 composites with a designable interspace were successfully prepared by the simple acid etching hydrothermal method. The Ni@void@SnO2 composites were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The results indicate that interspaces exist between the Ni cores and SnO2 shells. Moreover, the void can be adjusted by controlling the hydrothermal reaction time. The unique yolk–shell Ni@void@SnO2 composites show outstanding electromagnetic wave absorption properties. A minimum reflection loss (RLmin) of −50.2 dB was obtained at 17.4 GHz with absorber…
Citation impact
- FWCI
- 26.27
- Percentile
- 100%
- References
- 67
Authors
8Topics & keywords
- Materials science
- Reflection loss
- Microwave
- Scanning electron microscope
- Composite material
- Composite number
- Dielectric
- Void (composites)
- Affordable and clean energy