Multifunctional Carbon Foam with Nanoscale Chiral Magnetic Heterostructures for Broadband Microwave Absorption in Low Frequency
Dalian University of Technology · Fudan University · +1 more institution
Abstract
Abstract The construction of carbon nanocoil (CNC)-based chiral-dielectric-magnetic trinity composites is considered as a promising approach to achieve excellent low-frequency microwave absorption. However, it is still challenging to further enhance the low frequency microwave absorption and elucidate the related loss mechanisms. Herein, the chiral CNCs are first synthesized on a three-dimensional (3D) carbon foam and then combined with the FeNi/NiFe 2 O 4 nanoparticles to form a novel chiral-dielectric-magnetic trinity foam. The 3D porous CNC-carbon foam network provides excellent impedance matching and strong conduction loss. The formation of the FeNi-carbon interfaces induces interfacial polarization loss,…
Citation impact
- FWCI
- 15.21
- Percentile
- 100%
- References
- 82
Authors
9Topics & keywords
- Materials science
- Reflection loss
- Microwave
- Dielectric loss
- Optoelectronics
- Ferrite (magnet)
- Absorption (acoustics)
- Permittivity