Fe@Fe 3 C Core-Shell Nanoparticles Embedded in Polyvinyl Alcohol-Derived Porous Carbon toward Light and High-Performance Microwave Absorption

High-performance microwave absorbents play a key role in information technology field. In this work, excellent microwave absorption property was achieved via embedded Fe@Fe 3 C core–shell nanoparticles in polyvinyl alcohol-derived porous carbon matrix. The results indicate that the microwave absorpt...

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Bibliographic Details
Published in:ECS journal of solid state science and technology 2022-10, Vol.11 (10), p.101003
Main Authors: Liu, Zixuan, Zhang, Lujie, Zhao, Yehao, Bi, Xinran, Cai, Wenjun, Tan, Liwen, Liu, Yao, Liu, Dong, Zhang, Zidong
Format: Article
Language:English
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Summary:High-performance microwave absorbents play a key role in information technology field. In this work, excellent microwave absorption property was achieved via embedded Fe@Fe 3 C core–shell nanoparticles in polyvinyl alcohol-derived porous carbon matrix. The results indicate that the microwave absorption performance will be greatly enhanced due to the interface between the nanoparticles and matrix, as well as the core–shell and porous structure, increase the energy consumption capacity via dipole polarization, interface loss and the multiple reflection/scattering. The maximum reflection loss (RL max ) reaches −56.88 dB at 11.3 GHz with the thickness of 2.11 mm, and the effective absorption bandwidth (EAB, RL
ISSN:2162-8769
2162-8777
DOI:10.1149/2162-8777/ac96a3