Pomegranate micro/nano hierarchical plasma structure for superior microwave absorption

Inspired by the pomegranate natural artful structure, pomegranate micro/nano hierarchical plasma configuration of Fe/Fe 3 C@graphitized carbon (FFC/pCL) was constructed based on the green sol-gel method and in-situ chemical vapor deposition (CVD) synthesis protocol. Pomegranate-like FFC/pCL successf...

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Bibliographic Details
Published in:Nano research 2022-10, Vol.15 (10), p.8688-8696
Main Authors: Ding, Chunyan, Wu, Tao, Hu, Xinsen, Shao, Chengshuai, Xu, Zhipeng, Fu, Hui, Wu, Songsong, Wen, Guangwu, Huang, Xiaoxiao
Format: Article
Language:English
Subjects:
Absorption
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Carbon
Cementite
Chemical synthesis
Chemical vapor deposition
Chemistry and Materials Science
Condensed Matter Physics
Configurations
Cores
Electromagnetic radiation
Graphitization
Heterostructures
Iron carbides
Materials Science
Microwave absorption
Nanoparticles
Nanotechnology
Plasma
Research Article
Sol-gel processes
Surface layers
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Summary:Inspired by the pomegranate natural artful structure, pomegranate micro/nano hierarchical plasma configuration of Fe/Fe 3 C@graphitized carbon (FFC/pCL) was constructed based on the green sol-gel method and in-situ chemical vapor deposition (CVD) synthesis protocol. Pomegranate-like FFC/pCL successfully overcame the agglomeration phenomenon of magnetic nanoparticles with each seed of the pomegranate consisting of Fe/Fe 3 C as cores and graphitized carbon layers as shells. The high-density arrangement of magnetic nanoparticles and the design of pomegranate-like heterostructures lead to enhanced plasmon resonance. Thus, the pomegranate-like FFC/pCL achieved a great electromagnetic wave (EMW) absorbing performance of 6.12 GHz wide band absorption at a low mass adding of only 16.7 wt.%. Such excellent EMW performance can be attributed to its unique pomegranate hierarchical plasma configuration with separated nanoscale iron cores, surface porous texture, and good carbon conductive network. This investigation provides a new paradigm for the development of magnetic/carbon based EMW absorbing materials by taking advantage of pomegranate hierarchical plasma configuration.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-022-4522-0