Pomegranate micro/nano hierarchical plasma structure for superior microwave absorption

查看全文 作　　者：Chunyan [1,4]Ding;Tao [1]Wu;Xinsen [1]Hu;Chengshuai [1]Shao;Zhipeng [1]Xu;Hui [1]Fu;Songsong [1,3]Wu;Guangwu [1,3,4]Wen;Xiaoxiao [2]Huang

机构地区：[1]School of Materials Science and Engineering,Shandong University of Technology,Zibo 255000,China;[2]School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;[3]Shandong Industrial Ceramics Research&Design Institute Co.,Ltd.,Zibo 255000,China;[4]Shandong Institute of Advanced Ceramic Co.,Ltd.,Zibo 255000,China

出　　处：《Nano Research》索引2022年第15卷第10期,共9页

基　　金：supported by the Taishan Scholar Project(No.ts201511080);the China Postdoctoral Science Foundation(No.2021M691963);the Key Research and Development Program of Shandong Province of China(Nos.2020JMRH0503 and 2019JMRH0402);the Fundamental Research Funds for the Central Universities(No.HIT.OCEF.2021003);the National Natural Science Foundation of China(Nos.51672059 and 51772060);Doctoral Scientific Research Start-up Foundation from Shandong University of Technology(Nos.4041/419008 and 4041/420022). 摘　　要：Inspired by the pomegranate natural artful structure,pomegranate micro/nano hierarchical plasma configuration of Fe/Fe3C@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. 关键词：electromagnetic wave absorption low filler loading carbon shell network structure magnetic Fe/Fe3C

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Pomegranate micro/nano hierarchical plasma structure for superior microwave absorption

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