首页|Design and synthesis of core-shell structure 3D-graphene/Fe3O4@N-C composite derived from Fe-MOF as lightweight microwave absorber

Design and synthesis of core-shell structure 3D-graphene/Fe3O4@N-C composite derived from Fe-MOF as lightweight microwave absorber

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  • NSTL
  • Elsevier
To improve the microwave absorption performances of Fe3O4@N-C composite derived from Fe-MOF, 3D-graphene particles have been successfully dotted on the surface of Fe3O4@N-C composite through pyrolyzing 3Dgraphene/Fe-MOF composites. Moreover, it is obvious that the electromagnetic parameters of the composites can be effectively adjusted by controlling the addition of 3D-graphene. Consequently, the optimal composite displays outstanding microwave absorption performances. The value of maximum reflection loss achieves-57.53 dB at 10.72 GHz with the effective absorption bandwidth of 3.92 GHz (9.18-13.10 GHz) at 2.30 mm matching thickness. In addition, the maximum effective absorption bandwidth with the value of 5.62 GHz (12.38-18.00 GHz) can be achieved at 1.81 mm matching thickness, which almost covers the whole Ku band. This work is expected to provide a reference for the mass preparation of new lightweight microwave absorption composites.

Metal organic frameworkFe3O4@N-C3D-grapheneMicrowave absorptionELECTROMAGNETIC-WAVE ABSORPTIONZEOLITIC IMIDAZOLATE FRAMEWORKSMETAL-ORGANIC FRAMEWORKSREDUCED GRAPHENE OXIDEFACILE SYNTHESISBROAD-BANDPERFORMANCENANOCOMPOSITESMICROSPHERESENHANCEMENT

Li, Songyan、Tian, Xiaoxia、Wang, Jiafu、Xia, Song、Ma, Lisi、Zhou, Junxiang、Li, Chenchen、Qin, Zhe、Qu, Shaobo

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Air Force Engn Univ

Xi An Jiao Tong Univ

2022

10.1016/j.diamond.2022.108941

Diamond and Related Materials

Diamond and Related Materials

EISCI
ISSN：0925-9635
年,卷(期)：2022.124
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