Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 806, Issue -, Pages 983-991Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.07.334
Keywords
Porous structures; ZnO/C nanofibers; Lightweight; Attenuation; Broad absorption bandwidth
Categories
Funding
- Aeronautics Science Foundation of China [2017ZF52066]
- National Natural Science Foundation of China [11575085]
- Qing Lan Project
- Six talent peaks project in Jiangsu Province [XCL-035]
- Jiangsu 333 talent project
- Open Research Fund of Jiangsu Provincial Key Laboratory for Nanotechnology of Nanjing University
- foundation of Jiangsu Provincial Key Laboratory of Bionic Functional Materials
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Carbon fibers exhibit the potential as lightweight absorbers, however, their high conductive capability often results in much reflection waves on the absorber surfaces. Here, novel ZnO/carbon porous nanofibers were derived from zinc-based organic-metal frameworks (MOFs, ZIF-8) by electro-spinning method. The porous structures make a great contribution to dielectric loss. In addition, the conductive networks can also provide more pathways for electrons transferring. With the good impedance matching and attenuation capability, ZnO/carbon porous nanofibers display good microwave response ability. The minimum reflection loss (RL) is -22.89 dB at 16.2 GHz with 1.5 mm, the effective absorption bandwidth (f(E)) reach 5.64 GHz. In this work, the influences of microstructure on electromagnetic parameters and absorbing properties are revealed by designing the novel porous carbon fibers. (C) 2019 Published by Elsevier B.V.
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