Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 30, Issue 45, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202002595
Keywords
hierarchical structures; microwave absorption; MXene
Categories
Funding
- National Natural Science Foundation of China [51822501]
- Natural Science Foundation of Jiangsu Province [BK20170023, BK20181274]
- Top 6 High-Level Talents Program of Jiangsu Province [2017-GDZB-006]
- International Foundation for Science, Stockholm, Sweden
- Organization for the Prohibition of Chemical Weapons, The Hague, Netherlands [F/4736-2]
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Microcosmic 3D hierarchical structural design has proved to be an effective strategy to obtain high-performance microwave absorbers, although the treatments to low-dimensional cells in monolithic framework are usually based on semiempirical rules. In this work, a hierarchical carbon fiber (CF)@MXene@MoS2(CMM) core-sheath synergistic structure with tunable and efficient microwave absorption (MA) properties is fabricated by introducing self-assembled Ti(3)C(2)T(x)MXene on the surface of CF and subsequent anchoring of MoS2. By the synergistic effects from the MXene sheath increasing the conductive loss and MoS(2)at the outermost layer improving the impedance matching, the MA performance of CMM can be effectively regulated and optimized: the optimal reflection loss is -61.51 dB with a thickness of 3.5 mm and the maximum effective absorption bandwidth covers the whole Ku-band with 7.6 GHz at 2.1 mm. Meanwhile, the whole X-band absorption can also be achieved with specific MoS(2)loading at an optimized thickness.
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