Stacking MoS2 flower-like microspheres on pomelo peels-derived porous carbon nanosheets for high-efficient X-band electromagnetic wave absorption
), Qingguo Zhang()Graphical Abstract
Abstract
The key to solve increasingly severe electromagnetic (EM) pollution is to explore sustainable, easily prepared, and cost-effective EM wave absorption materials with exceptional absorption capability. Herein, instead of anchoring on carbon materials in single layer, MoS2 flower-like microspheres were stacked on the surface of pomelo peels-derived porous carbon nanosheets (C) to fabricate MoS2@C nanocomposites by a facile solvothermal process. EM wave absorption performances of MoS2@C nanocomposites in X-band were systematically investigated, indicating the minimum reflection loss (RLmin) of −62.3 dB (thickness of 2.88 mm) and effective absorption bandwidth (EAB) almost covering the whole X-band (thickness of 2.63 mm) with the filler loading of only 20 wt.%. Superior EM wave absorption performances of MoS2@C nanocomposites could be attributed to the excellent impedance matching characteristic and dielectric loss capacity (conduction loss and polarization loss). This study revealed that the as-prepared MoS2@C nanocomposites would be a novel prospective candidate for the sustainable EM absorbents with superior EM wave absorption performances.
Keywords
Electronic Supplementary Material
References
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