Stacking MoS_(2) flower-like microspheres on pomelo peels-derived porous carbon nanosheets for high-efficient X-band electromagnetic wave absorption  

作　　者：Jia Zhao Zhe Gu Qingguo Zhang 

机构地区：[1]College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China

出　　处：《Nano Research》2024年第3期1607-1615,共9页纳米研究（英文版）

基　　金：supported by the PhD Start-up Fund of Science and Technology Department of Liaoning Province(No.2022-BS-306);the General Cultivation Scientific Research Project of Bohai University(No.0522xn058);the PhD Research Startup Foundation of Bohai University(No.0521bs021).

摘　　要：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,MoS_(2) flower-like microspheres were stacked on the surface of pomelo peels-derived porous carbon nanosheets(C)to fabricate MoS_(2)@C nanocomposites by a facile solvothermal process.EM wave absorption performances of MoS_(2)@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 MoS_(2)@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 MoS_(2)@C nanocomposites would be a novel prospective candidate for the sustainable EM absorbents with superior EM wave absorption performances.

关 键 词：pomelo peels-derived porous carbon nanosheets(C) MoS_(2)@C nanocomposites stacked structure electromagnetic(EM)wave absorption 

分 类 号：TB34[一般工业技术—材料科学与工程]