One-step synthesis of MoS2 nanoparticles with different morphologies for electromagnetic wave absorption

被引：62
作者：
Feng, Zhou [1 ]
Yang, Peipei [1 ]
Wen, Guosheng [2 ]
Li, Haibo [1 ]
Liu, Ying [3 ]
Zhao, Xiuchen [3 ]
机构：
[1] Ningxia Univ, Ningxia Key Lab Photovolta Mat, Ningxia 750021, Peoples R China
[2] Cent Engn Inst Non Ferrous Met Ind, Beijing 100081, Peoples R China
[3] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2020年 / 502卷
关键词：
MoS2; nanoparticles; Specific surface area; Polarization; Electromagnetic wave absorption; Absorption bandwidth; REDUCED GRAPHENE OXIDE; HYDROGEN EVOLUTION REACTION; NANOSHEETS; PERFORMANCE; HYBRID; CATALYSTS; SUPERCAPACITOR; FABRICATION; ELECTRODE; COMPOSITE;
D O I：
10.1016/j.apsusc.2019.144129
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electromagnetic wave (EMW) absorbing materials have an important application in people's living environment. EMW absorption properties are affected by the morphology of EMW absorbing materials. MoS2 is two-dimensional layered structure and complex shaped structures can be formed by different stacking between layers. Here, we prepared flower-shaped MoS2 nanoparticles and flake-shaped MoS2 nanoparticles by hydrothermal method, and investigated the EMW absorption performance of both samples. Flower-shaped MoS2 nanoparticles had a larger specific surface area than that of flake-shaped MoS2 nanoparticles, so that the flower-shaped MoS2 nanoparticles had a superior EMW absorption performance. It was found that the samples consisting of 30 wt% flower-shaped MoS2 nanoparticles in the wax matrix based composites exhibited an effective EMW absorption bandwidth of 7.6 GHz (10.32-17.92 GHz) with the thickness of 3.0 mm. The minimum RL value of -39.20 dB was observed at 17.60 GHz for the sample with a thickness of 2.4 mm. The present work has a significant potential for the development of EMW absorbing materials with single metal sulfide.
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页数：8
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