Efficient and tunable microwave absorbers of the flower-like 1T/2H-MoS2 with hollow nanostructures

被引：17

作者：

Wu, Mei ^{[1
]}

Wang, Hongchang ^{[1
]}

Liang, Xiaohui ^{[1
,2
]}

Wang, Dunhui ^{[1
,2
]}

机构：

[1] Hangzhou Dianzi Univ, Hangzhou 310018, Peoples R China

[2] Nanjing Univ, Jiangsu Provincial Key Lab Nano Technol, Natl Lab Solid State Microstructures, Nanjing 210093, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 933卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Hollow nanostructures; 1T; 2H-MoS2; Interfacial polarization; Microwave absorption; ABSORPTION ENHANCEMENT; FACILE SYNTHESIS; MOS2; NANOSHEETS; COMPOSITES; MICROSPHERES; NANOPARTICLES; GROWTH; PHASE;

D O I：

10.1016/j.jallcom.2022.167763

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：

The highly efficient three-dimensional (3D) flower-like 1 T/2 H-MoS2 with hollow nanostructures are de-veloped elaborately construct via a simple hydrothermal process. The morphology and dielectric properties of the 1 T/2 H-MoS2 can be achieved to control changes by adjusting the solvent contents of deionized water and absolute ethanol, which can significantly improve the conductivity and impedance matching char-acteristics. The composites display outstanding microwave absorption properties with a minimum reflec-tion loss (RLmin) value of - 56.32 dB at 17.16 GHz with the matching thickness of 1.85 mm. The effective absorption bandwidth is 5.88 GHz with frequency range 11.96-17.84 GHz (covering 98% of Ku-band) when the thickness is 2.13 mm. Therefore, the experimental results show that the reasonable combination of multiphase MoS2 and hollow structures is beneficial to design of microwave absorbing materials.(c) 2022 Elsevier B.V. All rights reserved.

引用

页数：10

共 52 条

[1]

Acerce M, 2015, NAT NANOTECHNOL, V10, P313, DOI [10.1038/nnano.2015.40, 10.1038/NNANO.2015.40]

[2] Microwave absorption enhancement of 2-dimensional CoZn/C@MoS2@PPy composites derived from metal-organic framework [J].