Confinedly growing and tailoring of Co3O4 clusters-WS2 nanosheets for highly efficient microwave absorption

被引：72

作者：

Zhang, Deqing ^{[1
]}

Liu, Tingting ^{[1
]}

Zhang, Min ^{[2
]}

Zhang, Huibin ^{[1
]}

Yang, Xiuying ^{[1
]}

Cheng, Junye ^{[3
]}

Shu, Jincheng ^{[2
]}

Li, Lin ^{[4
]}

Cao, Maosheng ^{[2
]}

机构：

[1] Qiqihar Univ, Sch Mat Sci & Engn, Qiqihar 161006, Peoples R China

[2] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

[3] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong 999077, Peoples R China

[4] Harbin Normal Univ, Minist Educ, Sch Phys & Electron Engn, Key Lab Photon & Electron Bandgap Mat, Harbin 150025, Peoples R China

来源：

NANOTECHNOLOGY | 2020年 / 31卷 / 32期

基金：

中国国家自然科学基金;

关键词：

2D WS2 nanosheets; Co3O4; nanoclusters; magnetic cluster tailoring; hetero-structure; microwave absorption; ELECTROMAGNETIC-WAVE ABSORPTION; REDUCED GRAPHENE OXIDE; WHOLE X-BAND; MICROSPHERES; COMPOSITES; NANOPARTICLES; FABRICATION; LIGHTWEIGHT; CONVERSION; BANDWIDTH;

D O I：

10.1088/1361-6528/ab8b8d

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electromagnetic (EM) wave absorbing materials have been a research hotspot in materials science and related technical fields in recent years. Finding lightweight, efficient, and broadband electromagnetic wave absorbing materials has always been a very challenging subject. Herein, we successfully prepared Co3O4-WS2 hybrid nanosheets with heterostructures, which excellent combine the advantages of magnetic property of Co3O4 and dielectric property of WS2. By the electromagnetic synergy effect, maximum RL is up to -61.1 dB at 1.9 mm, and the bandwidth exceeds 5 GHz. Such highly efficient microwave absorption is attributed to not only the electromagnetic synergy effect, but the dipole polarization as well as conduction loss. These results show that the obtained Co3O4-WS2 is an excellent EM wave absorbing material and can be used as a candidate for advanced EM wave absorbing materials in the fields such as commerce, military and aerospace in future.

引用

页数：11

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