Construction of metal-organic framework derived Co/ZnO/Ti3C2Tx composites for excellent microwave absorption

被引：72
作者：
Kong, Mingyue [1 ]
Jia, Zirui [1 ]
Wang, Bingbing [1 ]
Dou, Jinlei [1 ]
Liu, Xuehua [1 ]
Dong, Yuhao [1 ]
Xu, Binghui [1 ]
Wu, Guanglei [1 ]
机构：
[1] Qingdao Univ, Coll Mat Sci & Engn, Inst Mat Energy & Environm, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China
来源：
SUSTAINABLE MATERIALS AND TECHNOLOGIES | 2020年 / 26卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Metal-organic frameworks; Co/ZnO/Ti3C2Tx composites; Polarization behavior; Multiple reflections; EM wave absorption; SURFACE-AREA; PERFORMANCE; EFFICIENT; NANOCOMPOSITES; NANOPARTICLES; ADSORPTION; NANOCAGES; DESIGN;
D O I：
10.1016/j.susmat.2020.e00219
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Co/ZnO/Ti3C2Tx composites were successfully prepared by using metal organic framework (MOF) and twodimensional titanium carbide composites as precursors via a simple self-assembly process and subsequent annealing treatment. The influence of carbonization temperature on microwave absorption properties was studied in detail. Multiple scattering and reflection and polarization behaviors produced by its unique laminated structure endow the material with excellent performance. When the annealing temperature was 750 degrees C, the best reflection loss value could reach -44.22 dB at 2.4 mm, and the maximum effective absorption bandwidth was 5.28 GHz at the thickness of 2.4 mm. The microwave absorption mechanism is attributed to dielectric loss, magnetic loss, multiple reflections and scattering. Therefore, Co/ZnO/Ti3C2Tx composites can be used as an idea choice for lightweight and efficient microwave absorbers. (C) 2020 Elsevier B.V. All rights reserved.
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页数：10
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