Metal-organic framework-derived NiSe2-CoSe2@C/Ti3C2Tx composites as electromagnetic wave absorbers

被引：145

作者：

Hou, Tianqi ^{[1
]}

Jia, Zirui ^{[1
,2
,3
]}

Wang, Bingbing ^{[1
]}

Li, Hanbin ^{[1
]}

Liu, Xuehua ^{[1
]}

Chi, Qingguo ^{[4
]}

Wu, Guanglei ^{[1
,3
]}

机构：

[1] Qingdao Univ, Inst Mat Energy & Environm, Coll Mat Sci & Engn, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China

[2] Qingdao Univ, Coll Chem & Chem Engn, Qingdao 266071, Shandong, Peoples R China

[3] Qingdao Univ, Weihai Innovat Inst, Qingdao 264200, Shandong, Peoples R China

[4] Harbin Univ Sci & Technol, Key Lab Engn Dielectr & Its Applicat, Minist Educ, Sch Elect & Elect Engn, Harbin 150080, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 422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：

Ti3C2Tx; Selenization; Multilayer structure; Electromagnetic wave absorption; MICROWAVE-ABSORPTION; CARBON; EFFICIENT; MXENE; PERFORMANCE; NANOSHEETS; HYBRIDS; DESIGN; MOFS;

D O I：

10.1016/j.cej.2021.130079

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Two-dimensional metal carbide or nitride materials are considered as a new class of electromagnetic wave absorbing materials due to their unique multilayer structure and metal-like properties. The NiSe2-CoSe2@C/Ti3C2Tx composites were prepared through a facile hydrothermal treatment and selenization reaction. Distinctly, the maximum reflection loss (RL) is -60.46 dB with the mass fraction of NiSe2-CoSe2@C/Ti3C2Tx of 40 wt% at 2.6 mm. The bandwidth of RL < -10 dB reaches up to 5.68 GHz (10.32-16 GHz). The synergistic mechanism of the multiple scattering and multi-interface polarization effects of NiSe2-CoSe2@C compounded with Ti3C2Tx is reviewed to interpret the significant improvement of electromagnetic wave absorption performance. The results indicate that NiSe2-CoSe2@C/Ti3C2Tx composites have potential applications as realistic electromagnetic wave absorbing materials.

引用

页数：12

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