Lightweight Honeycomb rGO/Ti3C2Tx MXene Aerogel without Magnetic Metals toward Efficient Electromagnetic Wave Absorption Performance

被引：22

作者：

Bao Y. ^{[1
]}

Guo S. ^{[1
,3
]}

Li Y. ^{[1
,2
,3
,4
]}

Jia Z. ^{[1
,3
]}

Guan H. ^{[1
]}

Lei D. ^{[1
,2
,3
]}

Chen J. ^{[1
]}

Zhong B. ^{[2
]}

Li Z. ^{[2
]}

机构：

[1] School of Civil Engineering, Qingdao University of Technology, Qingdao

[2] Postdoctoral Workstation, Guangdong Dongpeng Holding Company Limited, Guangdong

[3] Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao University of Technology, Qingdao

[4] National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin

来源：

ACS Applied Electronic Materials | 2023年 / 5卷 / 01期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

electromagnetic wave; impedance matching; nonmagnetic; porous effect; rGO/Ti[!sub]3[!/sub]C[!sub]2[!/sub]T[!sub]x[!/sub] MXene aerogel nanocomposites;

D O I：

10.1021/acsaelm.2c01271

中图分类号：

学科分类号：

摘要：

Nonmagnetic electromagnetic wave (EMW)-absorbing materials have aroused research interest on account of their light weight, chemical stability, and excellent dielectric property. However, it is still a great challenge to fabricate one kind of nonmagnetic EMW-absorbing materials with a unique structure and excellent EMW-absorbing performance. Herein, lightweight (∼3.2 mg/cm3) honeycomb rGO/Ti3C2Tx MXene aerogel nanocomposites without magnetic metals were successfully fabricated via a green and convenient method in our work. Surprisingly, when the filler loading is only 5 wt % under the coaxial test, the minimum reflection loss (RL) value of the rGO/MXene-1:0.5 aerogel nanocomposite is −74.01 dB (99.99997% wave absorption) at 14.77 GHz with the thickness of only 1.80 mm. The effective absorption band (EAB) value under the arch test covers the whole C band, X band, and most of the C band. Furthermore, computer simulation technology (CST) data further demonstrated that the rGO/MXene-1:0.5 aerogel nanocomposite-covered model owns the smallest radar cross section (RCS) value, indicating that it possesses favorable radar wave attenuation capacity. Thus, the nonmagnetic honeycomb rGO/Ti3C2Tx MXene aerogel nanocomposites can be promising candidates for designing efficient lightweight EMW absorbers. © 2023 American Chemical Society.

引用

页码：227 / 239

页数：12

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