Wrinkled three-dimensional porous MXene/Ni composite microspheres for efficient broadband microwave absorption

被引：115

作者：

Cui, Yuhong ^{[1
]}

Liu, Zihao ^{[1
]}

Zhang, Yunfei ^{[1
]}

Liu, Pei ^{[2
]}

Ahmad, Mudasir ^{[1
,2
]}

Zhang, Qiuyu ^{[1
,2
]}

Zhang, Baoliang ^{[1
,3
]}

机构：

[1] Northwestern Polytech Univ, Sch Chem & Chem Engn, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Xian Key Lab Funct Organ Porous Mat, Xian 710129, Peoples R China

[3] Sunresins New Mat Co Ltd, Shaanxi Engn & Res Ctr Funct Polymers Adsorpt & S, Xian 710072, Peoples R China

来源：

CARBON | 2021年 / 181卷

基金：

中国国家自然科学基金;

关键词：

MXene; Composite microspheres; Porous material; Ni nanochains; Microwave absorption; PERFORMANCE; NANOCOMPOSITES; NANOPARTICLES; FABRICATION; FIBER;

D O I：

10.1016/j.carbon.2021.05.022

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：

In this paper, two dimensional Ti(3)C(2)Tx MXene nanosheets and one-dimensional Ni nanochains are successfully assembled into three dimensional porous MXene/Ni composite microspheres by ultrasonic spray. Their unique micro nano structure and well-designed three-dimensional porous interconnection network can significantly improve the stacking of Ti(3)C(2)Tx MXene nanosheets and the agglomeration of magnetic Ni nanochains. By changing the content of Ni nanochains,we can obtain MXene/Ni composite microspheres with different magnetic content. Due to the difference in conductivity between Ti(3)C(2)Tx MXene and Ni, as well as the newly generated hetero interface and abundant surface groups, MXene/Ni composite microspheres show good impedance matching and excellent electromagnetic wave absorption performance. The minimum reflection loss (RLmin) is -52.7 dB@12.8 GHz, and the corresponding matching thickness is only 1.9 mm. The preparation of MXene/Ni composite microspheres provides a simple and effective method for designing other MXene-based composite materials. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页码：58 / 68

页数：11

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