Three dimensional porous MXene/CNTs microspheres: Preparation, characterization and microwave absorbing properties

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2021-06-01 DOI:10.1016/j.compositesa.2021.106378

Yuhong Cui , Fei Wu , Jiqi Wang , Yabin Wang , Tariq Shah , Pei Liu , Qiuyu Zhang , Baoliang Zhang

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引用次数: 75

Abstract

In this paper, a simple ultrasonic spray technology is used to assemble one-dimensional (1D) carboxylated carbon nanotubes (C-CNTs) and two-dimensional (2D) Ti₃C₂Tx MXene nanosheets into three-dimensional (3D) porous MXene/C-CNTs microspheres (MCM). After vacuum carbonization, C-MCM with excellent microwave absorbing properties are obtained. It finds that the synergy of MXene and CNTs makes C-MCM have good impedance matching and microwave attenuation capabilities. Under the best mass ratio (MXene: CNTs = 3:1) and filler content (30%), the minimum reflection loss (RL_min) is −45 dB@10 GHz, and the corresponding matching thickness is 2.7 mm. When the thickness is 1.9 mm, the effective absorption bandwidth (EAB) reaches 4.9 GHz. By adjusting the thickness of the absorber, almost all electromagnetic waves in the C, X and Ku bands can be completely absorbed. Therefore, C-MCM provides a new way to manufacture electromagnetic wave absorbers with light weight, thin thickness, high efficiency and broadband.

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三维多孔MXene/CNTs微球:制备、表征及微波吸收性能

本文采用简单的超声喷涂技术，将一维(1D)羧基化碳纳米管(C-CNTs)和二维(2D) Ti3C2Tx MXene纳米片组装成三维(3D)多孔MXene/C-CNTs微球(MCM)。真空炭化后的C-MCM具有优异的吸波性能。研究发现，MXene和CNTs的协同作用使得C-MCM具有良好的阻抗匹配和微波衰减能力。在最佳质量比(MXene: CNTs = 3:1)和填料含量(30%)下，最小反射损耗(RLmin)为−45 dB@10 GHz，对应的匹配厚度为2.7 mm。当厚度为1.9 mm时，有效吸收带宽(EAB)达到4.9 GHz。通过调整吸波器的厚度，几乎可以完全吸收C、X、Ku波段的所有电磁波。因此，C-MCM为制造重量轻、厚度薄、效率高、宽带宽的电磁波吸收器提供了新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.