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由C-Co外骨架支持的MXene空洞球体生长MWCNTs,以获得高效的微波吸收

Ze Wu¹, Xiuli Tan¹, Jianqiao Wang¹

¹School of Mechanical Engineering, Southeast University, Nanjing, 211189, People's Republic of China.

Nano-micro letters

|February 2, 2024

概括

研究人员开发了一种新的微波吸收材料,使用空洞的MXene球体和带有多壁碳纳米管的C-Co框架. 这种轻量级的核心外复合材料在最小的厚度下提供了优异的电磁污染降低.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
电磁学电磁学电磁学电磁学

背景情况:

电磁污染是一个日益关注的问题,需要先进的微波吸收 (MA) 材料.
现有的MA材料通常在性能,重量或成本方面面临限制.

研究的目的:

开发一种高性能,轻量级的微波吸收材料.
为了研究一个包含MXene,C-Co和多壁碳纳米管 (MWCNTs) 的核心外结构的协同效应,以增强MA特性.

主要方法:

用C-Co框架和MWCNT装载的空心MXene球体组成的复合材料的制造.
材料的形态,阻抗和电磁波减弱能力的表征.
评估微波吸收性能,包括反射损失 (RL) 和有效吸收带宽 (EAB),在各种厚度和填充比率.

主要成果:

核心外结构,C-Co外骨和MWCNT内骨,显著提高了MA的性能.
在2.04毫米厚度下,达到-70.70dB的最小反射损失 (RLmin).
观察到有效吸收带宽为5.67GHz,RLmin为-63.25dB在1.861mm的样品在700°C时化.
保持了出色的性能,其低填充比率为15%重量.

结论:

开发的轻量级核心外复合材料显示出优越的微波吸收能力.
MXene,C-Co和MWCNT的组合表现出磁电协同作用,可以有效地减弱电磁波.
这项研究提出了一种可行的方法,用于创建用于减轻电磁污染的先进MA材料.

关键词:

在CCo骨架上在 MWCNTs 中.这就是MXene MXene.微波吸收方式微波吸收方式

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