相关实验视频

Updated: Sep 11, 2025

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

Published on: February 12, 2020

调节MXene材料的微观结构和吸收特性:理论和实验

Qiang Wang¹, Xiaolei Su¹, Yan Jia¹

¹School of Materials Science & Engineering, Xi'an Polytechnic University, Xi'an, 710048, P. R. China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|August 11, 2025

概括

基于的MXene (V2CTx) 显示出优异的微波吸收,达到-53.8dB和3.4GHz的带宽. 这种性能源于优化阻抗匹配和增强的波载体相互作用,指导未来的吸收器设计.

科学领域:

材料科学材料科学材料科学
凝聚物质物理学凝聚物质物理学
电磁学电磁学电磁学电磁学

背景情况:

一类二维材料的MXenes显示出电磁波吸收的前景.
在MXene结构中调整过渡金属元素对于优化其微波吸收特性至关重要.

研究的目的:

系统地研究过渡金属 (Ti,Nb,Ta,V) 如何调节各种MXenes中的微波吸收.
阐明这些材料中微波吸收的潜在物理机制.

主要方法:

多级特征技术 (微观结构,元素分布,化学状态).
电磁参数测量和理论计算 (状态密度,载体移动性).
规范化的阻抗分析.

主要成果:

V2CTx MXene表现出极好的X波段微波吸收 (-53.8 dB RL,3.4 GHz带宽).
维的多价d轨道增强载体的移动性和波载体相互作用,改善吸收.
基于Ti,Nb和Ta的MXenes由于低效的阻抗匹配和散射,表现有限.

结论:

原子尺度组合调整是设计高性能微波吸收器的关键.
在MXenes中,优化阻抗匹配和多机制能量消散是至关重要的.
V2CTx MXenes为先进的微波吸收应用提供了一个有前途的平台.

关键词:

这就是MXene MXene.电磁屏蔽是一种电磁屏蔽.电子带结构电子带结构微波吸收方式微波吸收方式过渡金属过渡金属

更多相关视频

Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol

Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol

Published on: December 20, 2016

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Published on: December 5, 2015

相关概念视频

Electrophilic Addition of HX to 1,3-Butadiene: Thermodynamic vs Kinetic Control

Electrophilic Addition of HX to 1,3-Butadiene: Thermodynamic vs Kinetic Control

The addition of a hydrogen halide to 1,3-butadiene gives a mixture of 1,2- and 1,4-adducts. Since more substituted alkenes are more stable, the 1,4-adduct is expected to be the major product. However, the product distribution is strongly influenced by temperature; low temperature favors the 1,2-adduct, whereas the 1,4-adduct is predominant at high temperature.