MXene-based rGO/Nb2CTx/Fe3O4 composite for high absorption of electromagnetic wave

Ce Cui; Ronghui Guo; Erhui Ren; Hongyan Xiao; Mi Zhou; Xiaoxu Lai; Qin Qin; Shouxiang Jiang; Wenfeng Qin

doi:10.1016/j.cej.2020.126626

MXene-based rGO/Nb₂CT_x/Fe₃O₄ composite for high absorption of electromagnetic wave

Ce Cui, Ronghui Guo, Erhui Ren, Hongyan Xiao, Mi Zhou, Xiaoxu Lai, Qin Qin, Shouxiang Jiang, Wenfeng Qin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

167 Citations (Scopus)

Abstract

A rGO/Nb₂CT_x/Fe₃O₄ composite with a hierarchical architecture is prepared by integrating multilayered Nb₂CT_x, magnetic Fe₃O₄ nanoparticles and two-dimensional rGO sheets. The rGO/Nb₂CT_x/Fe₃O₄ composite shows superior absorption of electromagnetic wave with a minimum reflection loss (RL_min) of −59.17 dB at 11.8 GHz with an equal absorber thickness of 2.5 mm as well as a broad effective absorption bandwidth (EAB, RL ≤ 10 dB) of 6.8 GHz. The tunable EAB can be achieved at a frequency range of 8.5 to 18 GHz by modifying the thickness of the absorber from 1.5 to 3 mm. The excellent absorption capacity of electromagnetic wave is attributed to the synergetic effects between the multiple loss mechanisms of rGO/Nb₂CT_x/Fe₃O₄ and good impedance matching. The results provide new insight into MXene-based absorbers with enhanced ability to absorb electromagnetic wave by incorporating the magnetic components and 2D rGO sheets.

Original language	English
Article number	126626
Journal	Chemical Engineering Journal
Volume	405
DOIs	https://doi.org/10.1016/j.cej.2020.126626
Publication status	Published - 1 Feb 2021

Keywords

Electromagnetic wave absorption
Hierarchical architecture
MXene
rGO/NbCT/FeO composite

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

More information

10.1016/j.cej.2020.126626

Cite this

@article{0c8d759a735049e0be08c229e5963377,

title = "MXene-based rGO/Nb2CTx/Fe3O4 composite for high absorption of electromagnetic wave",

abstract = "A rGO/Nb2CTx/Fe3O4 composite with a hierarchical architecture is prepared by integrating multilayered Nb2CTx, magnetic Fe3O4 nanoparticles and two-dimensional rGO sheets. The rGO/Nb2CTx/Fe3O4 composite shows superior absorption of electromagnetic wave with a minimum reflection loss (RLmin) of −59.17 dB at 11.8 GHz with an equal absorber thickness of 2.5 mm as well as a broad effective absorption bandwidth (EAB, RL ≤ 10 dB) of 6.8 GHz. The tunable EAB can be achieved at a frequency range of 8.5 to 18 GHz by modifying the thickness of the absorber from 1.5 to 3 mm. The excellent absorption capacity of electromagnetic wave is attributed to the synergetic effects between the multiple loss mechanisms of rGO/Nb2CTx/Fe3O4 and good impedance matching. The results provide new insight into MXene-based absorbers with enhanced ability to absorb electromagnetic wave by incorporating the magnetic components and 2D rGO sheets.",

keywords = "Electromagnetic wave absorption, Hierarchical architecture, MXene, rGO/NbCT/FeO composite",

author = "Ce Cui and Ronghui Guo and Erhui Ren and Hongyan Xiao and Mi Zhou and Xiaoxu Lai and Qin Qin and Shouxiang Jiang and Wenfeng Qin",

note = "Funding Information: This work was financially supported by The National Natural Science Foundation of China and The Civil Aviation Administration of China (No. U1833118 ). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

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doi = "10.1016/j.cej.2020.126626",

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AU - Cui, Ce

AU - Guo, Ronghui

AU - Ren, Erhui

AU - Xiao, Hongyan

AU - Zhou, Mi

AU - Lai, Xiaoxu

AU - Qin, Qin

AU - Jiang, Shouxiang

AU - Qin, Wenfeng

N1 - Funding Information: This work was financially supported by The National Natural Science Foundation of China and The Civil Aviation Administration of China (No. U1833118 ). Publisher Copyright: © 2020 Elsevier B.V.

PY - 2021/2/1

Y1 - 2021/2/1

N2 - A rGO/Nb2CTx/Fe3O4 composite with a hierarchical architecture is prepared by integrating multilayered Nb2CTx, magnetic Fe3O4 nanoparticles and two-dimensional rGO sheets. The rGO/Nb2CTx/Fe3O4 composite shows superior absorption of electromagnetic wave with a minimum reflection loss (RLmin) of −59.17 dB at 11.8 GHz with an equal absorber thickness of 2.5 mm as well as a broad effective absorption bandwidth (EAB, RL ≤ 10 dB) of 6.8 GHz. The tunable EAB can be achieved at a frequency range of 8.5 to 18 GHz by modifying the thickness of the absorber from 1.5 to 3 mm. The excellent absorption capacity of electromagnetic wave is attributed to the synergetic effects between the multiple loss mechanisms of rGO/Nb2CTx/Fe3O4 and good impedance matching. The results provide new insight into MXene-based absorbers with enhanced ability to absorb electromagnetic wave by incorporating the magnetic components and 2D rGO sheets.

AB - A rGO/Nb2CTx/Fe3O4 composite with a hierarchical architecture is prepared by integrating multilayered Nb2CTx, magnetic Fe3O4 nanoparticles and two-dimensional rGO sheets. The rGO/Nb2CTx/Fe3O4 composite shows superior absorption of electromagnetic wave with a minimum reflection loss (RLmin) of −59.17 dB at 11.8 GHz with an equal absorber thickness of 2.5 mm as well as a broad effective absorption bandwidth (EAB, RL ≤ 10 dB) of 6.8 GHz. The tunable EAB can be achieved at a frequency range of 8.5 to 18 GHz by modifying the thickness of the absorber from 1.5 to 3 mm. The excellent absorption capacity of electromagnetic wave is attributed to the synergetic effects between the multiple loss mechanisms of rGO/Nb2CTx/Fe3O4 and good impedance matching. The results provide new insight into MXene-based absorbers with enhanced ability to absorb electromagnetic wave by incorporating the magnetic components and 2D rGO sheets.

KW - Electromagnetic wave absorption

KW - Hierarchical architecture

KW - MXene

KW - rGO/NbCT/FeO composite

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