Enhanced Electromagnetic Wave Absorption of Bacterial Cellulose / Reduced Graphene Oxide Aerogel by Eco-Friendly In-Situ Construction DOI
Liang Yu, Jun Wang, Qilei Wu

et al.

Published: Jan. 1, 2024

Language: Английский

Fabrication of nitrogen-doped reduced graphene oxide/tricobalt tetraoxide composite aerogels with high efficiency, broadband microwave absorption, and good compression recovery performance DOI
Ruiwen Shu,

Lijuan Nie,

Xinyue Liu

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 190, P. 106 - 116

Published: Jan. 23, 2024

Language: Английский

Citations

94
Enhanced electromagnetic wave absorption of bacterial cellulose/ reduced graphene oxide aerogel by eco-friendly in-situ construction DOI
Yu Zhang, Jun Wang, Qilei Wu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 648 - 655

Published: Aug. 26, 2024

Language: Английский

Citations

30
Electrostatically fabricated heterostructure of interfacial-polarization-enhanced Fe3O4/C/MXene for ultra-wideband electromagnetic wave absorption DOI
Qingwei Li, Kai Nan, Wei Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 662, P. 796 - 806

Published: Feb. 18, 2024

Language: Английский

Citations

27
Combustion-Assisted construction of Defect-Enriched hierarchical carbon composites towards efficient Low-Frequency electromagnetic wave absorption DOI
Yongpeng Zhao, Qingxu He, Mengmeng Liu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150893 - 150893

Published: April 3, 2024

Language: Английский

Citations

24
Scalable fabrication of lightweight carbon nanotube aerogel composites for full X-band electromagnetic wave absorption DOI
Luon Tan Nguyen,

Chong Jin Goh,

Tianliang Bai

et al.

Carbon, Journal Year: 2024, Volume and Issue: 219, P. 118811 - 118811

Published: Jan. 10, 2024

Language: Английский

Citations

17
Two-phase magnetic nanospheres with magnetic coupling effect encapsulated in porous carbon to achieve lightweight and efficient microwave absorbers DOI
Nian Wang, Kai Nan, Hao Zheng

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 671, P. 56 - 66

Published: May 22, 2024

Language: Английский

Citations

16
Fabrication of Micro‐Mesopores on Spiral Carbon Nanocoils and Simultaneous Doping with Oxygen to Expand Microwave Absorption Bandwidth DOI

Xueqing Zuo,

Yifeng Zhang,

Jie Tian

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 6, 2024

Abstract The exceptional benefits of structural defects and doped atoms in carbon network regarding electromagnetic properties inspire the design advanced carbon‐based microwave absorption (MA) materials. However, excessive decline physical materials, especially their conductivity. Therefore, it is a great challenge to balance optimize conductive behavior for MA spiral nanocoil (CNC), with coexisting amorphous polycrystalline structures moderate conductivity, has significant but lacks pores atoms. Herein, parts relatively weak C─C bond energies are preferentially oxidized at 500 °C air atmosphere create combine O bodies CNCs. Furthermore, mechanism prioritizing formation doping over discovered. Benefiting from synergistic interplay dopants, O‐enriched porous CNCs demonstrate enhanced conduction polarization losses than pure CNCs, realizing wide effective bandwidth 7.3 GHz filling ratio only 3 wt.%. Theoretical calculations further support these experimental results. combination may serve as an pathway unlocking tunable dielectric

Language: Английский

Citations

12
Tunable 1D–2D Carbon Nanomaterials for Broadband and High-Performance Microwave Absorption via Ultrasonic Spray Ice Template DOI

Maoyu Yi,

Bo Liang,

Hang Xiao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Polymer-based one- and two-dimensional (1D-2D) carbon nanomaterials are considered promising microwave-absorbing materials (MAMs) due to their high atomic utilization efficiency tunable microscopic/macroscopic morphology. The design of 1D-2D through a facile method meet the requirements advanced MAMs remains challenge. In this work, environmentally friendly processing ultrasonic spray ice template (USIT) is employed fabricate porous based on Kapton-type polyimide, which exhibit intriguing morphology both 1D nanowires 2D nanosheets. Under subsequent carbonization at 700 800 °C, obtained inherit original Furthermore, or nanomorphology can be readily controlled by adjusting concentration precursor solution. For samples fabricated with lower concentrations (0.1%), nanowire structures predominant. Interconnected conductive networks heterogeneous interfaces formed intertwining stacking nanowires, thereby enhancing conductivity loss. Additionally, abundant structure provides an effective channel for electromagnetic wave entrance, significantly improving impedance matching ability. results show that nanowire-dominated (700 °C carbonization) excellent microwave absorption performance. reflection loss minimum (RLmin) -67.2 dB 8.1 GHz 4.65 mm, maximum bandwidth (<-10 dB) 7.7 3.03 mm. Exemplified MAMs, USIT strategy has broad prospects, providing enormous potential various practical applications bridging gap between polymer precursors 1D/2D nanomaterials.

Language: Английский

Citations

2
Multifunctional Carbon Foam with Nanoscale Chiral Magnetic Heterostructures for Broadband Microwave Absorption in Low Frequency DOI Creative Commons
Hao Zhang,

Kaili Kuang,

Yifeng Zhang

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 6, 2025

Abstract The construction of carbon nanocoil (CNC)-based chiral-dielectric-magnetic trinity composites is considered as a promising approach to achieve excellent low-frequency microwave absorption. However, it still challenging further enhance the low frequency absorption and elucidate related loss mechanisms. Herein, chiral CNCs are first synthesized on three-dimensional (3D) foam then combined with FeNi/NiFe 2 O 4 nanoparticles form novel foam. 3D porous CNC-carbon network provides impedance matching strong conduction loss. formation FeNi-carbon interfaces induces interfacial polarization loss, which confirmed by density functional theory calculations. Further permeability analysis micromagnetic simulation indicate that nanoscale magnetic heterostructures pinning coupling effects, anisotropy capability. Owing synergistic effect between dielectricity, chirality, magnetism, composite exhibits performance an ultrabroad effective bandwidth (EAB) 14 GHz minimum reflection less than − 50 dB. More importantly, C-band EAB extended GHz, achieving full coverage. This study guidelines for microstructure design broadband

Language: Английский

Citations

2
Achieving efficient electromagnetic absorption in multifunctional carbon nanotube aerogels by manipulating radialized network structure DOI
Zhixin Cai, Haibo Yang, Hongwei Zhou

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155629 - 155629

Published: Sept. 12, 2024

Language: Английский

Citations

7