Broadband multispectral compatible absorbers for radar, infrared and visible stealth application

Progress in Materials Science, Journal Year: 2023, Volume and Issue: 135, P. 101088 - 101088

Published: Feb. 4, 2023

Language: Английский

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Multiphase Molybdenum Carbide Doped Carbon Hollow Sphere Engineering: The Superiority of Unique Double‐Shell Structure in Microwave Absorption

Small, Journal Year: 2022, Volume and Issue: 19(6)

Published: Nov. 27, 2022

In order to achieve excellent electromagnetic wave (EMW) absorption properties, the microstructure design and component control of absorber are critical. this study, three different structures made Mo2 C/C hollow spheres prepared their microwave behavior is investigated. The double-shell consisting an outer thin shell inner rough thick with multiple EMW loss mechanisms exhibit good properties. further improve MoC1-x /C crystalline phases molybdenum carbide optimize capability materials. Finally, α-phase have best When filling 20 wt.%, minimum reflection at 1.8 mm -50.55 dB effective bandwidth 2 5.36 GHz, which expected be a characteristics "thin, light, wide, strong".

Language: Английский

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Excellent microwave absorption performance of LaFeO3/Fe3O4/C perovskite composites with optimized structure and impedance matching

Carbon, Journal Year: 2023, Volume and Issue: 213, P. 118200 - 118200

Published: June 7, 2023

Language: Английский

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MOF-derived Ni-Co bimetal/porous carbon composites as electromagnetic wave absorber

Advanced Composites and Hybrid Materials, Journal Year: 2022, Volume and Issue: 6(1)

Published: Dec. 29, 2022

Language: Английский

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Liquid‐Metal‐Assisted Programmed Galvanic Engineering of Core–shell Nanohybrids for Microwave Absorption

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(34)

Published: May 17, 2023

Abstract Core–shell nanostructures have received widespread attention because of their potential usage in various technological and scientific fields. However, they still face significant challenges terms fabrication core–shell nanostructure libraries on a controlled, even programmed scale. This study proposes general approach to systematically fabricate nanohybrids using liquid‐metal Ga alloys as reconfigurable templates, the initiation local galvanic replacement reaction is demonstrated utilizing an ultrasonic system. Under agitation, hydrated gallium oxides generated liquid metal droplets, simultaneously delaminated themselves from interfaces. Subsequently, single‐metal or bimetallic components are deposited fresh smooth Ga‐based via reactions form unique metal/metal nanohybrids. Controlled quantitative regulation diversity non‐homogeneous nanoparticle shell layer composition achieved. The obtained used efficient microwave absorbers dissipate unwanted electromagnetic wave pollution. effective absorption bands (90% absorption) GaNi GaCoNi 3.92 3.8 GHz at thickness 1.4 mm, respectively. advanced strategy enables growth other sulfides by spontaneous interfacial redox for functional materials future.

Language: Английский

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Construction of Self-Assembly Based Tunable Absorber: Lightweight, Hydrophobic and Self-Cleaning Properties

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: May 28, 2023

Although multifunctional aerogels are expected to be used in applications such as portable electronic devices, it is still a great challenge confer multifunctionality while maintaining their inherent microstructure. Herein, simple method proposed prepare NiCo/C with excellent electromagnetic wave absorption properties, superhydrophobicity, and self-cleaning by water-induced NiCo-MOF self-assembly. Specifically, the impedance matching of three-dimensional (3D) structure interfacial polarization provided CoNi/C well defect-induced dipole primary contributors broadband absorption. As result, prepared have width 6.22 GHz at 1.9 mm. Due presence hydrophobic functional groups, improve stability humid environments obtain hydrophobicity large contact angles > 140°. This aerogel has promising absorption, resistance water or environments.

Language: Английский

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Constructing mixed-dimensional lightweight flexible carbon foam/carbon nanotubes-based heterostructures: An effective strategy to achieve tunable and boosted microwave absorption

Carbon, Journal Year: 2023, Volume and Issue: 206, P. 364 - 374

Published: Feb. 25, 2023

Language: Английский

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Core–shell Ni3Sn2@C particles anchored on 3D N-doped porous carbon skeleton for modulated electromagnetic wave absorption

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 158, P. 242 - 252

Published: March 29, 2023

Language: Английский

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Constructing two-dimensional/two-dimensional reduced graphene oxide/MoX2 (X = Se and S) van der Waals heterojunctions: a combined composition modulation and interface engineering strategy for microwave absorption

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(6)

Published: Nov. 24, 2023

Language: Английский

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Dual-pathway optimization on microwave absorption characteristics of core–shell Fe3O4@C microcapsules: Composition regulation on magnetic core and MoS2 nanosheets growth on carbon shell

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 461, P. 141867 - 141867

Published: Feb. 13, 2023

Language: Английский

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