Integration of Multiple Heterointerfaces in a Hierarchical 0D@2D@1D Structure for Lightweight, Flexible, and Hydrophobic Multifunctional Electromagnetic Protective Fabrics

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

Published: Aug. 25, 2023

The development of wearable multifunctional electromagnetic protective fabrics with multifunctional, low cost, and high efficiency remains a challenge. Here, inspired by the unique flower branch shape "Thunberg's meadowsweet" in nature, nanofibrous composite membrane hierarchical structure was constructed. Integrating sophisticated 0D@2D@1D structures multiple heterointerfaces can fully unleash application potential membrane. targeted induction method used to precisely regulate formation site morphology metal-organic framework precursor, intelligently integrate heterostructures enhance dielectric polarization, which improves impedance matching loss mechanisms wave absorbing materials. Due synergistic enhancement electrospinning-derived carbon nanofiber "stems", MOF-derived nanosheet "petals" transition metal selenide nano-particle "stamens", CoxSey/NiSe@CNSs@CNFs (CNCC) obtains minimum reflection value (RLmin) -68.40 dB at 2.6 mm maximum effective absorption bandwidth (EAB) 8.88 GHz thin thickness 2.0 filling amount only 5 wt%. In addition, multi-component heterostructure endow fibrous excellent flexibility, water resistance, thermal management, other properties. This work provides perspectives for precise design rational fabrics.

Language: Английский

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Nitrogen-Doped Magnetic-Dielectric-Carbon Aerogel for High-Efficiency Electromagnetic Wave Absorption

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 17, 2023

Abstract Carbon-based aerogels derived from biomass chitosan are encountering a flourishing moment in electromagnetic protection on account of lightweight, controllable fabrication and versatility. Nevertheless, developing facile construction method component design with carbon-based for high-efficiency wave absorption (EWA) materials broad effective bandwidth (EAB) strong yet hits some snags. Herein, the nitrogen-doped magnetic-dielectric-carbon aerogel was obtained via ice template followed by carbonization treatment, homogeneous abundant nickel (Ni) manganese oxide (MnO) particles situ grew carbon aerogels. Thanks to optimization impedance matching dielectric/magnetic components aerogels, (Ni/MnO-CA) suggests praiseworthy EWA performance, an ultra-wide EAB 7.36 GHz minimum reflection loss (RL min ) − 64.09 dB, while achieving specific 253.32 dB mm −1 . Furthermore, reveals excellent radar stealth, infrared thermal management capabilities. Hence, high-performance, easy fabricated multifunctional nickel/manganese oxide/carbon have application aspects protection, electronic devices aerospace.

Language: Английский

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CNT cluster arrays grown on carbon fiber for excellent green EMI shielding and microwave absorbing

Carbon, Journal Year: 2023, Volume and Issue: 211, P. 118083 - 118083

Published: May 10, 2023

Language: Английский

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Construct of CoZnO/CSP biomass-derived carbon composites with broad effective absorption bandwidth of 7.2 GHz and excellent microwave absorption performance

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 639, P. 160 - 170

Published: Feb. 15, 2023

Language: Английский

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MXene@Co hollow spheres structure boosts interfacial polarization for broadband electromagnetic wave absorption

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 176, P. 167 - 175

Published: Sept. 13, 2023

Language: Английский

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Compositional and Hollow Engineering of Silicon Carbide/Carbon Microspheres as High-Performance Microwave Absorbing Materials with Good Environmental Tolerance

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: April 2, 2024

Abstract Microwave absorbing materials (MAMs) characterized by high absorption efficiency and good environmental tolerance are highly desirable in practical applications. Both silicon carbide carbon considered as stable MAMs under some rigorous conditions, while their composites still fail to produce satisfactory microwave performance regardless of the improvements compared with individuals. Herein, we have successfully implemented compositional structural engineering fabricate hollow SiC/C microspheres controllable composition. The simultaneous modulation on dielectric properties impedance matching can be easily achieved change composition these composites. formation structure not only favors lightweight feature, but also generates considerable contribution attenuation capacity. With synergistic effect structure, optimized composite exhibits excellent performance, whose strongest reflection loss intensity broadest effective reach − 60.8 dB 5.1 GHz, respectively, its actually superior those most previous studies. In addition, stability tests capacity after exposure harsh conditions Radar Cross Section simulation data demonstrate that from optimization a bright prospect

Language: Английский

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A “Win–Win” Strategy to Modify Co/C Foam with Carbon Microspheres for Enhanced Dielectric Loss and Microwave Absorption Characteristics

Small, Journal Year: 2023, Volume and Issue: 19(48)

Published: Aug. 1, 2023

3D carbon foams have demonstrated their superiority in the field of microwave absorption recently, but preparation processes traditional graphene are complicated, while some novel usually suffer from inadequate dielectric property. Herein, a simple "win-win" strategy is to synchronously realize construction Co/C foam and its surface decoration with microspheres. Therein, host guest microspheres interact each other, resulting improvement dispersity Co nanoparticles. The bilaterally synergistic effect can effectively enhance interfacial polarization conductive loss these obtained samples. Electromagnetic analysis reveals that optimized sample moderate microsphere content (about 33.5 wt%) displays widened maximum effective bandwidth 5.2 GHz consolidated reflection intensity -67.6 dB. Besides, enhancement mechanisms investigated discussed detail. It believed this work provides valuable ideas for development 3D-foam-based absorbing materials practical applications.

Language: Английский

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Synthesis of polymer-derived N,O-doped bowl-like hollow carbon microspheres for improved electromagnetic wave absorption using controlled template pyrolysis

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 463, P. 142398 - 142398

Published: March 13, 2023

Language: Английский

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Lightweight chitosan-derived carbon/rGO aerogels loaded with hollow Co1-Ni O nanocubes for superior electromagnetic wave absorption and heat insulation

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 457, P. 141325 - 141325

Published: Jan. 4, 2023

Language: Английский

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Synthesis of hollow ZnFe2O4/residual carbon from coal gasification fine slag composites for multiband electromagnetic wave absorption

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 952, P. 170016 - 170016

Published: April 7, 2023

Language: Английский

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