Multi-scale structural design of multilayer magnetic composite materials for ultra-wideband microwave absorption

Carbon, Journal Year: 2024, Volume and Issue: 230, P. 119604 - 119604

Published: Sept. 3, 2024

Language: Английский

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Fabrication of MXene-encapsulated Co@C nanoparticles for efficient microwave absorption in the X-band

Carbon, Journal Year: 2024, Volume and Issue: 230, P. 119628 - 119628

Published: Sept. 12, 2024

Language: Английский

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MXene/cobalt ferrite/carbon materials based composites for efficient microwave absorption

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 320, P. 129448 - 129448

Published: May 8, 2024

Language: Английский

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Template-Sacrificing Synthesis of Hollow Co@C Nanorods for Excellent Microwave Absorption

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 699, P. 134610 - 134610

Published: Oct. 1, 2024

Language: Английский

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Polypyrrole modified MIL-101-Fe-derived Fe/Fe3O4@C composites for high-performance microwave absorber

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 31, P. 2961 - 2971

Published: July 1, 2024

Carbon-based microwave absorbing composites with magnetic-dielectric properties and multiple loss mechanism are considered to be an effective choice for solving electromagnetic pollution. In this paper, the PPy/Fe/Fe3O4@C composite was synthesized from MIL-101-Fe derivatives subsequently coated polypyrrole (PPy) by combining hydrothermal, high-temperature pyrolysis oxidative polymerization. The effects of temperature PPy loading on components, microstructures parameters were investigated. results showed that consisted two-dimensional carbon flakes modified magnetic particles laminated conductive polymers. When is moderate, reaches a minimum reflection (RLmin) −61.38 dB at 3.1 mm thickness absorption bandwidth (EAB) 5.81 GHz 2.2 mm. After pyrolysis, unique three-dimensional structure sheet stacking, as well heterogeneous interface networks generated modification Fe Fe3O4 PPy, beneficial improve dielectric losses optimize impedance matching. These polymer-modified have potential development application in absorption.

Language: Английский

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Synthesis of a Leaf-Like Co/C Nanosheet for Efficient Microwave Absorption

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Elaborate engineering of the microstructure electromagnetic (EM) absorption materials affords infinite potential for achieving superior EM wave performance. In this work, a leaf-like Co/C nanosheet was rationally fabricated by facile pyrolysis CoZn-based zeolitic imidazolate framework-L (Co/Zn-ZIF-L) precursor. Herein, Co nanoparticles (NPs) are uniformly confined in porous carbon matrix, forming attractive heterostructures. A suitable 2D morphology and binary components endow composite with impedance matching synergetic losses excellent microwave radar stealth When filler content is as low 25 wt %, strong intensity −47.6 dB reached at thickness 2.1 mm, broad effective bandwidth 4.9 GHz achieved only 1.6 mm. At detection theta 0°, maximum cross-sectional (RCS) reduction value reaches 17.9 dB·m2. Hence, it expected that exhibits significant advantages field stealth, which paves way future exploration high-performance materials.

Language: Английский

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Progress of peanut shell lignin-based multilayer graphene-like carbon nanosheets as novel electrochemical materials: A review

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 307, P. 142196 - 142196

Published: March 20, 2025

Language: Английский

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Radar-stealth and thermal-insulating MOF-derived cellulose-carbon aerogels for broadband electromagnetic wave absorption

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111065 - 111065

Published: April 1, 2025

Language: Английский

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Fabrication of 3D Fe0.64Ni0.36-CNTs/Carbon foam hybrid composites for strong wideband electromagnetic wave absorption at thin thickness

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Microwave-Infrared Compatible Camouflage by MXene-Based Composite Aerogels via Synergistic Electromagnetic, Emissivity, and Thermal Regulation

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

Published: May 15, 2025

The advancement of multispectral surveillance technologies has rendered conventional single-band camouflage materials ineffective, driving an urgent demand for multispectral-compatible stealth materials. Herein, we report a multidimensional MXene-based composite aerogel engineered via cost-effective lyophilization radar-infrared compatible camouflage. As building blocks, few-layer Ti3C2Tx MXene nanosheets functionalized with NiB alloy nanoparticles and thermoresponsive VO2 phase-change are cross-linked by poly(vinyl alcohol) to construct the MXene/NiB/VO2 through one-step cryo-assembly. demonstrates remarkable performance. thermal radiation temperature heated target is reduced from 180 55 °C. In addition, minimum reflection loss (RLmin) -54.7 dB effective absorption bandwidth 7.1 GHz (8.8-15.9 GHz) at ultralow low density 19 mg·cm-3 been achieved. These breakthroughs stem synergistic mechanisms: infrared emissivity, suppressed conduction, dynamic regulation phase transition, multimodal electromagnetic dissipation. This work establishes material design paradigm reconcile infrared-microwave spectral incompatibilities heterostructure engineering, providing roadmap next-generation adaptive technologies.

Language: Английский

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