Metal organic frameworks derived NixSey@NC hollow microspheres with modifiable composition and broadband microwave attenuation

Carbon, Journal Year: 2024, Volume and Issue: 226, P. 119215 - 119215

Published: May 4, 2024

Language: Английский

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Constructing Built-In Electric Fields with Semiconductor Junctions and Schottky Junctions Based on Mo–MXene/Mo–Metal Sulfides for Electromagnetic Response

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

Published: June 11, 2024

Abstract The exploration of novel multivariate heterostructures has emerged as a pivotal strategy for developing high-performance electromagnetic wave (EMW) absorption materials. However, the loss mechanism in traditional is relatively simple, guided by empirical observations, and not monotonous. In this work, we presented semiconductor–semiconductor–metal heterostructure system, Mo–MXene/Mo–metal sulfides (metal = Sn, Fe, Mn, Co, Ni, Zn, Cu), including semiconductor junctions Mott–Schottky junctions. By skillfully combining these distinct functional components (Mo–MXene, MoS 2 , metal sulfides), can engineer multiple heterogeneous interface with superior capabilities, broad effective bandwidths, ultrathin matching thickness. successful establishment gives rise to built-in electric field that intensifies electron transfer, confirmed density theory, which collaborates dielectric polarization mechanisms substantially amplify EMW absorption. We detailed synthesis series featuring both semiconductor–semiconductor semiconductor–metal interfaces. achievements were most pronounced Mo–MXene/Mo–Sn sulfide, achieved remarkable reflection values − 70.6 dB at thickness only 1.885 mm. Radar cross-section calculations indicate MXene/Mo–metal have tremendous potential practical military stealth technology. This work marks departure from conventional component design limitations presents pathway creation advanced MXene-based composites potent capabilities.

Language: Английский

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Recent development of metal-organic frameworks and their composites in electromagnetic wave absorption and shielding applications

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 332, P. 103271 - 103271

Published: Aug. 8, 2024

Language: Английский

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Multifunctional electromagnetic wave absorbing carbon fiber/Ti3C2TX MXene fabric with ultra-wide absorption band

Carbon, Journal Year: 2024, Volume and Issue: 230, P. 119594 - 119594

Published: Aug. 31, 2024

Language: Английский

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Low-Temperature Oxidation Induced Phase Evolution with Gradient Magnetic Heterointerfaces for Superior Electromagnetic Wave Absorption

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 22, 2024

Abstract Gradient magnetic heterointerfaces have injected infinite vitality in optimizing impedance matching, adjusting dielectric/magnetic resonance and promoting electromagnetic (EM) wave absorption, but still exist a significant challenging regulating local phase evolution. Herein, accordion-shaped Co/Co 3 O 4 @N-doped carbon nanosheets (Co/Co @NC) with gradient been fabricated via the cooperative high-temperature carbonization low-temperature oxidation process. The results indicate that surface epitaxial growth of crystal Co domains on nanoparticles realizes adjustment magnetic-heteroatomic components, which are beneficial for matching interfacial polarization. Moreover, simultaneously realize coupling, long-range diffraction. Specifically, synthesized @NC absorbents display strong attenuation capability − 53.5 dB at thickness 3.0 mm an effective absorption bandwidth 5.36 GHz, both superior to those single embedded matrix. This design concept provides us inspiration polarization, coupling absorption.

Language: Английский

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Synergistic dielectric regulation strategy of one-dimensional MoO2/Mo2C/C heterogeneous nanowires for electromagnetic wave absorption

Carbon, Journal Year: 2024, Volume and Issue: unknown, P. 119877 - 119877

Published: Dec. 1, 2024

Language: Английский

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Enhanced electromagnetic wave absorption of bacterial cellulose/ reduced graphene oxide aerogel by eco-friendly in-situ construction

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

Published: Aug. 26, 2024

Language: Английский

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Tailoring electromagnetic responsiveness of Tremella-like multi-dimensional heterostructures through a self-decomposition strategy

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157121 - 157121

Published: Oct. 1, 2024

Language: Английский

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Shell engineering afforded dielectric polarization prevails and impedance amelioration toward electromagnetic wave absorption enhancement in nested‐network carbon architecture

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 501, P. 157556 - 157556

Published: Nov. 16, 2024

Language: Английский

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Nitrogen-doped carbon nanotubes-locally-grown three-dimensional CeO2/C/Co foam enabling fabulous hydrophobicity, thermal insulation, and highly efficient microwave absorption

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160007 - 160007

Published: Jan. 1, 2025

Language: Английский

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