Interfacical polarization dominant rGO aerogel decorated with molybdenum sulfide towards lightweight and high-performance electromagnetic wave absorber

Carbon, Journal Year: 2024, Volume and Issue: unknown, P. 119738 - 119738

Published: Oct. 1, 2024

Language: Английский

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Electromagnetic Wave Absorbing Properties of Flexible Thermal Conductive ZnO@FeSiAl Silicone Rubber

Materials Today Nano, Journal Year: 2025, Volume and Issue: unknown, P. 100587 - 100587

Published: Feb. 1, 2025

Language: Английский

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Plasma‐Induced Geometry Engineering in High‐Entropy Oxide Composites for Superior Electromagnetic Absorption

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Abstract The dielectric and magnetic coexistence behavior of high entropy oxides (HEOs) injects infinite dynamism in promoting electromagnetic wave (EMW) absorption, but precisely constructing their regular geometries at the nanoscale remains challenging. Herein, controlled preparation reduced graphite oxide loaded (CoFeNiCuMn)O with various by a rapid plasma process is reported. Modifying only metal content precursor can effectively influence morphology properties resulting derivatives, achieving well‐matched impedance ensuring outstanding absorption performance. results show that truncated octahedral HEO/RGO composite exhibits strongest absorbing capacity, minimum reflection loss −57 dB 14.1 GHz corresponding effective bandwidth covering 4.13 GHz. Moreover, constitutive relationship between multi‐element synergies microwave characteristics systematically explored, mechanism proposed. Delayed wireless charging time simulated values RCS less than −10 dBm 2 whole detection angles further demonstrate its dissipation capability practical application scenarios. This study not enriches variety lightweight efficient materials also guides for new configuration design HEOs.

Language: Английский

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Two birds with one stone: Integrating multidimensional heterointerfaces with abundant nitrogen sites for ultrathin broadband microwave absorber

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161603 - 161603

Published: March 1, 2025

Language: Английский

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Electromagnetic wave absorption and enhanced mechanical properties of magnetic self-healing metal shell microcapsules filled polymer

Composites Science and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 110944 - 110944

Published: Oct. 1, 2024

Language: Английский

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Constructing Multiple Heterojunctions of Silver-Gallium-Gallium Oxide on Polyetherimide Microspheres for Lightweight and Efficient Microwave Absorption

Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102276 - 102276

Published: Jan. 1, 2025

Language: Английский

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Cross-Linked Polyurethane/Bimetallic MOF-Derived Composites with Electromagnetic Wave-Absorbing, Self-Healing, and Recyclable Capabilities

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

Published: Jan. 25, 2025

Language: Английский

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Ultrathin Terahertz-Wave Absorber Based on Inorganic Materials for 6G Wireless Communications

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

Published: Jan. 30, 2025

Terahertz waves are gathering attention as carrier for next-generation wireless communications such sixth-generation communication networks and autonomous driving systems. Electromagnetic-wave absorbers the terahertz-wave region necessary to ensure information security avoid interference issues. Herein we report a high-performance absorber composed of composite metallic λ-Ti3O5 insulating TiO2 nanocrystals (λ-Ti3O5@TiO2). This material exhibits strong absorption with high values real (permittivity, ε') imaginary parts (dielectric loss, ε″) complex dielectric constant. Furthermore, tan(δ) (≡ ε″/ε') significantly high, ranging from 0.50 0.76 in frequency range between 0.1 1 THz. An ultrathin film thickness 48 μm recorded reflection loss -28 dB (99.8% terahertz wave is absorbed by film). A small has yet be developed. Not only does present exhibit resistance heat, light, water, organic solvents, but it can also economically fabricated support various applications, including outdoor uses.

Language: Английский

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Co–Ni/C Composite Derived from N, S-Codoped Graphene Decorate Metal–Organic Framework toward Microwave Attenuation

Langmuir, Journal Year: 2025, Volume and Issue: 41(5), P. 3684 - 3694

Published: Jan. 31, 2025

Metal-organic frameworks (MOFs) exhibit highly adjustable porosity, structure, and versatility, properties that render them promising for electromagnetic wave (EMW) absorption applications. However, the impedance matching of these composites is poor in practical applications, thereby compromising their EMW performance. In this study, a novel absorbing composite was synthesized by solution-thermal method combined with subsequent pyrolysis process. Specifically, we introduced heteroatom (N S) codoped graphene (N, S-Gr) into Co-Ni MOF, forming N, S-Gr/CoNi/C. Graphene endowed abundant defect disorder sites through codoping nitrogen sulfur, which enhanced interfacial polarization dipole polarization. When nickel cobalt were added 1:1 ratio, minimum reflection loss (RLmin) S-Gr/Co-Ni/C reached -47.7 dB at 4.24 GHz, resultant material exhibited best properties. As result, considered to be an ideal candidate development effective absorbers.

Language: Английский

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Construct of flexible Fe3O4@VO2/Ti3C2Tx composite films with absorption-dominated and tunable terahertz electromagnetic shielding

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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