Two-phase magnetic nanospheres with magnetic coupling effect encapsulated in porous carbon to achieve lightweight and efficient microwave absorbers

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 671, С. 56 - 66

Опубликована: Май 22, 2024

Язык: Английский

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Integrated design of multifunctional lightweight magnetic cellulose-based aerogel with 1D/2D/3D hierarchical network for efficient microwave absorption

Composites Communications, Год журнала: 2024, Номер 49, С. 101987 - 101987

Опубликована: Июль 6, 2024

Язык: Английский

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Heterostructured MXene/Ni Composites for Tunable Electromagnetic Wave Absorption

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(9), С. 10860 - 10869

Опубликована: Апрель 25, 2024

Designing an absorber to mitigate the electromagnetic radiation pollution caused by rapid development of radio technology with multiple characteristics, including high reflection loss (RL), broad absorption bandwidth, thinness, and low filling ratio, is crucial but challenging. This work prepared three-dimensional heterogeneous MXene/Ni composites using electrostatic self-assembly method. Due synergistic effect dielectric loss, magnetic unique structure, obtained multilayer composites, a ratio 15 wt % thickness only 1.5 mm, achieved astonishing minimum RL value −79.6 dB effective bandwidth (EAB) 3.35 GHz. Furthermore, ultrawide tunable EAB 12.35 GHz could be in frequency range 3.30–15.65 adjusting matching samples. design interface structure provides practical strategy develop high-performance next-generation absorbers.

Язык: Английский

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MoS₂-Decorated Tubular Carbon Nanostructures with Enhanced Dielectric Loss for Boosting Microwave Absorption

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(14), С. 16075 - 16085

Опубликована: Июль 5, 2024

The construction of hierarchical structures has been demonstrated to be an effective method for achieving high-performance microwave absorption. In this study, a flower-like MoS2 nanosheet-coated tubular carbon composite with average diameter approximately 560 nm was synthesized via straightforward ion-exchange and pyrolysis strategy. growth nanosheets, the presence heterojunction surfaces, hollow structure collectively enhance dielectric loss material, thereby optimizing absorption properties material. C@MoS2 nanocomposite demonstrates minimum reflection −66.8 dB bandwidth 4.8 GHz when thickness is only 1.6 mm. This work presents synergistic strategy design layered structures.

Язык: Английский

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Cu9S5/coal gasification fine slag composites for electromagnetic wave absorption using compositional synergies and interface engineering strategies

Materials Research Bulletin, Год журнала: 2024, Номер 174, С. 112720 - 112720

Опубликована: Фев. 6, 2024

Язык: Английский

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Hollow Core–Shell Fe₃O₄@PPy Nanocomposites with Tunable Microwave Absorption Frequencies and High Reflection Loss

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(9), С. 10325 - 10337

Опубликована: Апрель 24, 2024

Core–shell structures are commonly employed in microwave absorption (MA) materials due to their distinctive interfacial architecture. In this study, ferroferric oxide@polypyrrole (Fe3O4@PPy) nanocomposites with hollow core–shell were successfully synthesized for MA using a solvothermal process, followed by situ polymerization. The minimum reflection loss (RLmin) frequency of the can be precisely controlled adjusting thickness PPy shell. thickening shell enhances conduction nanocomposites, thus, enhancing dielectric nanocomposites. fabricated FP-170, FP-180 and FP-190 exhibit remarkable properties at low frequencies, RLmin reaching −63.82 dB, −84.92 −71.25 dB 4.55 mm, 3.87 2.64 respectively. maximum effective bandwidth (EABmax) FP-170 extends 3.48 GHz 2.39 4.20 2.38 4.96 2.16 mm. FP-200 nanocomposite, which has 15 nm, exhibits exceptional radar stealth performance, Radar Cross-Section (RCS) values below −17.68 dB·m2 within range −90° 90°. Both simulation experimental results prove that structured Fe3O4@PPy nanocomposite is an excellent candidate applications.

Язык: Английский

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Construction of heterogeneous interfaces modulating dielectric loss in MOF-derived FeCoNi/C confined carbon aerogels as multifunctional microwave absorbers

Journal of Alloys and Compounds, Год журнала: 2024, Номер 996, С. 174764 - 174764

Опубликована: Май 8, 2024

Язык: Английский

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Enhancing strategies of MOFs-derived materials for microwave absorption: review and perspective

Advances in Colloid and Interface Science, Год журнала: 2025, Номер 338, С. 103412 - 103412

Опубликована: Янв. 27, 2025

Язык: Английский

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Constructing multi-layer heterogeneous interfaces in liquid metal graphite hybrid powder: Towards microwave absorption enhancement

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 677, С. 79 - 89

Опубликована: Июль 25, 2024

Язык: Английский

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Filter-paper-derived CF/M/C (M = Co, Ni, or Fe/Fe3O4) 2D interlinked frameworks toward ultrawide absorption bands, high thermal conductivity, and excellent electrical insulation

Chemical Engineering Journal, Год журнала: 2024, Номер 489, С. 151345 - 151345

Опубликована: Апрель 16, 2024

Язык: Английский

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