Materials Science and Engineering B, Год журнала: 2024, Номер 312, С. 117786 - 117786
Опубликована: Ноя. 22, 2024
Язык: Английский
Chemical Engineering Journal, Год журнала: 2023, Номер 480, С. 148188 - 148188
Опубликована: Дек. 25, 2023
Язык: Английский
Процитировано
46
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Июль 15, 2024
Abstract In order to ensure the operation and longevity of electronic devices, design multifunctional composites integrating microwave absorption (MA) thermal conduction has become key solving problem. However, superior MA properties conductivity are usually incompatible in blend system. this study, a modified carbon fiber/silicone rubber‐oriented structure is designed based on multiscale concept heterostructures with multiple interfaces. The forward deposition‐reverse growth mechanism utilized at microscopic level construct multi‐interfacial heterogeneous structures surface 1D fibers (CFs). magneto‐electric coupling network heterostructure induces interfacial polarization enhances heat transfer. Subsequently, structural CFs carried out macroscopic scale using ice template method. directionally aligned CFs/silicone rubber aerogel obtained by backfilling silicone (SR). samples achieved an effective bandwidth 4.41 GHz maximum reflection loss −42.29 dB ultra‐thin thickness (1.3 mm). sample improved 200% compared pure rubber. directional alignment have promising applications lightweight flexible packaging.
Язык: Английский
Процитировано
24
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 7, 2024
Abstract High‐performance microwave absorption materials (MAM) are often accompanied by synergistic effects of multiple loss mechanisms, but the contribution share various mechanisms has been neglected to provide a template and reference for design MAM. Here, highly conductive 2D structure is designed through functional group‐induced modulation strategy, composite L‐Ni@C can reach an effective bandwidth 6.45 GHz at 15% fill rate, with maximum efficiency 99.9999%. Through layer‐by‐layer analysis mechanism, it found that strong originates from polarization heterogeneous interface. The movement space charge between two‐phase interface forms interfacial electric field, in situ doping nitrogen cleverly achieved introduction amino groups, which significantly enhances rate transfer greatly facilitates electron migration polarization. motion law field also simulated using COMSOL simulation software illustrate mechanism interfaces. This work fills gap structural presents new theories into
Язык: Английский
Процитировано
19
Nature Communications, Год журнала: 2025, Номер 16(1)
Опубликована: Янв. 2, 2025
With the development of nanotechnology, nano-functional units different dimensions, morphologies, and sizes exhibit potential for efficient microwave absorption (MA) performance. However, multi-unit coupling enhancement mechanism triggered by alignment orientation has been neglected, hindering further absorbing materials (MAMs). In this paper, two typical ZIF-derived nanomaterials are self-assembled into two-dimensional ordered polyhedral superstructures simple ice template method. The distinctive dielectric-sensitive behaviors after self-assembling arrays. modified 2D not only inherit atomic-level doping well-designed shell structure, but also amplify loss properties to realize multi-scale modulated MA response. Satisfactory performance in C, X Ku bands is finally achieved. particular, ultra-broadband bandwidth (EAB) 6.41 GHz realized at 1.82 mm thickness. Our work demonstrates array-induced multiscale polarization behavior, providing a direction fully utilize wave-absorbing functional units. This delves effects nano-units arrays on electromagnetic shielding. Polyhedral allow good X, bands, with
Язык: Английский
Процитировано
5
Journal of Material Science and Technology, Год журнала: 2024, Номер 201, С. 187 - 196
Опубликована: Апрель 8, 2024
Язык: Английский
Процитировано
15
Composites Part B Engineering, Год журнала: 2024, Номер 287, С. 111882 - 111882
Опубликована: Окт. 9, 2024
Язык: Английский
Процитировано
10
Carbon, Год журнала: 2024, Номер unknown, С. 119684 - 119684
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
9
Carbon, Год журнала: 2024, Номер unknown, С. 119874 - 119874
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
9
Small, Год журнала: 2024, Номер unknown
Опубликована: Дек. 23, 2024
Carbon nanotubes (CNTs) show great promise for microwave absorption (MA) due to their excellent electrical conductivity and lightweight properties, which are conferred by the one dimensional hollow tubular structure. However, ambiguous intrinsic motivations behind formation of CNTs intricate growth processes have resulted in a lack systematic methodology precisely controlling electromagnetic properties. Herein, flexible regulation strategy is designed develop, with core focus being directional carbon atoms differential catalysis metal sources. By improving kinetics, material achieves effective impedance matching attenuation, displaying notable magnetoelectric coupling effects. In particular, COMSOL simulations reveal enhanced dielectric loss contributing efficient energy conversion. Ultimately, demonstrates minimum reflection (RL
Язык: Английский
Процитировано
6
Ceramics International, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0