Carbon, Год журнала: 2023, Номер 215, С. 118462 - 118462
Опубликована: Сен. 21, 2023
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Фев. 28, 2024
Abstract Rational manipulation of composition and microstructure design is recognized as an effective pathway to realize multifunctional high‐performance microwave absorber. In this work, necklace‐like hollow polyacrylonitrile (PAN)/carbon nanofibers are designed constructed through a simple continuous electrospinning‐carbonization‐etching route. Specifically, by varying the carbonization temperature, ratio PAN carbon content PAN/carbon can be effectively regulated, resulting in tunable electromagnetic parameters conductive loss capacities. After that, structure further introduced improve feature lightweight, impedance‐matching characteristics, interfacial polarization ability. Accordingly, exhibited frequency bandwidth 6.60 GHz minimum reflection −44.73 dB at 1.76 mm. Both experimental theoretical simulation results indicated that obtained possessed high chemical stability excellent absorbing performance, endowing them candidates for absorbers extreme conditions. Therefore, findings not only offered rationally manipulate but also provided novel technique make most engineering strengthening interface loss.
Язык: Английский
Процитировано
167
Carbon, Год журнала: 2024, Номер 226, С. 119233 - 119233
Опубликована: Май 11, 2024
Язык: Английский
Процитировано
104
Carbon, Год журнала: 2024, Номер 219, С. 118834 - 118834
Опубликована: Янв. 18, 2024
Язык: Английский
Процитировано
97
Nano Research, Год журнала: 2023, Номер 17(3), С. 927 - 938
Опубликована: Ноя. 30, 2023
Язык: Английский
Процитировано
93
Composites Part B Engineering, Год журнала: 2024, Номер 275, С. 111344 - 111344
Опубликована: Фев. 24, 2024
Язык: Английский
Процитировано
62
Carbon, Год журнала: 2024, Номер 227, С. 119244 - 119244
Опубликована: Май 13, 2024
Electromagnetic waves constitute an essential element of societal progress, and the environmental impact resulting from using electromagnetic warrants significant considerations. Carbon materials have garnered considerable attention in functional domain owing to their remarkable electrical conductivity dielectric characteristics. Notably, spherical carbon materials, characterized by substantial specific surface area tunable properties, emerged as efficient additives for microwave absorbers. These excel absorbing energy while minimizing dissipation. When incorporated into absorbers varying compositions, sizes, morphologies, these spheres facilitate synergistic operation multiple loss mechanisms, containing conductive loss, magnetic polarization loss. This concerted action significantly enhances wave absorption performance. paper offers a comprehensive review advancements sphere-based designed waves. It also furnishes intricate exposition methodologies employed preparation meticulous analysis The summarizes microstructural attributes mechanisms governing various sphere configurations, considering factors such composition, morphology, size, structure. In conclusion, this study forecasts potentials nanomaterials realm waves, along with assessment forthcoming research focal points conceivable challenges.
Язык: Английский
Процитировано
57
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Фев. 5, 2024
Abstract The emergence and widespread adoption of fifth‐generation wireless technology in civilian sectors have advanced the information revolution, while simultaneously leading to a variety negative impacts. Foremost issues domain include electromagnetic (EM) pollution, interference, inefficient use EM energy. Despite growing global awareness, progress devising effective solutions is sluggish, underlining complexity these issues. delay addressing concerns arises from several factors, including considerable gap comprehensive understanding absence unified stance on critical Moreover, new challenges like interference energy inefficiency indicates clear need for innovative ideas approaches. Addressing extends beyond inherent properties absorbers, requiring combination tailored macro‐structural designs external field management solution. This situation emphasizes urgent diverse strategies creative thinking navigate posed by perspective underscores identified systematically proposes practical approaches each, aiming foster both conversation action this crucial area. insights provided are expected substantially aid confronting alleviating pressing concerns.
Язык: Английский
Процитировано
46
Small, Год журнала: 2024, Номер 20(20)
Опубликована: Янв. 11, 2024
Abstract This study addresses the challenge of designing simple and environmentally friendly methods for preparation effective electromagnetic wave (EMW) absorbing materials with tailored microstructures multi‐component regulation. N, O doped walnut‐like porous carbon composite microspheres loaded FeCo nanoparticles (WPCM/Fe–Co) are synthesized through high‐temperature carbonization combined soap‐free emulsion polymerization hydrothermal methods, avoiding use toxic solvents complex conditions. The incorporation magnetic components enhances loss, complementing dielectric loss to optimize EMW attenuation. unique morphology further improves impedance matching. proportions Fe Co can be adjusted regulate material's reflection thickness, bandwidth, allowing fine‐tuning absorption performance. At a low filling ratio (16.7%), optimal WPCM/Fe–Co composites exhibit minimum ( RL min ) −48.34 dB (10.33 GHz, 3.0 mm) an overall bandwidth (EAB) covering entire C bands, X Ku bands. work introduces novel approach composition regulation presents green synthesis method absorbers high‐performance at loading.
Язык: Английский
Процитировано
42
Materials Today Physics, Год журнала: 2024, Номер 42, С. 101383 - 101383
Опубликована: Март 1, 2024
Язык: Английский
Процитировано
40
Journal of Material Science and Technology, Год журнала: 2024, Номер 214, С. 37 - 52
Опубликована: Июль 14, 2024
Язык: Английский
Процитировано
40