Carbon, Год журнала: 2024, Номер unknown, С. 119973 - 119973
Опубликована: Дек. 1, 2024
Язык: Английский
Nano-Micro Letters, Год журнала: 2024, Номер 17(1)
Опубликована: Сен. 27, 2024
Abstract Currently, the demand for electromagnetic wave (EMW) absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent. Multi-component interface engineering considered an effective means to achieve high-efficiency EMW absorption. However, modulation has not been fully discussed great potential in field In this study, multi-component tin compound fiber composites based on carbon (CF) substrate were prepared by electrospinning, hydrothermal synthesis, high-temperature thermal reduction. By utilizing different properties substances, rich heterogeneous interfaces are constructed. This effectively promotes charge transfer enhances interfacial polarization conduction loss. The SnS/SnS 2 /SnO /CF abundant have exhibit excellent absorption at a loading 50 wt% epoxy resin. minimum reflection loss (RL) − 46.74 dB maximum bandwidth 5.28 GHz. Moreover, composite coatings exhibited long-term corrosion resistance Q235 steel surfaces. Therefore, study provides strategy design complex environments.
Язык: Английский
Процитировано
55
Journal of Material Science and Technology, Год журнала: 2024, Номер unknown
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
28
Small Structures, Год журнала: 2025, Номер unknown
Опубликована: Янв. 26, 2025
Carbon nanofibers (CNFs) exhibit inherent dielectric properties that enhance electromagnetic (EM) wave absorption, yet challenges exist in expanding their effective absorption bandwidth (EAB) and improving flexibility. Many studies fail to adequately consider how structural factors influence performance when combining CNFs with magnetic materials. To address these issues, a 1D carbon nanocomposite is developed by embedding oxide nanoparticles within using simple electrospinning technique. This approach improves membrane flexibility disrupting rigid alignment introducing dynamic interactions, while also creating defect‐rich interfaces increase the amorphous content (61%) of CNFsF composite, leading improved EM absorption. The unique macro/mesoporous morphology provides internal heterogeneous boundaries effectively trap dissipate waves. As result, flexible CNF composites demonstrate significant performance, achieving minimum reflection loss (RL min ) −39.8 dB at 4.64 GHz an abroad EAB up 7 only 2.5 mm thickness. Computer simulation technology (CST) simulations indicate maximum radar cross‐section reduction 21.1 m 2 , highlighting material's stealth capability. research advances development high‐performance materials offers new strategies for enhancing through composite engineering.
Язык: Английский
Процитировано
1
Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156254 - 156254
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
5
Composites Communications, Год журнала: 2025, Номер unknown, С. 102328 - 102328
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Composites Part B Engineering, Год журнала: 2025, Номер unknown, С. 112407 - 112407
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Nanomaterials, Год журнала: 2025, Номер 15(7), С. 553 - 553
Опубликована: Апрель 4, 2025
The widespread use of electronic devices in daily life, industry and military has led to a large amount electromagnetic pollution, which become an increasingly serious security issue. To eliminate or mitigate such risks hazards, various advanced microwave absorption technologies materials have been reported. As new type absorber, biomass-derived carbon-based received extensive attention. They the characteristics low cost, easy preparation, high porosity environmental friendliness while retaining advantageous adjustable dielectric properties, conductivity good stability traditional carbon materials. development biomass microwave-absorbing not only provides idea for solving radiation but also helps create environmentally friendly harmonious environment. Herein, (MAMs) including plant shells, fibers other potential are generalized discussed their preparation technology, microstructure design so on. two critical factors affecting impedance matching attenuation characteristics, analyzed detail. Finally, confronting challenges future prospects biomass-based pointed out.
Язык: Английский
Процитировано
0
Journal of Material Science and Technology, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
The Journal of Chemical Physics, Год журнала: 2025, Номер 162(16)
Опубликована: Апрель 23, 2025
With the increasing demand for flexible microwave-absorbing materials (MAMs), it is necessary to ensure a continuous network of MAM fillers. However, still great challenge achieve uniform loading magnetic nanoparticles because uncertain reaction sites graphene. For this research, we adopted high-pressure homogenization strategy realize distribution Co on graphene surface via polyethyleneimine (PEI) modification. Transferring from randomly distributed oxygen functional groups uniformly PEI molecules, homogeneous oxide (GO)/PEI/Co (GP/Co) dispersion ensured form reduced (RGO)/PEI/Co (RGP/Co) after reduction. RGP/Co-2 achieved an effective absorption −51.9 dB in C band and microwave bandwidth 5.84 GHz. In addition, was filled into polyacrylamide/polyvinyl alcohol (PAM/PVA) hydrogel construct structure, RGP/Co-2/PAM/PVA MAMs were prepared. The minimum reflection loss (RLmin) −41.5 under thickness 2.5 mm shows excellent mechanical flexibility. exhibited sensing performance. This research supplied new perspective development electronics.
Язык: Английский
Процитировано
0
Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер unknown, С. 135396 - 135396
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
3