Nano Research, Год журнала: 2023, Номер 16(7), С. 9591 - 9601
Опубликована: Май 30, 2023
Язык: Английский
Advanced Composites and Hybrid Materials, Год журнала: 2022, Номер 6(1)
Опубликована: Дек. 29, 2022
Язык: Английский
Процитировано
156
Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Май 28, 2023
Although multifunctional aerogels are expected to be used in applications such as portable electronic devices, it is still a great challenge confer multifunctionality while maintaining their inherent microstructure. Herein, simple method proposed prepare NiCo/C with excellent electromagnetic wave absorption properties, superhydrophobicity, and self-cleaning by water-induced NiCo-MOF self-assembly. Specifically, the impedance matching of three-dimensional (3D) structure interfacial polarization provided CoNi/C well defect-induced dipole primary contributors broadband absorption. As result, prepared have width 6.22 GHz at 1.9 mm. Due presence hydrophobic functional groups, improve stability humid environments obtain hydrophobicity large contact angles > 140°. This aerogel has promising absorption, resistance water or environments.
Язык: Английский
Процитировано
135
Journal of Colloid and Interface Science, Год журнала: 2023, Номер 651, С. 494 - 503
Опубликована: Авг. 7, 2023
Язык: Английский
Процитировано
133
Carbon, Год журнала: 2023, Номер 208, С. 1 - 9
Опубликована: Март 9, 2023
Язык: Английский
Процитировано
128
Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Авг. 25, 2023
The development of wearable multifunctional electromagnetic protective fabrics with multifunctional, low cost, and high efficiency remains a challenge. Here, inspired by the unique flower branch shape "Thunberg's meadowsweet" in nature, nanofibrous composite membrane hierarchical structure was constructed. Integrating sophisticated 0D@2D@1D structures multiple heterointerfaces can fully unleash application potential membrane. targeted induction method used to precisely regulate formation site morphology metal-organic framework precursor, intelligently integrate heterostructures enhance dielectric polarization, which improves impedance matching loss mechanisms wave absorbing materials. Due synergistic enhancement electrospinning-derived carbon nanofiber "stems", MOF-derived nanosheet "petals" transition metal selenide nano-particle "stamens", CoxSey/NiSe@CNSs@CNFs (CNCC) obtains minimum reflection value (RLmin) -68.40 dB at 2.6 mm maximum effective absorption bandwidth (EAB) 8.88 GHz thin thickness 2.0 filling amount only 5 wt%. In addition, multi-component heterostructure endow fibrous excellent flexibility, water resistance, thermal management, other properties. This work provides perspectives for precise design rational fabrics.
Язык: Английский
Процитировано
120
Carbon, Год журнала: 2023, Номер 208, С. 390 - 409
Опубликована: Апрель 5, 2023
Язык: Английский
Процитировано
101
Nano Research, Год журнала: 2023, Номер 16(7), С. 10666 - 10677
Опубликована: Апрель 29, 2023
Язык: Английский
Процитировано
95
Carbon, Год журнала: 2024, Номер 221, С. 118925 - 118925
Опубликована: Фев. 10, 2024
Язык: Английский
Процитировано
91
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Март 25, 2024
Abstract Defects and microstructures have been utilized to effectively modulate electromagnetic (EM) wave absorption for mitigating pollution stealth issues. However, precisely feasibly tailoring them still remains challenging. Here, by using a multilevel hollow cobalt sulfide embedded in heteroatomic sulfur (S) ‐doped carbon aerogel, preferential reaction strategy of modulating point defects via controllable S atoms migration is proposed improve the EM absorption. contribute creation structures Kirkendall effects, as well inducing lattice through doping. More significantly, mechanisms prioritizing formation over discovered, with low‐velocity atomic primarily microstructure interfacial polarization impedance matching, high‐velocity atom focused on introducing achieve conductive loss. The resulting aerogel exhibits an exceptionally maximum reflection loss −52.82 dB effective bandwidth 8.82 GHz, which far exceeds most currently reported materials. Experimental theoretical approaches, including microwave heating, Tesla interaction, first principles, far‐field simulation, are comprehensively employed verify its effect mechanism. Furthermore, combination excellent infrared self‐cleaning properties opens up potential applications complex environments.
Язык: Английский
Процитировано
91
Advanced Functional Materials, Год журнала: 2023, Номер 33(49)
Опубликована: Июль 20, 2023
Abstract Intelligent electromagnetic wave absorbers (IEAs) are in high demand due to their dynamic parameters that can adapt the complex and volatile application environments of current 5G era. Despite this, there is currently a lack research on convertible (EMW) absorption mode (switching between wave‐absorption wave‐transmission) integrated design with external physical stimulations, so device will realize intelligent switching any conditions. In this work, V 2 C‐VO (M) heterostructure exhibits reversible metal–insulator transition at temperature 62 °C fabricated via oxidation MXene. The heterostructures demonstrate near wave‐transmission characteristics 25 while behavior wide effective bandwidth (4.04 GHz) 70 °C. VO stronger intrinsic conductivity after phase transition, “on‐off” C lead poor/strong local conductive network interfacial polarization 25/70 °C, thus creating “quantized” dielectric loss. Furthermore, multilayered functional developed facilitate absorber's voltage 17.5 V. This work presents promising opportunities for various applications, including radar stealth, portable stealth suits, signal regulation, deicing.
Язык: Английский
Процитировано
89