التفاصيل البيبلوغرافية
| العنوان: |
Multicomponent Nanoparticles Synergistic One-Dimensional Nanofibers as Heterostructure Absorbers for Tunable and Efficient Microwave Absorption. |
| المؤلفون: |
Wang, Chenxi, Liu, Yue, Jia, Zirui, Zhao, Wanru, Wu, Guanglei |
| المصدر: |
Nano-Micro Letters; 12/15/2022, Vol. 15 Issue 1, p1-16, 16p |
| مصطلحات موضوعية: |
ELECTROMAGNETIC wave absorption, RADIO technology equipment, COMPOSITE structures, IMPEDANCE matching, SPACE charge, CARBON nanofibers, NANOFIBERS |
| مستخلص: |
Highlights: Heterogeneous interface engineering is designed by electrospinning. The introduction of Co3SnC0.7 nanoparticles increased the loss mechanism. Enhanced electromagnetic loss and improved impedance matching are achieved. The absorbers exhibit high-efficient electromagnetic wave absorption performance. Application of novel radio technologies and equipment inevitably leads to electromagnetic pollution. One-dimensional polymer-based composite membrane structures have been shown to be an effective strategy to obtain high-performance microwave absorbers. Herein, we reported a one-dimensional N-doped carbon nanofibers material which encapsulated the hollow Co3SnC0.7 nanocubes in the fiber lumen by electrospinning. Space charge stacking formed between nanoparticles can be channeled by longitudinal fibrous structures. The dielectric constant of the fibers is highly related to the carbonization temperature, and the great impedance matching can be achieved by synergetic effect between Co3SnC0.7 and carbon network. At 800 °C, the necklace-like Co3SnC0.7/CNF with 5% low load achieves an excellent RL value of − 51.2 dB at 2.3 mm and the effective absorption bandwidth of 7.44 GHz with matching thickness of 2.5 mm. The multiple electromagnetic wave (EMW) reflections and interfacial polarization between the fibers and the fibers internal contribute a major effect to attenuating the EMW. These strategies for regulating electromagnetic performance can be expanded to other electromagnetic functional materials which facilitate the development of emerging absorbers. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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