Nano-Micro Letters, Volume. 16, Issue 1, 212(2024)
Enhancing Low-Frequency Microwave Absorption Through Structural Polarization Modulation of MXenes
Two-dimensional carbon-based materials have shown promising electromagnetic wave absorption capabilities in mid- and high-frequency ranges, but face challenges in low-frequency absorption due to limited control over polarization response mechanisms and ambiguous resonance behavior. In this study, we propose a novel approach to enhance absorption efficiency in aligned three-dimensional (3D) MXene/CNF (cellulose nanofibers) cavities by modifying polarization properties and manipulating resonance response in the 3D MXene architecture. This controlled polarization mechanism results in a significant shift of the main absorption region from the X-band to the S-band, leading to a remarkable reflection loss value of - 47.9 dB in the low-frequency range. Furthermore, our findings revealed the importance of the oriented electromagnetic coupling in influencing electromagnetic response and microwave absorption properties. The present study inspired us to develop a generic strategy for low-frequency tuned absorption in the absence of magnetic element participation, while orientation-induced polarization and the derived magnetic resonance coupling are the key controlling factors of the method.
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Bo Shan, Yang Wang, Xinyi Ji, Yi Huang. Enhancing Low-Frequency Microwave Absorption Through Structural Polarization Modulation of MXenes[J]. Nano-Micro Letters, 2024, 16(1): 212
Category: Research Articles
Received: Mar. 7, 2024
Accepted: May. 1, 2024
Published Online: Jan. 23, 2025
The Author Email: Ji Xinyi (xyji06@nankai.edu.cn), Huang Yi (yihuang@nankai.edu.cn)