| Autor: |
Jiaqi Tao, Linling Xu, Haoshan Jin, Yansong Gu, Jintang Zhou, Zhengjun Yao, Xuewei Tao, Ping Chen, Dinghui Wang, Zhong Li, Hongjing Wu |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Advanced Powder Materials, Vol 2, Iss 1, Pp 100091- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2772-834X |
| DOI: |
10.1016/j.apmate.2022.100091 |
| Popis: |
Regulating dielectric genes of hollow metal-organic frameworks is a milestone project for microwave absorption (MA). However, there is still a bottleneck in deciphering the contribution of various dielectric genes, making it hard to expand the MA potential from selective encoding gene sequences. Herein, a custom-made proton tailoring strategy is used to build a controllable cavity, and meticulously designed thermodynamic regulation promotes the rearrangement of carbon atoms from disorder to order, thus enhancing the characteristics of charge transfer. Meanwhile, the defect-configuration transformation from heteroatom to vacancy and geometric configuration of hollow structure increase the polarization-related dielectric genes. Therefore, MA performance is enhanced towards broadband absorption (6.6 GHz, 1.78 mm) and high-efficiency loss (−62.5 dB), making samples suitable for complex open electromagnetic environments. This work realizes the tradeoff between dielectric gene sequences and provides a profound insight into the functions and sources of various microwave loss mechanisms. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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