Multimechanism Decoupling for Low-Frequency Microwave Absorption Hierarchical Fe-Doped Co Magnetic Microchains

IF 18.5 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Functional Materials Pub Date : 2025-04-24 DOI:10.1002/adfm.202506803

Yixuan Han, Hua Guo, Hua Qiu, Jinwen Hu, Mukun He, Xuetao Shi, Yali Zhang, Jie Kong, Junwei Gu

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Abstract

The rapid development of military and civilian electronic communication technology poses a severe challenge to controlling electromagnetic radiation pollution in the low-frequency microwave band. This study introduces a novel one-step feeding self-assembly and ripening strategy to synthesize 1D@2D magnetic microchains (Co@Fe_xCo_1-_xOOH, CFC). The experimental and simulation results show that increasing the flux length and ordered orientation is very important to improve the absorption performance of 1D magnetic absorber. The CFC-LC-E (long-chain CFC aligned along the electric field direction) prepared based on the above characteristics successfully achieves a high-performance microwave absorption effect, with a minimum reflection loss value (RLmin) of −66.4 dB. Notably, it maintains stable performance against oblique incidence (within 90°) and polarizations (transverse electric and transverse magnetic). This work offers novel ideas in the fabrication of 1D magnetic microwave absorbers and the analysis of microwave absorption mechanisms.

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低频微波吸收分层掺铁Co磁微链的多机制解耦

军用和民用电子通信技术的快速发展，对低频微波波段电磁辐射污染的控制提出了严峻的挑战。本研究介绍了一种新的一步进料自组装成熟策略来合成1D@2D磁性微链（Co@FexCo1-xOOH， CFC）。实验和仿真结果表明，增加磁通长度和定向有序对提高一维磁吸收器的吸收性能非常重要。基于上述特性制备的CFC- lc - e（沿电场方向排列的长链CFC）成功实现了高性能的微波吸收效果，最小反射损耗值（RLmin）为−66.4 dB。值得注意的是，它在斜入射（90°以内）和极化（横向电和横向磁）下保持稳定的性能。本研究为一维磁性微波吸收体的制备和微波吸收机理的分析提供了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Functional Materials 工程技术-材料科学：综合

CiteScore

29.50

自引率

4.20%

发文量

2086

审稿时长

2.1 months

期刊介绍： Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.