NiFe-PBA/biomass-derived carbon lightweight composites with excellent electromagnetic wave absorption capacity

IF 7.7 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-06-06 DOI:10.1016/j.coco.2025.102500

Yanjian Wang , Hao Xu , Yanan Zheng , Liangmin Yu

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Abstract

In recent years, natural biomass-derived carbon materials have garnered significant attention due to their affordability and sustainability. In this study, we selected corn silk characterized by its filamentous structure, as the primary source of biomass carbon. We firmly anchored nickel-iron Prussian blue analog (NiFe-PBA) onto the surface of the corn silk through adsorption and complexation polymerization, subsequently preparing a biomass-derived carbon composite Ni_-x-Fe/C, embedded with magnetic metal particles via high-temperature carbonization. The impedance matching of the Ni_-x-Fe/C composites was fine-tuned by varying the Ni ratio, which further regulated the electromagnetic wave absorption (EMWA) performance. The optimized Ni_-x-Fe/C composite material achieved a minimum reflection loss (RL_min) of −57.17 dB at a thickness of 2.5 mm, and a maximum effective absorption bandwidth (EAB_max) of 4.16 GHz at a thickness of 1.5 mm. The exceptional EMWA performance of the Ni_-x-Fe/C composites can be attributed to the biomass-derived carbon heterostructure, the core-shell configuration comprising graphitic carbon and magnetic particles, and the synergistic interactions between the carbon and magnetic components. This combined effect enhances impedance matching, interfacial polarization, eddy current loss, dipolar polarization, and plasma resonance, thereby improving EMW attenuation. Overall, the findings of this study provide a practical approach to designing biomass-based carbon as a sustainable, lightweight, and efficient material for microwave absorption.

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具有优异电磁波吸收能力的nfe - pba /生物质衍生碳轻质复合材料

近年来，天然生物质衍生碳材料因其可负担性和可持续性而受到广泛关注。在本研究中，我们选择了具有丝状结构特征的玉米丝作为生物质碳的主要来源。我们通过吸附和络合聚合将镍铁普鲁士蓝类似物（NiFe-PBA）牢固地固定在玉米丝的表面，随后通过高温碳化制备生物质来源的碳复合材料Ni-x-Fe/C，并嵌入磁性金属颗粒。通过改变Ni比来调整Ni-x- fe /C复合材料的阻抗匹配，从而进一步调节其电磁波吸收性能。优化后的Ni-x-Fe/C复合材料在厚度为2.5 mm时的最小反射损耗（RLmin）为−57.17 dB，在厚度为1.5 mm时的最大有效吸收带宽（EABmax）为4.16 GHz。Ni-x-Fe/C复合材料优异的EMWA性能可归因于生物质衍生的碳异质结构、由石墨碳和磁性颗粒组成的核壳构型以及碳和磁性组分之间的协同相互作用。这种综合效应增强了阻抗匹配、界面极化、涡流损耗、偶极极化和等离子体共振，从而改善了EMW的衰减。总的来说，本研究的发现为设计生物质基碳作为一种可持续、轻量化和高效的微波吸收材料提供了一种实用的方法。

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

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.