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论文名称：Magnetoelectric Synergy-Mediated Impedance Tuning in Ni/SiC Carbon Nanofibers for Multiband Electromagnetic Wave Absorption

发表刊物：Colloids and Surfaces A: Physicochemical and Engineering Aspects

刊物所在地：Elsevier

关键字：electromagnetic wave absorption; carbon nanofibers; impedance matching; magnetic/dielectric synergy; 3D network

摘要：One-dimensional carbon nanomaterials have shown great promise as electromagnetic wave (EMW) absorbers, yet their practical application is often hindered by impedance mismatch and dielectric/magnetic loss capabilities. To overcome these limitations, this study presents an innovative LC-circuit-inspired structural design, in which self-doped carbon nanofibers (CNFs) are integrated with magnetic nickel (Ni) and dielectric silicon carbide (SiC) nanoparticles via electrospinning. By systematically tuning the Ni/SiC mass ratio within the CNF matrix, we optimized impedance matching and enhanced dynamic balance between magnetic permeability and dielectric constant through magnetic–dielectric synergy. The optimized composite with a Ni:SiC ratio of 1:1 (Ni/SiC CNFs-2) exhibits excellent microwave absorption characteristics, attributed to an LC-circuit synergy between magnetic and dielectric components, it achieves balanced magnetic dielectric losses and optimal impedance matching characteristics. The diverse defects induced by controlled graphitization and the nitrogen-doped defects in CNFs lead to charge accumulation, which further exacerbates dielectric loss through resulting dipole polarization. Remarkably, Ni/SiC CNFs-2 achieves a minimum reflection loss of -42.37 dB at 3.81 GHz, with effective absorption bands covering 3.29–4.40 GHz and 11.88–12.99 GHz. This work highlights the broad applicability of LC-circuit-inspired structural engineering for developing high-performance EMW absorbing materials.

第一作者：Hongsheng Li

通讯作者：Zuoli He

全部作者：Yanfu Zhou,Aimin Wu,Hao Huang,Youshi Zhang

论文类型：期刊论文

论文编号：141527

学科门类：工学

一级学科：环境科学与工程

文献类型：J

卷号：750

期号：Part 2

页面范围：141527

DOI码：10.1016/j.colsurfa.2026.141527

字数：6000

是否译文：否

发表时间：2026-08

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0927775726020674?via%3Dihub#fig0045

发布时间：2026-08-11