Hierarchically Porous FeCoNiCrAl/CNF Nanocomposites for Enhanced Electromagnetic Wave Absorption

IF 5.5 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yuanyuan Ma, Guoqin Chen*, Zengyan Wei*, Yuming Feng, Chunyu Wang*, Pingping Wang, Bo Zhong and Gaohui Wu, 
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Abstract

Lightweight, versatile, and efficient electromagnetic wave absorption materials (EWAMs) are needed to counteract the adverse electromagnetic pollution caused by electromagnetic radiation leakage from electronic devices and to eliminate electromagnetic interference. The hybrids of high entropy systems/carbon materials with multifarious loss mechanisms exhibit a tendency to become the focus of the next generation of EWAMs. Here, we fabricate hierarchical porous FeCoNiCrAl/CNF nanocomposites by a one-step microwave instantaneous heating method. Its remarkable microwave absorption performance benefits from the unique nanosize effect of FeCoNiCrAl high-entropy alloy (HEA) nanoparticles in the composition and the multicomponent synergy and hierarchical pore structure. These results provide guidance for the design of advanced HEA-based EWAMs.

Abstract Image

多层多孔FeCoNiCrAl/CNF纳米复合材料增强电磁波吸收
为了抵消电子设备电磁辐射泄漏造成的电磁污染,消除电磁干扰,需要使用重量轻、用途广、效率高的电磁波吸收材料。具有多种损耗机制的高熵系统/碳材料的杂化将成为下一代ewam的研究热点。在这里,我们采用一步微波瞬时加热的方法制备了分层多孔FeCoNiCrAl/CNF纳米复合材料。其优异的微波吸收性能得益于FeCoNiCrAl高熵合金(HEA)纳米颗粒在组成上独特的纳米效应以及多组分协同作用和层次化孔隙结构。这些结果为先进的hea型ewam的设计提供了指导。
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来源期刊
CiteScore
8.30
自引率
3.40%
发文量
1601
期刊介绍: ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.
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