利用 rGO 支持的球状 PEDOT/Fe3O4 构建多种异质界面，实现高效电磁波衰减

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2024-10-30 DOI:10.1016/j.carbon.2024.119764

Cuijuan Xing , Aiqing Xia , Weitao Li , Shanyan Chang , Lili Dong , Jipeng Xu , Yifan Kang , Jiacheng Ma , Fan Wu , Lei Zhang , Wenhuan Huang

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引用次数: 0

摘要

开发具有强大吸收能力、宽工作带宽和低重量的电磁波吸收（EMWA）材料仍然是一项严峻的挑战。我们报告了锚定在还原氧化石墨烯（rGO）异质结构上的 PEDOT/Fe3O4 作为有效 EMWA 材料的制造和优化。我们的研究结果表明，众多异质界面增强了电磁协同作用，促进了阻抗匹配，并放大了介电损耗、磁损耗、极化和多重反射现象。PEDOT/Fe3O4/rGO 异质结构的 EMWA 性能可通过调整 rGO 含量进行微调，从而优化微波吸收特性。由于其结构和成分优势，在厚度为 1.46 mm 时，最小反射损耗 (RLmin) 达到了令人印象深刻的 -52.4 dB，有效吸收带宽 (EAB) 超过 3.52 GHz。这些发现为有意设计多界面电磁吸收器确立了关键基准，为电磁辐射管理的实际应用提供了高效率的波吸收。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Constructing multiple hetero-interfaces with rGO supported globular shaped PEDOT/Fe3O4 toward high-efficiency electromagnetic wave attenuation

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Constructing multiple hetero-interfaces with rGO supported globular shaped PEDOT/Fe3O4 toward high-efficiency electromagnetic wave attenuation

Developing electromagnetic wave-absorbing (EMWA) materials that offer robust absorption capabilities, broad operational bandwidth, and low weight remains a critical challenge. Achieving optimal absorption efficiency through the strategic integration of EMWA components is a promising approach. we report the fabrication and optimization of PEDOT/Fe₃O₄ anchored on a reduced graphene oxide (rGO) heterostructure as an effective EMWA material. Our results demonstrate that the electromagnetic synergy, enhanced by numerous hetero-interfaces, facilitates impedance matching and amplifies dielectric losses, magnetic losses, polarization, and multiple reflection phenomena. The EMWA performance of the PEDOT/Fe₃O₄/rGO heterostructure can be finely tuned by adjusting the rGO content, thereby optimizing microwave absorption properties. Due to its structural and compositional advantages, the minimum reflection loss (RL_min) reaches an impressive −52.4 dB at a thickness of 1.46 mm, covering an effective absorption bandwidth (EAB) exceeding 3.52 GHz. These findings establish critical benchmarks for the intentional design of multi-interface electromagnetic absorbers, offering high-efficiency wave absorption for practical applications in electromagnetic radiation management.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.