二维 Fe3Al@PPy 薄片的磁性和介电协同特性显示出宽带和强电磁波吸收能力

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2024-09-24 DOI:10.1016/j.susmat.2024.e01127

Xixi Luo , Tao Liu , Changze Wei , Di Lan , Xin Li , Ying Ma , Hui Xie , Fangli Yu , Guanglei Wu

{"title":"二维 Fe3Al@PPy 薄片的磁性和介电协同特性显示出宽带和强电磁波吸收能力","authors":"Xixi Luo , Tao Liu , Changze Wei , Di Lan , Xin Li , Ying Ma , Hui Xie , Fangli Yu , Guanglei Wu","doi":"10.1016/j.susmat.2024.e01127","DOIUrl":null,"url":null,"abstract":"<div><div>Addressing the issue of low impedance characteristics is essential to improve the electromagnetic wave absorption performance of magnetic materials. Herein, two dimensional Fe<sub>3</sub>Al@polypyrrole (PPy) lamellae with synergistic magnetic and dielectric properties are fabricated by a mechanical alloying, ordering transformation and polymerization process, which exhibits excellent electromagnetic wave absorption performance. By carefully controlling the thickness of the PPy shell, the optimized Fe<sub>3</sub>Al@PPy lamellae show a minimum reflection loss of −45.6 dB and an effective absorption bandwidth of 9.1 GHz at a thickness of only 1.5 mm. The conformal growth of Fe<sub>3</sub>Al@PPy lamellae can induce strong interfacial polarization, dipole polarization, multiple scattering effect and magnetic loss behaviors for the attenuation of electromagnetic waves. This study demonstrates a facile strategy for the development of efficient Fe<sub>3</sub>Al@PPy composite absorbents showing great potential for practical applications.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"42 ","pages":"Article e01127"},"PeriodicalIF":8.6000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistically magnetic and dielectric properties of two dimensional Fe3Al@PPy lamellae exhibiting broadband and strong electromagnetic wave absorption\",\"authors\":\"Xixi Luo , Tao Liu , Changze Wei , Di Lan , Xin Li , Ying Ma , Hui Xie , Fangli Yu , Guanglei Wu\",\"doi\":\"10.1016/j.susmat.2024.e01127\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Addressing the issue of low impedance characteristics is essential to improve the electromagnetic wave absorption performance of magnetic materials. Herein, two dimensional Fe<sub>3</sub>Al@polypyrrole (PPy) lamellae with synergistic magnetic and dielectric properties are fabricated by a mechanical alloying, ordering transformation and polymerization process, which exhibits excellent electromagnetic wave absorption performance. By carefully controlling the thickness of the PPy shell, the optimized Fe<sub>3</sub>Al@PPy lamellae show a minimum reflection loss of −45.6 dB and an effective absorption bandwidth of 9.1 GHz at a thickness of only 1.5 mm. The conformal growth of Fe<sub>3</sub>Al@PPy lamellae can induce strong interfacial polarization, dipole polarization, multiple scattering effect and magnetic loss behaviors for the attenuation of electromagnetic waves. This study demonstrates a facile strategy for the development of efficient Fe<sub>3</sub>Al@PPy composite absorbents showing great potential for practical applications.</div></div>\",\"PeriodicalId\":22097,\"journal\":{\"name\":\"Sustainable Materials and Technologies\",\"volume\":\"42 \",\"pages\":\"Article e01127\"},\"PeriodicalIF\":8.6000,\"publicationDate\":\"2024-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sustainable Materials and Technologies\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214993724003075\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Materials and Technologies","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214993724003075","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

摘要

解决低阻抗特性问题对于提高磁性材料的电磁波吸收性能至关重要。本文通过机械合金化、有序转化和聚合工艺制备了具有磁性和介电协同特性的二维Fe3Al@聚吡咯（PPy）薄片，表现出优异的电磁波吸收性能。通过仔细控制 PPy 外壳的厚度，优化后的 Fe3Al@PPy 薄片在厚度仅为 1.5 毫米的情况下，最小反射损耗为 -45.6 dB，有效吸收带宽为 9.1 GHz。Fe3Al@PPy薄片的共形生长可诱导强界面极化、偶极子极化、多重散射效应和磁损耗行为，从而衰减电磁波。这项研究为开发高效的 Fe3Al@PPy 复合吸波材料提供了一种简便的策略，具有巨大的实际应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Synergistically magnetic and dielectric properties of two dimensional Fe3Al@PPy lamellae exhibiting broadband and strong electromagnetic wave absorption

查看原文本刊更多论文

Synergistically magnetic and dielectric properties of two dimensional Fe3Al@PPy lamellae exhibiting broadband and strong electromagnetic wave absorption

Addressing the issue of low impedance characteristics is essential to improve the electromagnetic wave absorption performance of magnetic materials. Herein, two dimensional Fe₃Al@polypyrrole (PPy) lamellae with synergistic magnetic and dielectric properties are fabricated by a mechanical alloying, ordering transformation and polymerization process, which exhibits excellent electromagnetic wave absorption performance. By carefully controlling the thickness of the PPy shell, the optimized Fe₃Al@PPy lamellae show a minimum reflection loss of −45.6 dB and an effective absorption bandwidth of 9.1 GHz at a thickness of only 1.5 mm. The conformal growth of Fe₃Al@PPy lamellae can induce strong interfacial polarization, dipole polarization, multiple scattering effect and magnetic loss behaviors for the attenuation of electromagnetic waves. This study demonstrates a facile strategy for the development of efficient Fe₃Al@PPy composite absorbents showing great potential for practical applications.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.