Ultra-lightweight carbon nanocomposites as microwave absorber with high absorbing performance derived from flour

IF 23.2 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES
Yiming Zhong, Yunchen Long, Yinuo Sun, Jiachen Qin, Yongxin Li, Gemeng Liang, Jinshuo Zou, Peitao Xie
{"title":"Ultra-lightweight carbon nanocomposites as microwave absorber with high absorbing performance derived from flour","authors":"Yiming Zhong,&nbsp;Yunchen Long,&nbsp;Yinuo Sun,&nbsp;Jiachen Qin,&nbsp;Yongxin Li,&nbsp;Gemeng Liang,&nbsp;Jinshuo Zou,&nbsp;Peitao Xie","doi":"10.1007/s42114-024-01080-5","DOIUrl":null,"url":null,"abstract":"<div><p>Carbon materials, known for their lightweight properties, are widely utilized in electromagnetic wave absorption applications. In order to overcome the limitations of effective absorption of electromagnetic waves by a single carbon material, magnetic cobalt nanoparticles were incorporated into a carbon network derived from flour, resulting in the development of Co/C nanocomposites with a porous structure through fermentation. The results show that the electromagnetic wave absorbing material prepared in this way has advantages such as thin thickness (1.80 mm), lightweight, wide effective bandwidth (8.07 GHz), and high absorption capacity (− 61.6 dB). The absorption capability of the material originates from the multi-level interfaces in Co/C nanocomposites, the porous carbon structure formed during flour fermentation, and the dielectric relaxation generated during the polarization process. The excellent absorption performance is mainly attributed to the optimization of impedance matching and attenuation factor. The presence of amorphous carbon in the carbon network reduces the condensation and oxidation of magnetic cobalt nanoparticles, thus enhancing the impedance matching. By adjusting the Co/C ratio inside the nanocomposites, the impedance matching of the Co/C nanocomposites is improved, and the absorption capacity of the Co/C nanocomposites is improved. This study reports a simple method of preparing the porous microwave absorbing nanocomposites by carbonizing flour-based precursors and finally optimizing their absorption capacity by adding metal nanoparticles.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-024-01080-5","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0

Abstract

Carbon materials, known for their lightweight properties, are widely utilized in electromagnetic wave absorption applications. In order to overcome the limitations of effective absorption of electromagnetic waves by a single carbon material, magnetic cobalt nanoparticles were incorporated into a carbon network derived from flour, resulting in the development of Co/C nanocomposites with a porous structure through fermentation. The results show that the electromagnetic wave absorbing material prepared in this way has advantages such as thin thickness (1.80 mm), lightweight, wide effective bandwidth (8.07 GHz), and high absorption capacity (− 61.6 dB). The absorption capability of the material originates from the multi-level interfaces in Co/C nanocomposites, the porous carbon structure formed during flour fermentation, and the dielectric relaxation generated during the polarization process. The excellent absorption performance is mainly attributed to the optimization of impedance matching and attenuation factor. The presence of amorphous carbon in the carbon network reduces the condensation and oxidation of magnetic cobalt nanoparticles, thus enhancing the impedance matching. By adjusting the Co/C ratio inside the nanocomposites, the impedance matching of the Co/C nanocomposites is improved, and the absorption capacity of the Co/C nanocomposites is improved. This study reports a simple method of preparing the porous microwave absorbing nanocomposites by carbonizing flour-based precursors and finally optimizing their absorption capacity by adding metal nanoparticles.

以面粉为原料制备的高吸波性能的超轻质碳纳米复合材料
碳材料以其轻量化特性被广泛应用于电磁波吸收领域。为了克服单一碳材料有效吸收电磁波的局限性,将磁性钴纳米颗粒加入到面粉衍生的碳网络中,通过发酵开发出具有多孔结构的Co/C纳米复合材料。结果表明,该方法制备的电磁波吸波材料具有厚度薄(1.80 mm)、重量轻、有效带宽宽(8.07 GHz)、吸收容量高(- 61.6 dB)等优点。材料的吸收能力来源于Co/C纳米复合材料的多层界面、面粉发酵过程中形成的多孔碳结构以及极化过程中产生的介电弛豫。优异的吸收性能主要归功于阻抗匹配和衰减因子的优化。碳网络中无定形碳的存在减少了磁性钴纳米颗粒的凝结和氧化,从而增强了阻抗匹配。通过调整纳米复合材料内部的Co/C比,改善了Co/C纳米复合材料的阻抗匹配,提高了Co/C纳米复合材料的吸收能力。本研究报道了一种简单的制备多孔微波吸收纳米复合材料的方法,通过碳化面粉基前驱体,最后通过添加金属纳米颗粒来优化其吸收能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
26.00
自引率
21.40%
发文量
185
期刊介绍: Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信