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Construction of heterogeneous interfaces modulating dielectric loss in MOF-derived FeCoNi/C confined carbon aerogels as multifunctional microwave absorbers

文献类型：期刊论文

作者Guo, Yiming1,2,3; Chen, Lin2; Li, Xiaoxiao2,3; Sun, Jun2,3; Ge, Daowen4; Lin, Yongxing2; Li, Xiangyang2; Liu, Gang2; Gong, Yi2; Zhang, Xian2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2024-08-25
卷号996
关键词FeCoNi alloy Multi-walled carbon nanotube Composite aerogel Microwave absorption Multifunctional
ISSN号0925-8388
DOI10.1016/j.jallcom.2024.174764
通讯作者Chen, Lin(chenlin@issp.ac.cn) ; Sun, Jun(jsun@rntek.cas.cn)
英文摘要Aerogels offer versatile solutions for electromagnetic wave (EMW) absorption, thermal insulation, and flame retardant properties, making them promising materials for protecting spacecraft electronic components from potential heat-related damage. Herein, we present the fabrication of three-dimensional carbon aerogel, in which trimetallic organic frameworks as primary precursors. The process involves flash freezing with liquid nitrogen and freeze drying, followed by pyrolysis. Finally, the derivatives of the trimetallic organic framework are uniformly encapsulated in the structured pore walls of the oriented three-dimensional carbon aerogel. Due to the hierarchical porous structure design, the conductivity difference between multi-walled carbon nanotubes (MWCNT) and FeCoNi alloys leads to electromagnetic synergistic effects and impedance matching optimization of the interfacial polarization. The CCNT-FeCoNi/C composite aerogel exhibits an impressive reflection loss (RL) of -61.55 dB at a frequency of 17.44 GHz with a thickness of 2.42 mm. And the effective absorption bandwidth (EAB) extends beyond 7.2 GHz and ranges from 10.8 GHz to 18 GHz at a thickness of 2.82 mm. In addition, the CCNT-FeCoNi/C composite aerogels exhibit excellent thermal insulation and flame retardant properties. This research provides a promising avenue for the further development of multifunctional lightweight microwave absorption (MA) materials.
WOS关键词COMPOSITES
资助项目CASHIPS Director's Fund[YZJJZX202015] ; Anhui Science and Technology Major Project[202103a05020014] ; Team Project of Innovation and Entrepreneurship[LAY-2021-CXG-010] ; National Key Research and Development Program of China[2023YFB3812300] ; Sichuan Science and Technology Plan Project[21ZYCG003L]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001325716500001
出版者ELSEVIER SCIENCE SA
资助机构CASHIPS Director's Fund ; Anhui Science and Technology Major Project ; Team Project of Innovation and Entrepreneurship ; National Key Research and Development Program of China ; Sichuan Science and Technology Plan Project
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135667]  
专题中国科学院合肥物质科学研究院
通讯作者Chen, Lin; Sun, Jun
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
3.Anhui Inst Innovat Ind Technol, Luan 237100, Peoples R China
4.Anhui Construct Engn Inspect Technol Grp Co Ltd, Hefei 230061, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Yiming,Chen, Lin,Li, Xiaoxiao,et al. Construction of heterogeneous interfaces modulating dielectric loss in MOF-derived FeCoNi/C confined carbon aerogels as multifunctional microwave absorbers[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,996.
APA Guo, Yiming.,Chen, Lin.,Li, Xiaoxiao.,Sun, Jun.,Ge, Daowen.,...&Tian, Xingyou.(2024).Construction of heterogeneous interfaces modulating dielectric loss in MOF-derived FeCoNi/C confined carbon aerogels as multifunctional microwave absorbers.JOURNAL OF ALLOYS AND COMPOUNDS,996.
MLA Guo, Yiming,et al."Construction of heterogeneous interfaces modulating dielectric loss in MOF-derived FeCoNi/C confined carbon aerogels as multifunctional microwave absorbers".JOURNAL OF ALLOYS AND COMPOUNDS 996(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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