Conjugate ferrocene polymer derived magnetic Fe/C nanocomposites for electromagnetic absorption application  

作　　者：Aming Xie Zhendong Ma Ziming Xiong Weijin Li Lai Jiang Qiu Zhuang Siyao Cheng Wei Lu 

机构地区：[1]School of Mechanical Engineering,Nanjing University of Science&Technology,Nanjing 210094,China [2]State Key Laboratory of Explosion&Impact and Disaster Prevention&Mitigation,Army Engineering University of PLA,Nanjing 210007,China [3]School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China [4]Shanghai Key Lab.of D&A for Metal-Functional Materials,School of Materials Science&Engineering,Tongji University,Shanghai 201804,China

出　　处：《Journal of Materials Science & Technology》2024年第8期125-131,共7页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.11975124);the Fundamental Research Funds for the Central universities(Nos.30920041102 and 30920041103);the Open Fund of Key Laboratory of Materials Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics),Ministry of Industry and Information Technology(No.56XCA22042).

摘　　要：Coordination bonds are relatively unstable compared to covalent bonds,and common carbon-based absorbing material precursors are bonded in the form of coordination bonds.In this work,we have introduced ferrocene units into conjugated microporous polymers(CMP)in one step by Suzuki reaction.By adjusting the proportion of ferrocene units,a series of magnetic Fe-C nanocomposites(Fe-P-XC)derived from conjugated ferrocene polymers without heteroatom doping(N,S,P,etc.)were formed.The Fe-P-2C composite has good absorption properties with minimum reflection loss at 4.4 GHz(-58.66 dB)and effective absorption bandwidth(EAB)of 6.28 GHz at 2.4 mm(11.72-18 GHz).Compared with the precursor materials formed by coordination bonds,the present work reveals the electromagnetic wave absorption mechanism of carbon-based materials without heteroatom doping through a simple and effective strategy.

关 键 词：Covalent bonds Suzuki reaction Conjugated ferrocene polymers Electromagnetic wave absorption 

分 类 号：TB383[一般工业技术—材料科学与工程]