原位生长FeCo/rGo纳米复合材料的电磁波吸收性能研究  

Electromagnetic wave absorption properties of FeCo/rGo nanocomposites grown in situ

作　　者：鲁露 周金堂[1,2] 彭贵玉 姚俊儒 LU Lu;ZHOU Jintang;PENG Guiyu;YAO Junru(College of Materials Science and Technology,Nanjing University of Aeronautics andAstronautics,Nanjing 211100,China;Key Laboratory of Material Preparation and Protection for Harsh Environment,Ministry of Industry andInformation Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)

机构地区：[1]南京航空航天大学材料科学与技术学院,南京211100 [2]南京航空航天大学面向苛刻环境的材料制备与防护技术工业和信息化部重点实验室,南京211100

出　　处：《功能材料》2024年第1期1124-1129,1157,共7页Journal of Functional Materials

基　　金：国家自然基金资助项目(52172295)。

摘　　要：利用化学开发高性能吸波材料是解决电磁污染问题和实现军事装备雷达隐身的有效手段。基于化学原位生长策略,以金属离子Fe^(2+)和Co^(2+)为原料,采用一步水热法制备FeCo/rGo复合材料,并对其形貌、结构以及吸波性能进行测试和分析。结果表明,当FeCo和氧化石墨烯的复合比为1∶0.5在厚度1.9 mm时有效吸收带宽达到5.5 GHz,其最小反射损耗达到-54.14 dB。复合比为1∶1时则实现了1.3 mm,4.5 GHz有效吸收带宽的吸波性能,这表明FeCo/rGo磁性材料有望成为一种极具应用价值的电磁吸波材料。The development of high-performance absorbing materials is an effective means to solve the problem of electromagnetic pollution and realize the radar stealth of military equipment.Based on the chemical in situ growth strategy,FeCo/rGo composites were prepared by one-step hydrothermal method with metal ions Fe 2+and Co 2+as raw materials.The morphology,structure and wave absorption properties of FeCo/rGo composites were tested and analyzed.The results show that when the recombination ratio of FeCo and graphene oxide is 1:0.5 and the thickness is 1.9 mm,the effective absorption bandwidth reaches 5.5 GHz,and the minimum reflection loss reaches-54.14 dB.When the composite ratio is 1:1,the absorption performance of 1.3 mm and 4.5 GHz effective absorption bandwidth is achieved,which indicates that FeCo/rGo magnetic material is expected to become a kind of electromagnetic wave absorption material with great application value.

关 键 词：吸波性能 水热法 FeCo/rGo 石墨烯 电磁吸波材料 

分 类 号：TB332[一般工业技术—材料科学与工程]