MOFs衍生Co/C纳米复合材料的吸波性能研究
Study on the Absorbing Properties of Co/C Nanocomposites Derived from MOFs
徐春朝 1张亚红 1林凯 1刘梦娇 1李安邦1
作者信息
- 1. 许昌学院 化工与材料学院,河南 许昌 461000
- 折叠
摘要
采用原位热解法在特定温度下制得金属有机骨架衍生Co/C纳米复合材料,并探究了热解温度对Co/C纳米复合材料电磁波吸收性能的影响.利用扫描电子显微镜(SEM)、X射线衍射仪(XRD)和矢量网格分析仪(VNA)等对其微观形貌、晶体结构和吸波性能进行表征.研究表明,热解温度对样品的吸波性能有着明显的影响,Co/C-800 表现出最佳的吸波性能,其最大反射损耗可达-20.88 dB,有效吸收带宽可达4.24 GHz.这一成果对探索新型高效的Co/C复合吸波材料具有一定的借鉴意义.
Abstract
Metal-organic frameworks(MOFs)derived Co/C nanocomposites were prepared by in-situ pyroly-sis of MOFs at specific temperatures to investigate the effect of pyrolysis temperature on the electromagnetic wave absorbing properties of Co/C nanocomposites.Scanning electron microscopy(SEM),X-ray diffractometer(XRD)and vector network analyzer(VNA)were used to investigate the micromorphology,crystal structure and wave absorption properties.The results showed that the pyrolysis temperature had a significant effect on the ab-sorption properties of the samples.Co/C-800 had the best absorbing performance,the maximum reflection loss could reach-20.88 dB and the effective absorption bandwidth could reach 4.24 GHz.This result had a certain significance for exploring new and efficient Co/C composite absorbing materials.
关键词
金属有机骨架/阻抗匹配/衰减能力/吸波性能Key words
metal-organic frameworks/impedance matching/attenuation capacity/absorbing property引用本文复制引用
出版年
2024
NETL
NSTL
万方数据