ZIF⁃67衍生Co@C/MoS_(2)纳米复合材料的制备及微波吸收性能  

Preparation and microwave absorption properties of ZIF⁃67 derived Co@C/MoS_(2)nanocomposites

作　　者：李敏[1] 孟献丰[1] LI Min;MENG Xianfeng(School of Materials Science and Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]江苏大学材料科学与工程学院,镇江212013

出　　处：《无机化学学报》2024年第10期1932-1942,共11页Chinese Journal of Inorganic Chemistry

摘　　要：通过碳化技术和水热反应相结合成功制备了Co@C/MoS_(2)复合吸波材料。结果表明,ZIF⁃67的碳化温度和Co@C/MoS_(2)的微观结构对Co@C/MoS_(2)复合材料的吸波性能具有重要影响。Co@C/MoS_(2)的褶皱结构增强了入射波的反射与散射,进而优化了阻抗匹配,提高了材料的电磁波(EMW)吸收性能。当碳化温度为800℃,样品匹配厚度为1.7 mm时,Co@C/MoS_(2)复合材料展现出最佳的吸波性能,最小反射损耗(RL_(min))和有效吸收带宽(EAB)分别达到-101.84 dB和7.4 GHz。Co@C/MoS_(2)wave⁃absorbing materials were successfully synthesized by the combination of carbonization techniques and hydrothermal reactions.The results indicate that the carbonization temperature of ZIF⁃67 and the microstructure of Co@C/MoS_(2)critically influence the wave absorption properties of the Co@C/MoS_(2)composite mate⁃rial.The wrinkled structure of Co@C/MoS_(2)enhances the reflection and scattering of incident waves,thereby optimiz⁃ing the impedance matching and enhancing the electromagnetic wave(EMW)performance of the material.When the calcination temperature of ZIF⁃67 was 800℃,the minimum reflection loss(RL_(min))of-101.84 dB was obtained at the thickness of 1.7 mm,and the corresponding effective absorption bandwidth(EAB)was up to 7.4 GHz.

关 键 词：纳米复合材料 ZIF⁃67 Co@C/MoS_(2) 电磁波吸收 

分 类 号：TB34[一般工业技术—材料科学与工程]