ZIF-67衍生Co@C/MoS2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/MoS2 nanocomposites |
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摘要: 通过碳化技术和水热反应相结合成功制备了Co@C/MoS2复合吸波材料。结果表明,ZIF-67的碳化温度和Co@C/MoS2的微观结构对Co@C/MoS2复合材料的吸波性能具有重要影响。Co@C/MoS2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/MoS2复合材料展现出最佳的吸波性能,最小反射损耗(RLmin)和有效吸收带宽(EAB)分别达到-101.84 dB和7.4 GHz。 |
关键词: 纳米复合材料 ZIF-67 Co@C/MoS2 电磁波吸收 |
基金项目: |
Abstract: Co@C/MoS2 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/MoS2 critically influence the wave absorption properties of the Co@C/MoS2 composite material. The wrinkled structure of Co@C/MoS2 enhances the reflection and scattering of incident waves, thereby optimizing 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 (RLmin) 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. |
Keywords: nanocomposite ZIF-67 Co@C/MoS2 electromagnetic wave absorption |
投稿时间:2024-02-27 修订日期:2024-07-18 |
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李敏,孟献丰.ZIF-67衍生Co@C/MoS2纳米复合材料的制备及微波吸收性能[J].无机化学学报,2024,40(10):1932-1942. |
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