Preparation and microwave absorption properties of ZIF-67 derived Co@C/MoS2 nanocomposites
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 mate-rial.The wrinkled structure of Co@C/MoS2 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(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.
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