Abstract
The porous CoO/MWCNTs and Zn/MWCNTs composites have been fabricated with the wet chemical method and pyrolysis process. For the reason of good impedance matching characteristics, CoO/MWCNTs composites with highly porous structure and dielectric loss properties present exceedingly powerful absorption ability of EM waves, which has a –44.67 dB maximum reflection loss (RL) value at 17.76 GHz at 1.5 mm sample thickness, and the absorption bandwidth below –10 dB is 14.0 GHz (4.0–18 GHz). Moreover, the filling content of the composites into paraffin matrix is merely 10 wt %, which is lower than that of most wave absorbers reported in the past. Consequently, CoO/MWCNTs composites can be used as a potentially lightweight EM wave absorbing material.
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ACKNOWLEDGMENTS
This work was supported by the National Natural Science Foundation of China (no. U16321611), the Natural Science Foundation of Anhui Province (nos. 2008085MF217, 1808085JQ13, KJ2019A0722), the Universities Joint Key Laboratory of Photoelectric Detection Science and Technology in Anhui Province (grant no. 2019GDTC06).
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Meng, Y., Lu, S., Wu, Y. et al. Enhanced Electromagnetic Wave Absorbing Material CoO/MWCNTs Prepared by Pyrolysis of Zeolitic Imidazolate Framework. Russ. J. Phys. Chem. 95 (Suppl 2), S352–S358 (2021). https://doi.org/10.1134/S0036024421150188
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DOI: https://doi.org/10.1134/S0036024421150188