Carbon fibers@Co-ZIFs derivations composites as highly efficient electromagnetic wave absorbers

• DOI: 10.1016/j.jmst.2021.03.072
• Publication Date: 2021-05-25T06:33:27Z
• Authors: Jiabin Chen; Jing Zheng; Qianqian Huang; Gehuan Wang; Guangbin Ji
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Abstract To reduce electromagnetic (EM) wave interference pollution, in this work, carbon fibers@Co-ZIFs derivations (CFZD) as an advanced EM wave absorbing material was successfully prepared. The yolk-shell structure of the magnetic metal particles generated a large amount of contact area, facilitating the interface polarization and relaxation. As a result, the optimized sample delivers a maximum reflection loss (RL) value of -19.2 dB with a bandwidth of 2.6 GHz at a small thickness of 1.3 mm. Additionally, ANSYS Electronics Desktop 2018 (HFSS) was used to simulate the radar cross section (RCS) reduction in practical application based on these composites. The RCS values of composite coatings are less than -10 dBm2 at the range of -90°