In order to solve the electromagnetic pollution, in this paper, Nickel-cobalt-based spinel materials NiCo₂S₄@C/Porous Carbon (PC) composite material, composed of metal sulfide spinel, porous carbon composite material, was prepared. Thanks to the designable interface and the added dipoles, the microwave dielectric responsiveness can be significantly improved, leading to enhanced microwave absorption performance. The results show that, with a matching thickness of 2.1 mm, the minimum reflection loss (RL_min) reaches -59.36 dB at 15.28 GHz. Meanwhile, the effective absorption band (EAB) covers 6.8 GHz, indicating ideal broadband characteristics. In our case, the manufacture of multi-component EM absorbers using a new method can become a promising candidate for high-performance EM absorbers.

为解决电磁污染问题，本文制备了由金属硫化物尖晶石、多孔碳复合材料组成的镍钴基尖晶石材料NiCo ₂ S ₄ @C/多孔碳（PC）复合材料。由于可设计的界面和增加的偶极子，可以显着提高微波介电响应性，从而增强微波吸收性能。结果表明，当匹配厚度为 2.1 mm 时，最小反射损耗 (RL _min) 在 15.28 GHz 时达到 -59.36 dB。同时，有效吸收带（EAB）覆盖6.8 GHz，表明理想的宽带特性。在我们的案例中，使用新方法制造多组分 EM 吸收器可以成为高性能 EM 吸收器的有希望的候选者。