CrN attached multi-component carbon nanotube composites with superior electromagnetic wave absorption performance

Abstract

Compared with the other absorption materials, multicomponent of CNTs composite materials have become increasingly significant in the preparation of high-performance electromagnetic wave absorption materials due to their unique dielectric-magnetic advantages. In this paper, we use the heating and disintegration of organic amine salt to achieve the restoration of oxides while derivating carbon nanotubes, preparing an excellent performance of Co/Cu/CrN/CNTs composite materials. Due to annealing, slim -shaped CrN evenly attached to the surface of carbon nanotubes. The material forms a rich interface and good impedance matching characteristics, thereby realizing the excellent electromagnetic wave absorption performance of the material. The maximum bandwidth of 7.2 GHz was obtained at 2.62 mm and the minimum reflection loss was – 53.58 dB. The composite material design provides a new way for the development of high-performance electromagnetic wave absorption materials.