Research Progress of Graphene-based Absorbing Composites

With the rapid development of electronic information technology, electromagnetic pollution and interference have become more and more serious. It is particularly important to develop microwave absorption materials with comprehensive excellent performance of wide, thin, light and strong. Graphene materials have the advantages of light weight, high conductivity, large specific surface area and strong dielectric loss, however, the impedance matching performance is poor and the loss mechanism is single. Interestingly, the impedance mismatch can be effectively improved by doping heterogeneous elements or designing morphology and structure. Herein, based on electromagnetic wave absorption theory, this paper describes the research progress of different dimensions of graphene-based absorbing materials, and discusses the properties and microwave absorbing mechanism of different graphene-based absorbing materials in detail. The shortcomings of current research work in the field of graphene absorbing materials are also discussed. Finally, the future research direction and development prospect of graphene-based absorbing materials are prospected. © 2024 Chinese Journal of Materials Research. All rights reserved.