Efficient Electromagnetic Shielding Properties and Applications of Two-dimensional Materials and Their Derivatives

With the rapid development of electronic devices and wireless communication technologies, the problem of electromagnetic interference has become increasingly serious, and the development of efficient, lightweight and corrosion-resistant electromagnetic shielding materials has become a current research hotspot. This paper reviews the latest research progress of two-dimensional materials and their derivatives in the field of electromagnetic shielding, focusing on the structural properties, preparation methods, and electromagnetic shielding performance of graphene and its composites, MXene (e.g., Ti3C2Tx ) and CrxTey ultrathin films. It is shown that graphene is an ideal filler for electromagnetic shielding by virtue of its excellent electrical conductivity, mechanical strength and thermal conductivity. MXene materials are capable of preparing lightweight, high-strength and long-life electromagnetic shielding materials due to their excellent electrical conductivity, multifunctionality and composite ability with other materials. CrxTey ultra-thin films exhibit unique magnetoelectric properties and high chemical stability while maintaining good electromagnetic shielding properties, making them suitable for use in harsh environments. This paper summarizes the prospects and challenges of the application of these materials in aerospace and electronic devices, and provides references and suggestions for future research directions.