Current advances and future perspectives of MXene-based electromagnetic interference shielding materials

With the rapid development of the 5th-generation (5G) mobile communication technology, the applications of high-frequency and high-power electronic equipment are becoming increasingly broadened, which seriously affects the operation of electronic components and human health. Therefore, the research on high-performance electromagnetic interference (EMI) shielding materials is of great significance for the development and upgrading of 5G electronic equipment. In recent years, the transition metal carbides, nitrides, and carbonitrides (MXenes) have gradually received extensive attention from scholars due to ultra-high electrical conductivity, large specific surface area, and excellent hydrophilicity. This review introduces the preparation methods of MXenes and the latest research progress of MXene-based nanomaterials in the field of EMI shielding. In this review, the EMI shielding mechanism and the preparation methods of MXenes are briefly introduced first. Next, the research progress of MXene-based EMI shielding materials in recent years is reviewed, and various kinds of MXene-based EMI shielding materials are introduced in detail, especially the preparation of MXene/polymer EMI shielding composites with various structures. The key scientific and technical problems in the field of MXene-based EMI shielding materials are put forward, and the future development trend is prospected.