MXene/Ag@whisker Carbon Nanotube‐Based Sandwich Structures for High‐Performance Electromagnetic Interference Shielding

Abstract The development of novel material configurations for achieving high‐performance electromagnetic interference (EMI) shielding remains challenging. To effectively address this issue, in this work, a structure composed of Ag‐modified whisker carbon nanotube (Ag@WCNT) coated with 2D MXene composite is fabricated. The proposed EMI shielding material with different structures (double‐layer and sandwich structures) exhibited high shielding effectiveness close to 85 dB at X‐band. Its lightweight structure allowed for efficient shielding without significant weight gain, which is especially important in applications such as aerospace, mobile communications equipment, and others where lightweight is required. The high degree of tunability of these composites can be leveraged for meeting specific application requirements. This property renders them promising candidates for a wide range of electromagnetic shielding applications.