Electromagnetic Interference Shielding of 2D Transition Metal Carbide (MXene)/Metal Ion Composites

In this work, Ti(3)C(2), which has a loosely packed accordion-like structure in transition metal carbide (MXene) form, is fabricated and adsorbed by three metal ions (Fe(3+)/Co(2+)/Ni(2+)). The electromagnetic interference (EMI) shielding performance of Ti(3)C(2) and Ti(3)C(2):Fe(3+)/Co(2+)/Ni(2+) films is researched in detail, demonstrating that the EMI shielding effectiveness can be improved by adsorbing by Fe(3+)/Co(2+)/Ni(2+) ions because the metal ion adsorbing can improve the absorption efficiency via electromagnetic wave scattering. The studied Ti(3)C(2):Fe(3+)/Co(2+)/Ni(2+) films can be used as good EMI shielding materials for communications, electronics, military, and other applications.