Ti(3)C(2) MXene: a promising microwave absorbing material

In this work, we demonstrate the enhancement of microwave attenuation capability of Ti(3)C(2) enabled microwave absorbing materials (MAMs) within a frequency range of 2–18 GHz. Ti(3)C(2) nano-sheet/paraffin composites exhibit enhanced microwave absorbing performance with an effective absorbing bandwidth of 6.8 GHz (11.2–18 GHz) at 2 mm and an optimal reflection loss of −40 dB at 7.8 GHz. Moreover, mechanisms for the dielectric responses of the Ti(3)C(2) MXene nanosheets are intensively discussed. Three typical electric polarizations of Ti(3)C(2) are illustrated with the Cole–Cole diagram. The enhanced microwave absorbing properties can be ascribed to the high dielectric loss accompanied with the strong multi-reflections between MXene layers.