Boosting Interfacial Polarization Through Heterointerface Engineering in MXene/Graphene Intercalated-Based Microspheres for Electromagnetic Wave Absorption

rGO/MXene/TiO 2 /Fe 2 C heterointerface porous microspheres prepared via scalable method to boost polarization. Customization of hierarchical structure by precisely tuning 2D rGO/MXene intercalation. Optimal reflection loss of -67.4 dB and EAB = 5.47 GHz at low filler loading of 5 wt%. Simulations showed the benefits of 2D nanosheets intercalation on polarization loss.