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

Abstract in brief

• This study discusses the creation of lightweight, porous microspheres composed of reduced graphene oxide, MXene, TiO2, and FeC, which are engineered through a process involving spray-freezing and microwave irradiation to enhance electromagnetic wave absorption by increasing interfacial polarization.
• The key innovation is the development of numerous heterojunctions between different 2D materials within the microspheres, which generate a high density of polarization charges and sites, significantly boosting interfacial polarization and overall electromagnetic absorption performance.
• The results show that even with a low filler loading of 5 wt%, the microspheres achieve over 70% polarization loss and a minimum reflection loss of -67.4 dB, demonstrating their potential for effective electromagnetic wave attenuation and advanced interface engineering through tailored 2D hierarchical structures.]