Porous Carbon Coated Ni _0.5 Zn _0.5 Fe ₂ O ₄ Ferrite Embedded in the Interlayer of Mxene Material to Enhance Electromagnetic Wave Absorption Performance

ABSTRACT The porous carbon‐coated Ni 0.5 Zn 0.5 Fe 2 O 4 ferrite embedded within Ti 3 C 2 T x MXene interlayers was successfully synthesized via solvothermal and electrostatic self‐assembly, followed by carbonization. The resulting Ni 0.5 Zn 0.5 Fe 2 O 4 @C/Ti 3 C 2 T x composites exhibit superior electromagnetic wave absorption properties, achieving a minimum reflection loss of −63.25 dB at 17.32 GHz with a coating thickness of only 1.53 mm. Notably, heat treatment at 800°C induces the formation of an open interlayer porous microstructure and abundant heterogeneous interfaces, which effectively suppress nanoparticle agglomeration, enhance interfacial polarization, and optimize impedance matching. This study demonstrates a novel strategy to integrate MOF‐derived ferrite with MXene for constructing hierarchical porous structures, offering new insights into the rational design of lightweight, high‐performance microwave absorbing materials.