Porous Carbon Coated Ni <sub>0.5</sub> Zn <sub>0.5</sub> Fe <sub>2</sub> O <sub>4</sub> Ferrite Embedded in the Interlayer of Mxene Material to Enhance Electromagnetic Wave Absorption Performance
Lei Wang, Zhongyu Deng, Weiwei Dong, Shuqi Shen, Sajjad Ur Rehman
Abstract
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.