Porous Carbon Coated Ni_0.5Zn_0.5Fe₂O₄ Ferrite Embedded in the Interlayer of Mxene Material to Enhance Electromagnetic Wave Absorption Performance

Abstract

The porous carbon-coated Ni_0.5Zn_0.5Fe₂O₄ ferrite embedded within Ti₃C₂T_x MXene interlayers was successfully synthesized via solvothermal and electrostatic self-assembly, followed by carbonization. The resulting Ni_0.5Zn_0.5Fe₂O₄@C/Ti₃C₂T_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.

Keywords

composite materials / electromagnetic wave absorption / MOF derived porous carbon / Ni_0.5Zn_0.5Fe₂O₄ ferrite / Ti₃C₂T_x MXene

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