The development of multifunctional electromagnetic wave (EMW) absorbing materials become the inevitable course for the rapid progress of military weapons and 5 G smart communication technology. The construction of engineered multi-relaxation interfaces provides an effective means for materials to enhance EMW attenuation. Herein, MXene derived Ti3C2T x /TiO2 heterogeneous interface is tailored through the in-situ anneal, where the multi-relaxation nano-interfaces are achieved. When the annealed temperature reaches 450 °C, the maximum reflection loss of Ti3C2T x /TiO2 is −30.4 dB at 5.67 GHz due to the enhanced interfacial polarization and optimized impedance matching. More importantly, an effective reduction in the radar cross section up to −53 dBm2 was achieved by using the Ti3C2T x /TiO2 as the octagonal patch through effective shape design. Therefore, we believe that Ti3C2T x /TiO2 with optimized shape has a broad application prospect in the field of radar stealth and practical electromagnetic protection.
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Liu et al. (2023) studied this question.
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