Abstract
With the increasing requirements of electromagnetic wave (EMW) absorption, developing EMW absorbers with high-efficiency anti-corrosion performance which can be effectively applied in extreme corrosive environments is imperative and constitutes a hot issue in the current research. Herein, based on the composition modulation of ZrO2 and SiO2 layer, the dual-oxides confined carbonyl iron (CI@ZrO2/SiO2) composite displays a minimum reflection loss (RLmin) of −48.58 dB@1.9 mm and an effective absorption bandwidth (EAB) of 7.62 GHz@1.6 mm. Besides, the CI@ZrO2/SiO2 displays superior corrosion resistance with corrosion current density (icorr) of 8.62 × 10−7 A/cm2 and polarization resistance (Rp) of 3.64×105 Ω. This work proposes a strategy to optimize the broadband EMW absorption properties as well as the mass production toward the corrosion resistance applications.
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