Abstract
Nanotechnology has involved enormous attention in enhancing electromagnetic interference (EMI) shielding. The nanocomposite {Co0.5Zn0.5Fe2O4/PANI-PTSA} was synthesized in different ratios (9:1, 3:1, 1:1 and 1:3) and coded as (CZFP1, CZFP2, CZFP3 and CZFP4), respectively. X-ray diffraction, Hall effect, vibrating-sample magnetometer and then vector network analyzer in X-band were used to be characterized. The Nicholson–Ross–Weir (NRW) method was applied to determine the real and imaginary parts of the complex relative permittivity (e*) and permeability (μ*). The nanocomposite CZFP3 exhibited the best absorption property with the optimal matching thickness of 3 mm in the frequency of 8–12 GHz. The value of the maximum RL was − 2.3 dB (> 40% power absorption) at 8.1 GHz, − 17.08 dB (98% power absorption) at 9 GHz and − 24.86 dB (99.73% power absorption) at 10.9 GHz. The excellent absorption properties of Co0.5Zn0.5Fe2O4/PANI-PTSA nanocomposites with ratio weight 1:1 indicated their great potential as microwave absorbing materials.
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