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.

中文翻译：

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基于Co0.5Zn0.5Fe2O4/PANI-PTSA纳米复合材料的电磁干扰屏蔽增强

纳米技术在增强电磁干扰 (EMI) 屏蔽方面受到极大关注。纳米复合材料 {Co0.5Zn0.5Fe2O4/PANI-PTSA} 以不同的比例（9:1、3:1、1:1 和 1:3）合成并分别编码为（CZFP1、CZF​​P2、CZFP3 和 CZFP4）。采用X射线衍射、霍尔效应、振动样品磁强计和X波段矢量网络分析仪进行表征。应用 Nicholson-Ross-Weir (NRW) 方法来确定复数相对介电常数 (e*) 和磁导率 (μ*) 的实部和虚部。纳米复合材料 CZFP3 在 8-12 GHz 频率下表现出最佳的吸收性能，最佳匹配厚度为 3 mm。最大 RL 值在 8.1 GHz 时为 − 2.3 dB（> 40% 功率吸收），在 9 GHz 时为 − 17.08 dB（98% 功率吸收）和 − 24.86 dB（99. 73% 的功率吸收）在 10.9 GHz。重量比为 1:1 的 Co0.5Zn0.5Fe2O4/PANI-PTSA 纳米复合材料的优异吸收性能表明其作为微波吸收材料的巨大潜力。