Nano-composites of MWCNTs and Ni_0.5Zn_0.5Fe₂O₄ were synthesized by two different methods i.e. co-precipitation (CM) and physical-mixing (PM). Properties of synthesized materials were studied by various analytical equipments/techniques viz. X-ray diffraction (XRD), Raman spectroscopy, scanning and transmission electron microscopy (SEM and TEM), UV–visible spectroscopy and N5230C vector network analyzer (VNA). The XRD and Raman Spectroscopy confirmed the crystalline phase formation of NZF nano-particles and hybrid NZF/MWCNT nano-composites. The FESEM and TEM images revealed hexagonal flake-like structure of NZF deposited on MWCNTs. The energy band gap of NZF, PM and CM was obtained to be 1.9 eV, 1.3 eV and 1.1 eV respectively. The Electromagnetic interference performance of Ni_0.5Zn_0.5Fe₂O₄/MWCNTs nano-composite are reported in the manuscript. The dielectric parameters and EMI shielding effectiveness of nano-materials were carried out by Vector Network Analyzer in the X-band frequency region. The reflection loss value (RL) was calculated and it is observed maximum with a value of −51.2 dB for PM sample at 11.2 GHz. Total shielding effectiveness of 40.1 dB was observed for CM nano-composite in X-band in frequency range 8.2 GHz–12.4 GHz and thus, these composite materials are good for wider applications in electromagnetic absorption devices.

MWCNTs和Ni _0.5 Zn _0.5 Fe ₂ O _{4 的}纳米复合材料由两种不同的方法合成，即共沉淀 (CM) 和物理混合 (PM)。合成材料的性能通过各种分析设备/技术进行研究，即。X 射线衍射 (XRD)、拉曼光谱、扫描和透射电子显微镜（SEM 和 TEM）、紫外-可见光谱和 N5230C 矢量网络分析仪 (VNA)。XRD 和拉曼光谱证实了 NZF 纳米颗粒和混合 NZF/MWCNT 纳米复合材料的结晶相形成。FESEM 和 TEM 图像揭示了沉积在 MWCNT 上的 NZF 的六边形片状结构。NZF、PM和CM的能带隙分别为1.9 eV、1.3 eV和1.1 eV。Ni _0.5 Zn _0.5 Fe ₂ O ₄的电磁干扰性能/MWCNTs 纳米复合材料在手稿中有所报道。纳米材料的介电参数和EMI屏蔽效能通过矢量网络分析仪在X波段频率范围内进行。计算了反射损耗值 (RL)，在 11.2 GHz 的 PM 样本中观察到最大值为 -51.2 dB。在 8.2 GHz–12.4 GHz 频率范围内，X 波段的 CM 纳米复合材料的总屏蔽效率为 40.1 dB，因此，这些复合材料有利于在电磁吸收装置中的更广泛应用。