In this article, structural, morphological and electrical properties of ZnCo₂O₄ ceramics sample were studied. ZnCo₂O₄ nanoparticles were synthesized using sol-gel method. Structural and morphological properties of the sample were analyzed using X-ray diffraction and scanning electron microscope. Conductance, capacitance and impedance spectroscopy characterization of ZnCo₂O₄ ceramics sample were analyzed in 3 kHz-1.5 MHz frequency range and 300-500 K temperature range. Nyquist diagrams of impedance and the equivalent circuit were studied for ZnCo₂O₄ ceramics in the temperature range of 300-500 K. Cole-Cole curves of the impedance data were found to show a semicircular arc in both low and high temperature areas, which is expressed by the equivalent electrical circuit R_s(R_gC_g)(R_gbQC_gb). Relaxation behavior was identified to be of non-Debye type. The Cole-Cole curve showed the negative temperature coefficient of resistance type behavior. Values of the activation energy corresponding to relaxation processes were found as 0.054 eV below 360 K and 0.561 eV above 360 K.

本文对ZnCo ₂ O ₄陶瓷样品的结构、形貌和电学性能进行了研究。采用溶胶-凝胶法合成了ZnCo ₂ O _{4纳米颗粒。}使用 X 射线衍射和扫描电子显微镜分析样品的结构和形态特性。_{在3 kHz-1.5 MHz频率范围和300-500 K温度范围内分析了ZnCo 2} O ₄陶瓷样品的电导、电容和阻抗谱表征。_{研究了ZnCo 2} O ₄的阻抗奈奎斯特图和等效电路陶瓷在300-500 K温度范围内的阻抗数据的Cole-Cole曲线在低温区和高温区均呈现半圆弧，用等效电路R s ₍ R g _C g ₎表示（R_国标QC_国标）。放松行为被确定为非德拜类型。科尔-科尔曲线显示电阻型行为的负温度系数。弛豫过程对应的活化能值在 360 K 以下为 0.054 eV，在 360 K 以上为 0.561 eV。