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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Structural and electrical properties of ZnCo2O4 spinel synthesized by sol-gel combustion method
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Structural and electrical properties of ZnCo2O4 spinel synthesized by sol-gel combustion method

机译：溶胶 - 凝胶燃烧方法合成ZnCo2O4尖晶石的结构和电性能

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摘要

In this present study, we have discussed about the synthesis of spinel type ZnCo2O4 by sol-gel combustion method using glycine as a chelating agent. Structural and morphological verifications are carried out using XRD, SEM and the functional group confirmation by using FT-IR. The temperature dependent dielectric relaxation and conduction mechanism have been analyzed by using dielectric measurements, impedance spectroscopy and electric modulus studies in the frequency range of 50 Hz to 5 MHz between the temperatures 303 K and 593 K. Influence of oxygen vacancy on the behaviour of dielectric relaxation is due to the hopping mechanism between Co2+ and Co3+ sites due to the structural defect in the material. XPS measurement confirms the different oxidation state in Co-site and the existence of oxygen vacancy in the material. The conductivity of the material is studied with Jonscher Power law.
机译：在本研究中，我们已经讨论了使用甘氨酸作为螯合剂的溶胶 - 凝胶燃烧方法的尖晶石型ZnCo2O4的合成。 使用FT-IR使用XRD，SEM和功能组确认进行结构和形态学验证。 通过在温度303k和593k之间使用50Hz至5MHz的频率范围内的频率范围，阻抗光谱和电模量研究进行了分析了温度依赖性介电弛豫和传导机理。氧气空位对电介质行为的影响 放松是由于材料的结构缺陷导致的CO2 +和CO3 +位点之间的跳跃机制。 XPS测量证实了同系体中的不同氧化状态和材料中的氧空位。 用Jonscher Power Law研究了材料的电导率。

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