Thermal, structural and electrical properties of Li2BaSiO4 ceramic electrolyte

Lithium Barium Silicate (Li2BaSiO4) solid electrolyte was prepared by Sol - gel method with citric acid as the chelating agent. Thermal, structural and electrical characterization was done using Thermogravimetric/Differential Scanning Calorimetry, X-ray Diffraction, Fourier Transform Infrared and Im...

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Main Authors: Adnan, Syed Bahari Ramadzan Syed, Mohamed, Nor Sabirin, Mustaffa, Nur Amalina, Zainal, Norazlin, Ibrahim, Suriani, Radzi, Z.I.
格式: Article
出版: Elsevier 2019
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在線閱讀:http://eprints.um.edu.my/20144/
https://doi.org/10.1016/j.ceramint.2018.09.199
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總結:Lithium Barium Silicate (Li2BaSiO4) solid electrolyte was prepared by Sol - gel method with citric acid as the chelating agent. Thermal, structural and electrical characterization was done using Thermogravimetric/Differential Scanning Calorimetry, X-ray Diffraction, Fourier Transform Infrared and Impedance Spectroscopy respectively. Pure phase of Li2BaSiO4 sintered at 700 °C and 800 °C showed stability at that temperature. The conductivity of the electrolyte increased linearly with temperature. The bulk conductivity of the samples sintered at 800 °C was found to be 1.45 × 10−4 S cm−1 at 500 °C. The temperature dependence also follows the Arrhenius relation with activation energy of 0.11 eV. The complex impedance analysis of the electrolyte showed a typical negative temperature coefficient of resistance (NTCR) behavior.