低成本固相法合成 Na–β"-Al2O3 固体电解质陶瓷

Translated title of the contribution: Synthesis of Na-βʺ-Al2O3 Solid Electrolytes by Solid-state Reaction Method

王竹梅*, 张天峰, 左洪威, 谢志翔, 李月明, 程亮

*Corresponding author for this work

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    1 Citation (Scopus)

    Abstract

    The Na-β"-Al2O3 solid electrolyte ceramic material was synthesized by a conventional solid-state reaction method with inexpensive industrial alumina as a raw material. The samples were characterized by X-ray diffraction and scanning electron microscopy, and the conductivity of the sample was tested by AC impedance method. The results indicate that the relative content of β"-Al2O3 phase is closely related to the Na content in Na1.67(1+x)Li0.33Al10.67O17 and the synthesis temperature when x=0.15, and the sintering temperature is 1 580℃. The maximum relative content of β"-Al2O3 phase is 97.19%. In this case, the microstructure of ceramics is relatively compact, its conductivity is 0.028 S/cm at 300℃ and the conductance activation energy is 0.259 eV.
    Translated title of the contributionSynthesis of Na-βʺ-Al2O3 Solid Electrolytes by Solid-state Reaction Method
    Original languageChinese (Simplified)
    Pages (from-to)1217-1221
    Journal硅酸盐学报 / Journal of the Chinese Ceramic Society
    Volume46
    Issue number9
    DOIs
    Publication statusPublished - Sept 2018

    Research Keywords

    • 固体电解质
    • 钠–β"-氧化铝固体电解质
    • 离子电导率
    • 低成本
    • sodium-beta"-alumina solid electrolyte
    • ionic conductivity
    • Sodium-beta"-alumina solid electrolyte
    • low cost

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