Analysis of the conductivity process and preparation of Al and Nd co-doped apatite-type lanthanum silicate electrolyte

Xiaofeng Tian; Zhi liang Huang; Yuan Jiang

doi:10.1117/12.3015175

6 February 2024 Analysis of the conductivity process and preparation of Al and Nd co-doped apatite-type lanthanum silicate electrolyte

Xiaofeng Tian, Zhi liang Huang, Yuan Jiang

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129791B (2024) https://doi.org/10.1117/12.3015175
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

Apatite type lanthanum silicate shows high conductivity and low activation energy at medium and low temperatures. In order to improve the conductivity of lanthanum silicate at medium and low temperatures (500-800 °C), this article studies the conductivity of Al and Nd co-doped lanthanum silicate at different sintering temperatures. The SEM images, relative density, and linear shrinkage of La_9.33Si_5.5Nd_0.4Al_0.5O_26.35 at different sintering temperatures are compared. The results show that the optimal sintering temperature is 1500 °C. EIS analysis shows that the electrochemical impedance spectra of Al and Nd co-doped at 600 °C, it was found that La_9.33Si_5.5Nd_0.4Al_0.5O_26.35 has the best conductivity of 6.46×10^-4 Sꞏcm^-1.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Xiaofeng Tian, Zhi liang Huang, and Yuan Jiang "Analysis of the conductivity process and preparation of Al and Nd co-doped apatite-type lanthanum silicate electrolyte", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129791B (6 February 2024); https://doi.org/10.1117/12.3015175

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