Citation: Juan LIU, Yu-Zheng LU, Jing-Jing YANG, Ruo-Ming WANG, Bin ZHU, Si-Ning YUN. Al2O3-CeO2 composite electrolyte: Preparation and performance of semiconductor ionic fuel cell[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(9): 1699-1710. doi: 10.11862/CJIC.2023.131 shu

Al2O3-CeO2 composite electrolyte: Preparation and performance of semiconductor ionic fuel cell

  • Corresponding author: Si-Ning YUN, yunsining@xauat.edu.cn
  • Received Date: 8 March 2023
    Revised Date: 14 June 2023

Figures(8)

  • Al2O3-CeO2composite was prepared by coprecipitation method and used as electrolytes in semiconductor ionic fuel cells (SIFCs). We investigated the impact of Al2O3-CeO2 composite electrolyte with different molar ratio of Al2O3 and CeO2 on the electrochemical performance of fuel cells. The composites were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. Among the composites, the obtained Al2O3-CeO2 when the molar ratio was 1∶0.5 exhibited the best performance, and its maximum power density was 1 142 mW·cm-2 when the open-circuit voltage was 1.099 V at 550 ℃. Furthermore, the Al2O3-CeO2 cell displayed excellent mixed ionic conduction and power output performance due to the interface effect of the composite material as the fuel cell electrolyte in the test atmosphere.
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