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    A novel fabrication of yttria-stabilized-zirconia dense electrolyte for solid oxide fuel cells by 3D printing technique

    Access Status
    Fulltext not available
    Authors
    Wei, L.
    Zhang, J.
    Yu, F.
    Zhang, W.
    Meng, X.
    Yang, N.
    Liu, Shaomin
    Date
    2019
    Type
    Journal Article
    
    Metadata
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    Citation
    Wei, L. and Zhang, J. and Yu, F. and Zhang, W. and Meng, X. and Yang, N. and Liu, S. 2019. A novel fabrication of yttria-stabilized-zirconia dense electrolyte for solid oxide fuel cells by 3D printing technique. International Journal of Hydrogen Energy. 44 (12): pp. 6182-6191.
    Source Title
    International Journal of Hydrogen Energy
    DOI
    10.1016/j.ijhydene.2019.01.071
    ISSN
    0360-3199
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/73651
    Collection
    • Curtin Research Publications
    Abstract

    Three-dimensional (3D) printing technique represents a revolutionary advancement in the manufacturing sector due to its unique capabilities to process the shape complexity. This work is focusing on dense 8 mol.% yttria-stabilized-zirconia (8YSZ) electrolyte fabrication via digital light processing (DLP)-stereolithography-based 3D printing technique. Multiple 8YSZ electrolyte green bodies are printed simultaneously in a batch using ceramic-resin suspension made of 30 vol% 8YSZ powder loading in a photo-curable resin. Together with an optimized debinding and sintering procedure, the 8YSZ green body changes into a dense electrolyte, and the density of the sintered electrolyte was measured as 99.96% by Archimedes’ water displacement method. The symmetric cell fabricated of silver-Ce0.8Gd0.2O1.9 (Ag-GDC) as cathode/anode and dense 8YSZ electrolyte printed by DLP-stereolithography delivers a high open circuit voltage of approximately 1.04 V and a peak power density up to 176 mW·cm-2 at 850 °C by using hydrogen as the fuel and air as the oxidant. The electrochemical performance of the symmetric cell Ag-GDC|YSZ|Ag-GDC with 8YSZ electrolyte fabricated via DLP-stereolithography is comparable to that of the same cell with 8YSZ electrolyte fabricated by conventional dry pressing method. This 3D printing technique provides a novel method to prepare dense electrolytes for solid oxide fuel cell (SOFC) with good performance, suggesting a potential application for one-step fabrication of complex structure SOFC stack.

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