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    Influence of sealing materials on the oxygen permeation fluxes of some typical oxygen ion conducting ceramic membranes

    Access Status
    Fulltext not available
    Authors
    Chen, Y.
    Qian, B.
    Hao, Y.
    Liu, Shaomin
    Tade, Moses
    Shao, Zongping
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Chen, Y. and Qian, B. and Hao, Y. and Liu, S. and Tade, M. and Shao, Z. 2014. Influence of sealing materials on the oxygen permeation fluxes of some typical oxygen ion conducting ceramic membranes. Journal of Membrane Science. 470: pp. 102-111.
    Source Title
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2014.07.027
    ISSN
    0376-7388
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/28786
    Collection
    • Curtin Research Publications
    Abstract

    In this study, the influences of sealing materials on the oxygen permeation fluxes of three typical dense oxygen permeating membranes, including PrBaCo2O5+δ (PBC), Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF5582) and Ce0.8Sm0.2O1.9 (SDC), with high electronic conductivity, moderate electronic conductivity and dominant oxygen-ion conductivity, respectively, are systematically investigated. Silver and insulating ceramic are used as two different sealants. The effects of external short circuit for electronic conduction by applying silver sealant and potential contamination effect of ceramic sealant on membranes were taken into major consideration. PBC membranes with either silver or ceramic as sealant showed comparable oxygen permeation flues during the test. Similar conclusions were also obtained based on BSCF5582 membranes. As for SDC membrane, significant promotion of the permeation flux by applying silver sealant was clearly demonstrated. Explanations for these performance changes are proposed. The findings from this study may provide valuable insight to explain the discrepancy of oxygen permeation fluxes of some membranes as reported by different research groups in the literature.

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