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    Effects of sintering atmospheres on sintering behavior, electrical conductivity and oxygen permeability of mixed-conducting membranes

    Access Status
    Fulltext not available
    Authors
    Chang, X.
    Zhang, C.
    Dong, X.
    Zhou, W.
    Jin, W.
    Shao, Zongping
    Xu, N.
    Date
    2008
    Type
    Journal Article
    
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    Citation
    Chang, X. and Zhang, C. and Dong, X. and Zhou, W. and Jin, W. and Shao, Z. and Xu, N. 2008. Effects of sintering atmospheres on sintering behavior, electrical conductivity and oxygen permeability of mixed-conducting membranes. Journal of Membrane Science. 316 (1-2): pp. 128-136.
    Source Title
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2007.09.040
    ISSN
    0376-7388
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/40124
    Collection
    • Curtin Research Publications
    Abstract

    Effects of sintering atmospheres on properties of SrCo0.4Fe0.5Zr0.1O3-d mixed-conducting membranes were in detail studied in terms of sintering behavior, electrical conductivity and oxygen permeability. The sintering atmospheres were 100% N2, 79% N2-21% O2, 60% N2-40% O2, 40% N2-60% O2, 20% N2-80% O2 and 100% O2 (in vol.%), and the prepared membranes were correspondingly denoted as S-0, S-21, S-40, S-60, S-80 and S-100, respectively. It was found that the properties of membranes were strongly dependent on the sintering atmosphere. As the oxygen partial pressure in the sintering atmosphere (PO2) increased, sintering ability, electrical conductivity and oxygen permeability decreased at first, which was in the order of S-0 > S-21 > S-40. However, as PO2 increased further, sintering ability, electrical conductivity and oxygen permeability increased gradually: S-40 < S-60 < S-80 < S-100. And the S-100 membrane had the best sintering ability, electrical conductivity and oxygen permeability in all membranes. © 2007 Elsevier B.V. All rights reserved.

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