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    Enhanced Oxygen Permeation Behavior of Ba0.5Sr0.5Co0.8Fe0.2O3-d Membranes in a CO2-Containing Atmosphere with a Sm0.2Ce0.8O1.9 Functional Shell

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    Fulltext not available
    Authors
    Zhang, K.
    Zhang, C.
    Zhao, L.
    Meng, B.
    Liu, J.
    Liu, Shaomin
    Date
    2016
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhang, K. and Zhang, C. and Zhao, L. and Meng, B. and Liu, J. and Liu, S. 2016. Enhanced Oxygen Permeation Behavior of Ba0.5Sr0.5Co0.8Fe0.2O3-d Membranes in a CO2-Containing Atmosphere with a Sm0.2Ce0.8O1.9 Functional Shell. Energy and Fuels. 30 (3): pp. 1829-1834.
    Source Title
    Energy and Fuels
    DOI
    10.1021/acs.energyfuels.5b02218
    ISSN
    0887-0624
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/37363
    Collection
    • Curtin Research Publications
    Abstract

    The deployment of clean energy technologies has faced an uphill battle to reduce the cost. Ion-conducting membranes for cost-effective oxygen production help to overcome this bottleneck. The existing high-performance perovskite membrane, such as Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF), is featured with a short running life as a result of the low material stability; surface decoration with a robust ion-conducting layer is one of the important strategies for improvement. To this purpose, in this work, an ultrathin dense Sm0.2Ce0.8O1.9 (SDC) with approximate 100 nm thickness has been successfully coated on the BSCF perovskite membrane surface for highly efficient oxygen production. In comparison to the pristine BSCF membrane, this new modified structure offers the enhanced performance of oxygen flux as a result of the better surface-exchange kinetics. Most importantly, the long-term oxygen permeation test under a CO2 atmosphere shows that the SDC-shell-protected BSCF membrane has improved stability comparable to the pure BSCF membrane.

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