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    Functional nano-composite oxides synthesized by environmental-friendly auto-combustion within a micro-bioreactor

    Access Status
    Fulltext not available
    Authors
    Zhou, W.
    Shao, Zongping
    Ran, R.
    Jin, W.
    Xu, N.
    Date
    2008
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhou, W. and Shao, Z. and Ran, R. and Jin, W. and Xu, N. 2008. Functional nano-composite oxides synthesized by environmental-friendly auto-combustion within a micro-bioreactor. Materials Research Bulletin. 43 (8-9): pp. 2248-2259.
    Source Title
    Materials Research Bulletin
    DOI
    10.1016/j.materresbull.2007.08.011
    ISSN
    0025-5408
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/37210
    Collection
    • Curtin Research Publications
    Abstract

    Nano-crystalline Sm0.2Ce0.8O1.9 (SDC), Gd0.2Ce0.8O1.9 (GDC), La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF) and NiO (65 wt.%)-GDC powders for applications in solid-oxide fuel cells were synthesized by employing cotton fibers as the micro-bioreactor. As compared with the conventional glycine-nitrate (GN) combustion method, this novel process allows the preparation process to be more environmental-friendly. Furthermore, the particle size of obtained powders could be smaller, attributing to the blocking effect of cellulose on suppressing the particle contact during synthesis. By this innovative method, SDC powder with a particle size as small as ~10 nm, was obtained, which can be easily sintered to dense electrolytes at 1350 °C. The process is also capable for large-scale synthesis. © 2007 Elsevier Ltd. All rights reserved.

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