Improving oxygen permeability in SrFeCo0.5Ox asymmetric membranes by modifying support-layer porous structure

Masayuki Ikeguchi, Kentaro Ishii, Yasushi Sekine, Eiichi Kikuchi, Masahiko Matsukata

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    38 Citations (Scopus)

    Abstract

    Disk-type SrFeCo0.5Ox asymmetric membranes were prepared for high-temperature oxygen separation using both a previously reported solid state technique in which ethyl cellulose is introduced and then removed by calcination to produce a porous support layer and a modified technique in which carbon fiber is added to the ethyl cellulose. The oxygen permeabilities of the resulting SrFeCo0.5Ox asymmetric membranes were measured at 973-1173 K. The addition of carbon fiber to ethyl cellulose resulted in the improvement of gas diffusivity in the porous support layer, which increased the flux of oxygen through the modified asymmetric membrane.

    Original languageEnglish
    Pages (from-to)1356-1360
    Number of pages5
    JournalMaterials Letters
    Volume59
    Issue number11
    DOIs
    Publication statusPublished - 2005 May

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    Keywords

    • Asymmetric membrane
    • Carbon fiber
    • Ceramic
    • Ethyl cellulose
    • Oxygen permeation
    • SrFeCoO

    ASJC Scopus subject areas

    • Materials Science(all)

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