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Advanced Materials

High-Performance Oxygen-Permeable Membranes with an Asymmetric Structure Using Ba0.95La0.05FeO3−δ Perovskite-Type Oxide

Authors

  • Ken Watenabe,

    1. Department of Molecular and Material Sciences Interdisciplinary Graduate School of Engineering Science Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan)
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  • Masayoshi Yuasa,

    1. Faculty of Engineering Sciences Department of Material Sciences Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan)
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  • Tetsuya Kida,

    1. Faculty of Engineering Sciences Department of Material Sciences Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan)
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  • Yasutake Teraoka,

    1. Faculty of Engineering Sciences Department of Material Sciences Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan)
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  • Noboru Yamazoe,

    1. Faculty of Engineering Sciences Department of Material Sciences Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan)
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  • Kengo Shimanoe

    Corresponding author
    1. Faculty of Engineering Sciences Department of Material Sciences Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan)
    • Faculty of Engineering Sciences Department of Material Sciences Kyushu University Kasuga-Koen 6-1, Kasuga-shi, Fukuoka 816-8580 (Japan).
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Abstract

High oxygen permeability was achieved using an asymmetric Ba0.95La0.05FeO3−δ membrane. In this membrane, oxygen diffuses physically through pores of a porous support and oxygen permeates electrochemically through a dense layer. The oxygen permeation flux of the asymmetric Ba0.95La0.05FeO3−δ membrane reached more than 10 cm3 (STP) min−1 cm−2 from a test gas containing 50% oxygen at 930 °C.

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