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Stabilization of Low-Temperature Degradation in Mixed Ionic and Electronic Conducting Perovskite Oxygen Permeation Membranes

Authors

  • Yan Liu,

    1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)
    2. University of Chinese Academy of Sciences, Beijing, 100039 (China)
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  • Dr. Xuefeng Zhu,

    Corresponding author
    1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)
    • State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)

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  • Dr. Mingrun Li,

    1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)
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  • Huanyin Liu,

    1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)
    2. University of Chinese Academy of Sciences, Beijing, 100039 (China)
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  • You Cong,

    1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)
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  • Prof. Dr. Weishen Yang

    Corresponding author
    1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)
    • State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (China)

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  • This work is supported by the NSFC (grant number 21271169/21061130534) and the Fund of the State Key Laboratory of Catalysis (grant number R201107). We also thank Prof. Ryan O’Hayre for his suggestion and comments and the Chinese Academy of Sciences Visiting Professorships (grant number 2012T1G0015).

Abstract

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An important degradation mechanism of perovskite membranes is related to the operation-induced surface segregation of trace impurities of sulfur that appears to dramatically impact the low-temperature permeation behavior. A simple but remarkably effective method is reported that enables the low-temperature stabilization of the permeation flux in these perovskite membranes (see picture).

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