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    B-Site Cation Ordered Double Perovskites as Efficient and Stable Electrocatalysts for Oxygen Evolution Reaction

    Access Status
    Fulltext not available
    Authors
    Sun, H.
    Chen, G.
    Zhu, Y.
    Liu, B.
    Zhou, W.
    Shao, Zongping
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Sun, H. and Chen, G. and Zhu, Y. and Liu, B. and Zhou, W. and Shao, Z. 2017. B-Site Cation Ordered Double Perovskites as Efficient and Stable Electrocatalysts for Oxygen Evolution Reaction. Chemistry - A European Journal. 23 (24): pp. 5722-5728.
    Source Title
    Chemistry - A European Journal
    DOI
    10.1002/chem.201700507
    ISSN
    0947-6539
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/53557
    Collection
    • Curtin Research Publications
    Abstract

    Simple disordered perovskite oxides have been intensively exploited as promising electrocatalysts for the oxygen evolution reaction (OER) towards their application in water splitting, reversible fuel cells, and rechargeable metal-air batteries. Here, the B-site cation-ordered double perovskites Ba2BixSc0.2Co1.8-xO6-d, with two types of cobalt local environments, are demonstrated to be superior electrocatalysts for OER in alkaline solution, demonstrating ultrahigh catalytic activity. In addition, no obvious performance degradation is observed for the Ba2Bi0.1Sc0.2Co1.7O6-d sample after a continuous chronopotentiometry test. The critical role of the ordered [Co2+] and [Sc3+, Bi5+, Co3+] dual environments in improving OER activity is exhibited. These results indicate that B-site cation-ordered double perovskite oxides may represent a new class of promising electrocatalysts for the OER in sustainable energy storage and conversion systems.

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