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    Perovskite/Carbon Composites: Applications in Oxygen Electrocatalysis

    Access Status
    Fulltext not available
    Authors
    Zhu, Y.
    Zhou, W.
    Shao, Zongping
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhu, Y. and Zhou, W. and Shao, Z. 2017. Perovskite/Carbon Composites: Applications in Oxygen Electrocatalysis. Small. 13 (12): Article 1603793.
    Source Title
    Small
    DOI
    10.1002/smll.201603793
    ISSN
    1613-6810
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/50495
    Collection
    • Curtin Research Publications
    Abstract

    Oxygen electrocatalysis, i.e., oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), plays an extremely important role in oxygen-based renewable-energy technologies such as rechargeable metal-air batteries, regenerative fuel cells and water splitting. Perovskite oxides have recently attracted increasing interest and hold great promise as efficient ORR and OER catalysts to replace noble-metal-based catalysts, owing to their high intrinsic catalytic activity, abundant variety, low cost, and rich resources. The introduction of perovskite-carbon interfaces by forming perovskite/carbon composites may bring a synergistic effect between the two phases, thus benefiting the oxygen electrocatalysis. This review provides a comprehensive overview of recent advances in perovskite/carbon composites for oxygen electrocatalysis in alkaline media, aiming to provide insights into the key parameters that influence the ORR/OER performance of the composites, including the physical/chemical properties and morphologies of the perovskites, the multiple roles of carbon, the synthetic method and the synergistic effect. A special emphasis is placed on the origin of the synergistic effect associated with the interfacial interaction between the perovskite and the carbon phases for enhanced ORR/OER performance. Finally, the existing challenges and the future directions for the synthesis and development of more efficient oxygen catalysts based on perovskite/carbon composites are proposed.

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