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  • Enhanced Thermochemical Water Splitting through Formation of Oxygen Vacancy in La0.6Sr0.4BO3−δ (B=Cr, Mn, Fe, Co, and Ni) Perovskites

    Author(s)
    Wang, Lulu
    Al-Mamun, Mohammad
    Zhong, Yu Lin
    Liu, Porun
    Wang, Yun
    Yang, Hua Gui
    Zhao, Huijun
    Griffith University Author(s)
    Zhao, Huijun
    Liu, Porun
    Wang, Yun
    Zhong, Yulin
    Year published
    2018
    Metadata
    Show full item record
    Abstract
    Oxygen vacancies in catalyst systems play a crucial role in manipulating pivotal redox properties that are strongly dependent on the composition of the material. Herein, for the first time, experimental evidence of a linear correlation between the extent of oxygen vacancy formation in the La0.6Sr0.4BO3 (B=Cr, Mn, Fe, Co, and Ni) perovskite series and H2 generation in two‐step thermochemical water splitting is reported, with detailed materials characterization by means of thermogravimetric analysis, XRD, SEM, TEM, and energy‐dispersive X‐ray spectroscopy. Noteworthy O2 (718 μmol g−1) and H2 (514 μmol g−1) production was ...
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    Oxygen vacancies in catalyst systems play a crucial role in manipulating pivotal redox properties that are strongly dependent on the composition of the material. Herein, for the first time, experimental evidence of a linear correlation between the extent of oxygen vacancy formation in the La0.6Sr0.4BO3 (B=Cr, Mn, Fe, Co, and Ni) perovskite series and H2 generation in two‐step thermochemical water splitting is reported, with detailed materials characterization by means of thermogravimetric analysis, XRD, SEM, TEM, and energy‐dispersive X‐ray spectroscopy. Noteworthy O2 (718 μmol g−1) and H2 (514 μmol g−1) production was achieved by the La0.6Sr0.4CoO3 perovskite in the thermochemical water‐splitting process conducted between 1300 and 900 °C.
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    Journal Title
    ChemPlusChem
    Volume
    83
    Issue
    10
    DOI
    https://doi.org/10.1002/cplu.201800178
    Subject
    Chemical sciences
    Other chemical sciences not elsewhere classified
    Oxygen vacancy
    Perovskite phases
    Redox chemistry
    Transition metals
    Water splitting
    Publication URI
    http://hdl.handle.net/10072/382151
    Collection
    • Journal articles

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