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  • Efficient water oxidation under visible light by tuning surface defects on ceria nanorods

    Author(s)
    Zhao, Kun
    Qi, Jian
    Yin, Huajie
    Wang, Zumin
    Zhao, Shenlong
    Ma, Xiang
    Wan, Jiawei
    Chang, Lin
    Gao, Yan
    Yu, Ranbo
    Tang, Zhiyong
    Griffith University Author(s)
    Tang, Zhiyong
    Yin, Huajie
    Year published
    2015
    Metadata
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    Abstract
    Fluorite CeO2 nanorods (NRs) with tunable surface defects are successfully prepared via hydrothermal synthesis followed by post-calcination under different atmospheres. Impressively, the CeO2 NRs obtained under mixed Ar and H2 gas at 800 °C exhibit superior catalytic activity towards water oxidation under visible light (λ ≥ 420 nm), which is 10 times higher than that of CeO2 NRs treated under air at 800 °C. Detailed characterization and theoretical analysis reveal that the rich surface defects including surface oxygen vacancies and Ce3+ ions are the origin of the enhanced water oxidation performance of the CeO2 NRs treated ...
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    Fluorite CeO2 nanorods (NRs) with tunable surface defects are successfully prepared via hydrothermal synthesis followed by post-calcination under different atmospheres. Impressively, the CeO2 NRs obtained under mixed Ar and H2 gas at 800 °C exhibit superior catalytic activity towards water oxidation under visible light (λ ≥ 420 nm), which is 10 times higher than that of CeO2 NRs treated under air at 800 °C. Detailed characterization and theoretical analysis reveal that the rich surface defects including surface oxygen vacancies and Ce3+ ions are the origin of the enhanced water oxidation performance of the CeO2 NRs treated under the reduced atmosphere.
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    Journal Title
    Journal of Materials Chemistry A
    Volume
    3
    Issue
    41
    DOI
    https://doi.org/10.1039/c5ta05817a
    Subject
    Macromolecular and materials chemistry
    Macromolecular and materials chemistry not elsewhere classified
    Materials engineering
    Publication URI
    http://hdl.handle.net/10072/172949
    Collection
    • Journal articles

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