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  • Multiple Au cores in CeO2 hollow spheres for the superior catalytic reduction of p-nitrophenol

    Author(s)
    Zhao, Kun
    Qi, Jian
    Zhao, Shenlong
    Tang, Hongjie
    Yin, Huajie
    Zong, Lingbo
    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
    In many catalytic systems the structure of the catalyst plays a crucial role in the reaction especially for catalytic reduction, organic pollutant oxidation and other organic transformations. Herein, we report a template-free approach to the synthesis of multiple Au cores in CeO2 hollow spheres (MACCHS). This material was fabricated by impregnating CeO2 hollow spheres with a HAuCl4 aqueous solution. NaBH4 was then used to reduce HAuCl4 to Au nanoparticles to form multiple Au cores in the CeO2 hollow spheres. We used MACCHS as a catalyst for p-nitrophenol reduction and achieved excellent activity. The catalyst showed enhanced ...
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    In many catalytic systems the structure of the catalyst plays a crucial role in the reaction especially for catalytic reduction, organic pollutant oxidation and other organic transformations. Herein, we report a template-free approach to the synthesis of multiple Au cores in CeO2 hollow spheres (MACCHS). This material was fabricated by impregnating CeO2 hollow spheres with a HAuCl4 aqueous solution. NaBH4 was then used to reduce HAuCl4 to Au nanoparticles to form multiple Au cores in the CeO2 hollow spheres. We used MACCHS as a catalyst for p-nitrophenol reduction and achieved excellent activity. The catalyst showed enhanced stability toward p-nitrophenol reduction compared with bare Au nanoparticles and CeO2 hollow spheres. This simple method to achieve multi-core-in-shell hollow structures will likely have applications in various biological, medical and energy related fields.
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    Journal Title
    Chinese Journal of Catalysis (Cuihua Xuebao)
    Volume
    36
    Issue
    3
    DOI
    https://doi.org/10.1016/S1872-2067(14)60273-4
    Subject
    Physical chemistry not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/172938
    Collection
    • Journal articles

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