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  • 3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains for in situ SERS monitoring of plasmon-assisted catalytic reactions

    Author(s)
    Ding, Qiandian
    Zhou, Hongjian
    Zhang, Haimin
    Zhang, Yunxia
    Wang, Guozhong
    Zhao, Huijun
    Griffith University Author(s)
    Zhao, Huijun
    Year published
    2016
    Metadata
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    Abstract
    One-dimensional (1D) assembled magnetoplasmonic nanochains (MPNCs) were fabricated using Fe3O4@Au core–shell nanoparticles (NPs) via a magnetic field induced assembly. With the help of a silver growth solution, the 3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains (Fe3O4@Au@Ag NAMPCs) were prepared via an in situ reduction method. A heterogeneous epitaxial growth mechanism was proposed to explain the growth process of the Fe3O4@Au@Ag NAMPCs. The Fe3O4@Au@Ag NAMPCs possessed large numbers of hot spots within the highly ordered structure and were used as a SERS substrate to enhance the sensitivity, uniformity and ...
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    One-dimensional (1D) assembled magnetoplasmonic nanochains (MPNCs) were fabricated using Fe3O4@Au core–shell nanoparticles (NPs) via a magnetic field induced assembly. With the help of a silver growth solution, the 3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains (Fe3O4@Au@Ag NAMPCs) were prepared via an in situ reduction method. A heterogeneous epitaxial growth mechanism was proposed to explain the growth process of the Fe3O4@Au@Ag NAMPCs. The Fe3O4@Au@Ag NAMPCs possessed large numbers of hot spots within the highly ordered structure and were used as a SERS substrate to enhance the sensitivity, uniformity and reproducibility of Raman signals. Subsequently, the Fe3O4@Au@Ag NAMPCs, integrating a heterogeneous catalysis and in situ SERS detection, was assessed to monitor the catalytic reduction of 4-nitrothiophenol (4-NTP) to p,p′-dimercaptoazobenzene (DMAB).
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    Journal Title
    Journal of Materials Chemistry A
    Volume
    4
    Issue
    22
    DOI
    https://doi.org/10.1039/C6TA02264B
    Subject
    Macromolecular and materials chemistry
    Macromolecular and materials chemistry not elsewhere classified
    Materials engineering
    Other engineering
    Publication URI
    http://hdl.handle.net/10072/100168
    Collection
    • Journal articles

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