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Seed-Mediated Synthesis of Truncated Gold Decahedrons with a AuCl/Oleylamine Complex as Precursor

Authors

  • Yanyun Ma,

    1. Department of Biomedical Engineering Washington University St. Louis, MO 63130 (USA)
    2. State Key Laboratory for Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen, Fujian 361005 (P. R. China)
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  • Jie Zeng,

    1. Department of Biomedical Engineering Washington University St. Louis, MO 63130 (USA)
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  • Weiyang Li,

    1. Department of Biomedical Engineering Washington University St. Louis, MO 63130 (USA)
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  • Maureen McKiernan,

    1. Department of Chemistry, Washington University St. Louis, MO 63130 (USA)
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  • Zhaoxiong Xie,

    1. State Key Laboratory for Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen, Fujian 361005 (P. R. China)
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  • Younan Xia

    Corresponding author
    1. Department of Biomedical Engineering Washington University St. Louis, MO 63130 (USA)
    • Department of Biomedical Engineering Washington University St. Louis, MO 63130 (USA).
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Abstract

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A seed-mediated growth method is described for the synthesis of a novel type of Au nanoparticles—truncated decahedrons with a pentagonal, platelike structure (see figure). The precursor is based on the AuCl/oleylamine complex. TEM analyses reveal that the truncated Au nanoparticle has two types of truncation: one is parallel to the five-fold axis and the other is perpendicular to the five-fold axis.

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