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Gold nanospirals

机译:金纳批irals.

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This study used a galvanic displacement reaction for aluminum-gold oxidation-reduction and added surfactants to act as capping agents to control the morphology and size of gold growth. Three surfactants, namely cetyltrimethylammonium bromide, polyvinylpyrrolidone, and poly(ethylene glycol)(12) tridecyl ether, were added to HAuCl4 (aq.) to create novel gold nanospirals (AuNSs) 200-500 nm in diameter and tens of mu m in length. Transmission electron microscopy analysis showed that the AuNSs were face-centered cubic in structure and that growths on the {111} facet were growth twins with mirror symmetry. Used as the base material for surface-enhanced Raman scattering, the structure of the trunk and dendrimers of the AuNSs create numerous hot spots, exhibiting a superior surface enhancement effect.
机译:本研究使用了用于铝 - 金氧化还原的电催化反应,并添加表面活性剂,以充当封端剂以控制黄金生长的形态和大小。 将三种表面活性剂,即甲基三甲基溴化铵,聚乙烯基吡咯烷酮和聚(乙二醇)(12)三烷基醚加入HauCl4(水平)中,以产生直径和长度的直径和数十μm的新型金纳批irals(Auns)200-500nm 。 透射电子显微镜分析表明,肛门在结构上以较中心的立方体,{111}小平面上的生长是具有镜子对称的生长孪晶。 用作表面增强拉曼散射的基材,树干和肛门树枝的结构产生了许多热点,表现出优异的表面增强效果。

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  • 来源
    《RSC Advances》 |2015年第92期|共4页
  • 作者单位

    Natl Taipei Univ Technol Inst Mineral Resources Engn Dept Mat &

    Mineral Resources Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Inst Mineral Resources Engn Dept Mat &

    Mineral Resources Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Inst Mineral Resources Engn Dept Mat &

    Mineral Resources Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Inst Mineral Resources Engn Dept Mat &

    Mineral Resources Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Inst Mineral Resources Engn Dept Mat &

    Mineral Resources Engn Taipei 10608 Taiwan;

    Natl Chiao Tung Univ Dept Appl Chem Hsinchu 300 Taiwan;

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  • 正文语种 eng
  • 中图分类 化学;
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