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Solvothermal fabrication of uniform silver nanowires

机译:溶剂热法制备均匀的银纳米线

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摘要

Conventional polyol synthesis has been widely used for the preparation of silver nanostructures with different morphologies. However, there is a drawback that it is difficult to control the reaction parameters for shape-controlled synthesis of silver nanostructures, such as the rate of the addition of silver ions to the solution. In this paper, we combine polyol process and solvothermal method for easily synthesizing silver nanostructures. Importantly, the introduction of cuprous chloride (CuCl) to the reaction leads to increasing the population of twinned Ag seeds (required for wire growth) at the expense of that of single Ag seeds. Silver nanowires (Ag NWs) with uniform width (~80 nm in width) can be obtained in the presence of poly(vinyl pyrrolidone) (PVP). Some other parameters, such as the reaction temperature and molar ratios of the repeating unit of PVP to AgNO_3 (R), also have been discussed. A possible mechanism is put forward to understand the evolution of silver nanostructures.
机译:常规的多元醇合成已被广泛用于制备具有不同形态的银纳米结构。然而,存在的缺点是难以控制用于银纳米结构的形状受控合成的反应参数,例如向溶液中添加银离子的速率。在本文中,我们将多元醇工艺与溶剂热法相结合,以轻松合成银纳米结构。重要的是,将氯化亚铜(CuCl)引入反应中会导致孪晶Ag种子(导线生长所需)的数量增加,而单个Ag种子的数量却增加了。在聚乙烯吡咯烷酮(PVP)存在的情况下,可以获得宽度均匀(宽度约80 nm)的银纳米线(Ag NWs)。还讨论了一些其他参数,例如反应温度和PVP重复单元与AgNO_3(R)的摩尔比。提出了一种可能的机制来理解银纳米结构的演变。

著录项

  • 来源
    《Journal of materials science》 |2012年第11期|2035-2041|共7页
  • 作者

    Gang Zhu; Dapeng Chen;

  • 作者单位

    Wuhan Institute of Marine Electric Propulsion, CSIC, Wuhan 430064, Hubei, People's Republic of China;

    Wuhan Institute of Marine Electric Propulsion, CSIC, Wuhan 430064, Hubei, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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