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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Comparison of Physical Adsorption Strength of Protective Agents via Ligand Exchange of Silver Nanoparticles Prepared by Vacuum Evaporation on Running Oil Substrate
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Comparison of Physical Adsorption Strength of Protective Agents via Ligand Exchange of Silver Nanoparticles Prepared by Vacuum Evaporation on Running Oil Substrate

机译：用真空蒸发制备的银纳米粒子配体交换物理吸附强度的比较蒸发油衬底

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摘要

We compared adsorption strength of protective agents via ligand exchange of silver nanoparticles synthesized by the improved vacuum evaporation on running oil substrate (VEROS) method. This comparison concerns physical adsorption of protective agents on the surface of silver nanoparticles instead of chemisorption. Clean surfaces of silver nanoparticles synthesized by the improved VEROS method were suitable for this investigation. All the experiments in this study were designed so that as far as possible protective agents did not ionize. Thus, oleic acid capped silver nanoparticles were synthesized by the improved VEROS method. Next, octanoic acid, n-octylamine and oleic acid were used as additive protective agents in ligand exchanges. The ligand exchange is also closely related to physical adsorption strength of protective agents on the surface of metal nanoparticles. Oleic acid on the surface of silver nanoparticles was exchanged by octanoic acid and vice versa under the same experimental conditions. On the other hand, oleic acid on the silver surface was not exchanged by n-octylamine. These results were remarkably different from those reported in general chemical synthetic methods but they were well consistent with our previous study on performance of protective agents in the synthesis of silver nanoparticles with the improved VEROS method.
机译：我们通过改进的油衬底（Veros）法通过改进的真空蒸发合成的银纳米颗粒的配体交换进行了对保护剂的吸附强度。这种比较涉及银纳米粒子表面上的保护剂而不是化学吸附的物理吸附。通过改进的VEROS方法合成的银纳米粒子的清洁表面适用于这一调查。本研究中的所有实验都是设计的，因此尽可能保护的保护剂没有电离。因此，通过改进的Veros方法合成油酸覆盖银纳米颗粒。接下来，使用辛酸，正辛胺和油酸作为配体交换中的添加剂保护剂。配体交换也与金属纳米颗粒表面上保护剂的物理吸附强度密切相关。通过辛酸更换银纳米颗粒表面的油酸，反之亦然在相同的实验条件下。另一方面，银表面上的油酸不被N-辛胺交换。这些结果与一般化学合成方法报告的结果显着不同，但它们与我们以前的研究在合成银纳米颗粒的性能和改进的Veros方法中的合成中的研究良好。

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    Ienaga Takashi; Okada Soichiro; Nakahara Yoshio; Watanabe Mitsuru; Tamai Toshiyuki; Yajima Setsuko; Kimura Keiichi;

  • 作者单位

    Wakayama Univ Fac Syst Engn Dept Appl Chem 930 Sakae Dani Wakayama 6408510 Japan;

    Wakayama Univ Fac Syst Engn Dept Appl Chem 930 Sakae Dani Wakayama 6408510 Japan;

    Wakayama Univ Fac Syst Engn Dept Appl Chem 930 Sakae Dani Wakayama 6408510 Japan;

    Osaka Res Inst Ind Sci &

    Technol Morinomiya Ctr Joto Ku 1-6-50 Morinomiya Osaka 5368553 Japan;

    Osaka Res Inst Ind Sci &

    Technol Morinomiya Ctr Joto Ku 1-6-50 Morinomiya Osaka 5368553 Japan;

    Wakayama Univ Fac Syst Engn Dept Appl Chem 930 Sakae Dani Wakayama 6408510 Japan;

    Wakayama Univ Fac Syst Engn Dept Appl Chem 930 Sakae Dani Wakayama 6408510 Japan;

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  • 正文语种 eng
  • 中图分类 化学;
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