| 表面修饰的金纳米粒子的制作及表征 |
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| 引用本文： | 梁士金,叶勤,木村启作.表面修饰的金纳米粒子的制作及表征[J].暨南大学学报,2002,23(3):20-25. |
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| 作者姓名： | 梁士金 叶勤 木村启作 |
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| 作者单位： | 1. 暨南大学物理学系,广东,广州,510632
2. 姬路工业大学理学部,日本,兵库县,6781297 |
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| 摘 要： | 通过硼氢化钠NaBH4还原金氯酸HAuCl4，成功地制作了羧酸酯表面修饰的金纳米粒子，并用丁二酸硫醇作为硫醇配体稳定剂，抑制了纳米粒子的进一步生长，这种方法有效地把粒径控制在纳米范围内并且粒径分布范围小，只需通过一次反应就可大量地制得1－20nm、具有量子效应的纳米料，用X射线衍射仪、透射式电子显微镜和隧道扫描显微镜对这些粒子进行了检测，证实了大量的粒子都是面心立方结构，硫醇配体在金粒子在表面由化学吸附形成一层单分子膜，隧道扫描显微镜观察到了这一层单分子膜。
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| 关 键 词： | 表面修饰 制作 金纳米粒子 单分子膜 隧道扫描显微镜 纳米材料 结构表征 |
| 文章编号： | 1000-9965(2002)03-0020-06 |
| 修稿时间： | 2002年3月15日 |
The preparation and characterization of surface modified gold nanoparticles |
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| LIANG Shi-jin ,YE Qin ,KIMURA Keisaku.The preparation and characterization of surface modified gold nanoparticles[J].Journal of Jinan University(Natural Science & Medicine Edition),2002,23(3):20-25. |
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| Authors: | LIANG Shi-jin YE Qin KIMURA Keisaku |
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| Institution: | LIANG Shi-jin 1,YE Qin 1,KIMURA Keisaku 2 |
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| Abstract: | Surface modified Au nanoparticles have been synthesized based on the reduction of hydrogen tetrachloroaurate (HAuCl 4) by sodium borohydride (NaBH 4) in methanol. In this method, the stabilizing thiol ligand is mercaptosuccinic acid (MSA), serving as a size controller of nanoparticles. Using ultra sonic to mix the solvent during the chemical procedure, suitable large size nanoparticles (several tens nanometer) and nanorods have been made. The sample was characterized by X-ray diffraction, transmission electron microscopy (TEM) and scanning tunnel microscopy (STM). As a result, a SAM (self-assembled monolayer) of MSA on the surface of Au particles was directly observed by STM. |
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| Keywords: | gold nanoparticles SAM (self-assembled monolayer) STM (scanning tunnel microscopy) |
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