| 有机分子CTAB对银纳米颗粒形貌的影响 |
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| 引用本文： | 吴青松,赵岩,张彩碚.有机分子CTAB对银纳米颗粒形貌的影响[J].高等学校化学学报,2005,26(8):1405-1409. |
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| 作者姓名： | 吴青松 赵岩 张彩碚 |
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| 作者单位： | 1. 东北大学理学院, 沈阳110004;
2. 中国科学院金属究研究所, 沈阳110016 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 报道了一种有效调节银纳米颗粒形貌的特殊方法.在不同浓度的CTAB有机分子作用下,片状三角形银纳米颗粒形貌发生改变,形成圆形和纺锤形等特殊形貌的银纳米片,研究了CTAB浓度对银纳米颗粒形貌的影响,从实验结果分析了银纳米颗粒形貌发生改变的主要因素.
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| 关 键 词： | 银纳米颗粒 三角形 圆片形 纺锤形 CTAB |
| 文章编号： | 0251-0790（2005）08-1405-05 |
| 收稿时间： | 10 27 2004 12:00AM |
| 修稿时间： | 2004-10-27 |
Effect of Organic Molecule CTAB on Morphologies of Silver Nanoparticles |
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| WU Qing-Song,ZHAO Yan,ZHANG Cai-Bei.Effect of Organic Molecule CTAB on Morphologies of Silver Nanoparticles[J].Chemical Research In Chinese Universities,2005,26(8):1405-1409. |
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| Authors: | WU Qing-Song ZHAO Yan ZHANG Cai-Bei |
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| Institution: | 1. College of Sciences, Northeastern University, Shenyang, 110004, China;
2. Institute of Met al Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| Abstract: | We reported on the dramatic chemical reshaping of silver nanoparticles upon exposure to cetylrimethylammonium bromide(CTAB) in aqueous solutions. In the presence of concentrated CTAB, the triangular silver nanoplates were observed to undergo a morphological change from truncated triangular, elliptic nanoplates to circular nanoplates. When dilute CTAB was employed, the triangular silver nanoplates were transformed into spindle silver nanoplates. Such transfigurations of silver nanoparticles were related to the concentration of bromide ions and organic groups of CTAB in the solutions. By changing the shape of silver nanopartilces their corresponding optical properties were tuned accordingly. |
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| Keywords: | CTAB |
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