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化学学报
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化学学报 ›› 2004, Vol. 62 ›› Issue (18): 1771-1774. 上一篇    下一篇

研究论文

光化学法合成银纳米线及其形成机理的研究

邹凯1, 张晓宏2, 吴世康2, 段晓峰3   

  1. 1. 中国科学院理化技术研究所, 北京, 100101;
    2. 中国科学院物理研究所, 北京电子显微镜实验室, 北京, 100080
  • 投稿日期:2003-12-24 修回日期:2004-03-16 发布日期:2014-02-17
  • 通讯作者: 张晓宏,E-mail:shikangwu@yahoo.com;吴世康,E-mail:zhangxh8@yahoo.com E-mail:shikangwu@yahoo.com;zhangxh8@yahoo.com
  • 基金资助:
    国家973(No.2001CB610502)和中国科学院资助项目.

Synthesis of Silver Nanowires by the Photochemical Method and Their Formation Mechanism

ZOU Kai1, ZHANG Xiao-Hong2, WU Shi-Kang2, DUAN Xiao-Feng3   

  1. 1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101;
    2. Beijing Laboratory of Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
  • Received:2003-12-24 Revised:2004-03-16 Published:2014-02-17

PDF

956

被引次数

182

结合晶种法和光化学还原法,在聚乙烯吡咯烷酮(PVP)的诱导下成功地制备出直径为50～120nm,长度约为50μm的银纳米线以及银的树枝状纳米结构.实验表明各种反应条件如聚乙烯吡咯烷酮和硝酸银的摩尔比、晶种的加入量及反应时间等对纳米产物的形貌有影响.根据实验结果提出了一种新的银纳米线的形成机理.

关键词: 银纳米线, 银的树状纳米结构, UV幅照, 晶种法, PVP

Using seed-mediated and photochemical reduction approach in the presence of poly(vinyl pyrrolidone) (PVP), Ag nanowires with diameters of 50～120 nm and lengths up to ～50 μm and elegant silver dendrites were prepared at room temperature. It was found that experimental conditions including the molar ratio of PVP to AgNO3, the volume of silver seeds, and the reaction time all play influential roles in the formation of silver nanostructures. The mechanisms of formation of those silver nanostructures were discussed preliminarily.

Key words: silver nanowire, silver nanodendrite, UV irradiation, seed0ediated, PVP