| 在SiO2表面合成光滑纳米银壳的新方法——热裂解-熔流法 |
| New Route for Preparation of Smooth Silver Nanoshells on Silica Spheres |
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| 摘要: |
| 关键词: 纳米银壳 银等离子共振 单分散二氧化硅球 |
| 基金项目: |
| Abstract: A new route for the preparation of silver nanoshells on silica spheres, leading to the establishment of a simple, efficient and easy-to-scale-up way for the synthesis of smooth silver nanoshells on silica monodispersed spheres, is reported through transforming the silver oxide shell to zero-valence silver by thermal cracking, applying surface strain theory to alter the shape of core-metal shell colloidal and form smooth metal nanoshell in hot inert flowing liquid. SEM images show that the silver nanoshells may be formed at 130 ℃ and deformed at 180 ℃ in hot inert flowing liquid. XRD indicates the formation of cubic structure pure silver with high crystallinity. Also, EDX and UV diffuse reflection spectrum analyses were conducted to characterize the as-prepared samples. |
| Keywords: silver nanoshell silver plasma resonance monodisperse silica sphere particles |
| 投稿时间：2004-12-27 修订日期：2005-04-01 |
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| 陈渊,曹静,唐芳琼,任俊.在SiO2表面合成光滑纳米银壳的新方法——热裂解-熔流法[J].无机化学学报,2005,21(6):792-795. |
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