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| 纳米银掺杂二氧化硅复合颗粒的制备及表征 | |
| 引用本文： | 齐朔,陈东,唐芳琼,任湘菱,谢辅洲.纳米银掺杂二氧化硅复合颗粒的制备及表征[J].无机化学学报,2006,22(1):161-165. |
| 作者姓名： | 齐朔 陈东 唐芳琼 任湘菱 谢辅洲 |
| 作者单位： | 1. 中国科学院理化技术研究所,北京,100101;哈尔滨工程大学材料系,哈尔滨,150001 2. 中国科学院理化技术研究所,北京,100101 3. 哈尔滨工程大学材料系,哈尔滨,150001 |
| 基金项目： | 国家科技攻关项目;中国科学院资助项目 |
| 摘 要： | 0引言金属纳米颗粒因其粒子尺寸小(1￣100nm),比表面积大,表面原子数多,表面能和表面张力随粒径的下降急剧增大而具有量子尺寸效应1]、小尺寸效应2]、表面效应3]及宏观量子隧道效应4]等,从而出现了不同于常规固体的新奇特性,如:光学性质、磁性质以及电磁学性质5],使其在催化、信息存储及非线性光学等领域展示了广阔的应用前景6]。虽然制备金属纳米颗粒的方法有很多6],但是由于纳米尺寸的金属颗粒具有较高的表面能,容易发生聚集,所以如何保持其稳定性依旧是比较困难的问题。随着纳米科技的发展,人们正尝试用各种方法来解决这个问题:如… |
| 关 键 词： | 银 二氧化硅 掺杂 纳米复合颗粒 |
| 文章编号： | 1001-4861(2006)01-0161-05 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005-08-22 |
Monodispersed Silica Composite Spheres Doped with Silver Nanoparticles |
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| QI Shuo,CHEN Dong,TANG Fang-Qiong,REN Xiang-Ling and XIE Fu-Zhou.Monodispersed Silica Composite Spheres Doped with Silver Nanoparticles[J].Chinese Journal of Inorganic Chemistry,2006,22(1):161-165. | |
| Authors: | QI Shuo CHEN Dong TANG Fang-Qiong REN Xiang-Ling and XIE Fu-Zhou |
| Affiliation: | Technical Institute of Physics and Chemistry,Chinese Academy of Sciences, Beijing 100101;Institue of Materials, Harbin Engineering University, Harbin 150001,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences, Beijing 100101,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences, Beijing 100101,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences, Beijing 100101 and Institue of Materials, Harbin Engineering University, Harbin 150001 |
| Abstract: | A novel method was developed to fabricate monodispersed nanocomposite SiO2 sphere (200~400 nm) containing homogeneously dispersed Ag nanoparticles (2~6 nm). The morphology of inclusion was controlled through the N-3-(Trimethoxysilyl)Propyl]ethylene diamine. TEM images showed that the silver nanoparticles were doped uniformly in silica spheres. UV-Vis showed that the doped silver nanoparticles have a plasmon resonance absorption band at 433 nm. Also SEM, EDX, XRD analyses were conducted to characterize thus-prepared samples. |
| Keywords: | silver silica doping nanocomposite particles |
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