Preparation of metallodielectric composite particles with multishell structure

被引：47

作者：

Chen, Z ^{[1
]}

Wang, ZL ^{[1
]}

Zhan, P ^{[1
]}

Zhang, JH ^{[1
]}

Zhang, WY ^{[1
]}

Wang, HT ^{[1
]}

Ming, NB ^{[1
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

LANGMUIR | 2004年 / 20卷 / 08期

关键词：

D O I：

10.1021/la035326a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this article, we demonstrated the synthesis of metallodielectric composite particles comprising a metal shell on a dielectric core and an outer coating of an insulating dielectric layer by depositing silver on silica supporting cores followed by coating of titania. A combination of surface reaction and surface seeding techniques is exploited for the formation of a complete silver shell on silica spheres. The additional outer coating of titania on silver shell particles is then performed by hydrolyzing tetra-n-butyl titanate in ethanol at room temperature. The morphologies of silver shells and titania coating are studied with electron microscopy, and their existences are confirmed with X-ray diffraction and energy-dispersive X-ray measurement.

引用

页码：3042 / 3046

页数：5

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