Monolayer-protected gold nanoparticle coalescence induced by photogenerated radicals

被引：24

作者：

Kell, AJ ^{[1
]}

Alizadeh, A ^{[1
]}

Yang, L ^{[1
]}

Workentin, MS ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada

来源：

LANGMUIR | 2005年 / 21卷 / 21期

关键词：

D O I：

10.1021/la051655m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Acyl and alkyl radicals generated photochemically in a solution containing monolayer-protected gold nanoparticles are shown to efficiently liberate the alkylthiolate ligands into the solution as the thioacetyl or alkyl sulfide, respectively. This radical-induced reaction initiates a coalescence of the gold cores to facilitate an increase in core size. The photoinitiated radical reaction also liberates monolayers from two-dimensional gold surfaces.

引用

页码：9741 / 9746

页数：6

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