Controlled formation of gold nanoplates and nanobelts in lyotropic liquid crystal phases with imidazolium cations

被引：17

作者：

Wang, L. Y.

Chen, X. ^{[1
]}

Chai, Y. C.

Hao, J. C.

机构：

[1] Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Shandong 250100, Peoples R China

[2] Jinan Univ, Sch Chem & Chem Engn, Shandong 250022, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2007年 / 293卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

gold; nanoplate; lyotropic liquid crystal; nanobelt; imidazolium cation;

D O I：

10.1016/j.colsurfa.2006.07.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single-crystalline gold nanoplates and also nanobelts, with {111} crystallographic facets and size length longer than 20 mu m, are synthesized in large scale by reduction of HAuCl4 in lyotropic liquid crystal phases. Such flat products can be obtained from different systems including hexagonal or lamellar phases made of P123 (EO20PO70EO20) where different ionic liquid like additives play the crucial roles in the product formation. The results demonstrate that the product sizes and morphologies strongly depend on the balance among forces between different components and the adsorption of imidazolium cations on gold through controlling the reduction rates by their molar ratios. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：95 / 100

页数：6

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