Preparation and assembly of colloidal gold nanoparticles in CTAB-stabilized reverse microemulsion

被引:89
作者
Chen, FX [1 ]
Xu, GQ [1 ]
Hor, TSA [1 ]
机构
[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
关键词
nanomaterials; self-organization; metals and alloys;
D O I
10.1016/S0167-577X(03)00048-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Monodisperse colloidal Au nanospheres (ca. 7 nm) in hexane are prepared in quaternary CTAB/n-pentanol/hexane/water reverse nucroemulsion (CTAB stands for cetyltrimethylammonium bromide). Their self-assembled, linear/circular arrangements and polyaniline,(PANi)-induced hexagonal patterns are observed on carbon-coated copper grids by TEM. The results are compared with those obtained in CTAB/n-butanol/octane/water reverse microemulsion. The homogeneity in size and shape of our as-made Au nanoparticles observed in TEM is attributed to the compact CTAB/n-pentanol interfacial film and high volatility of hexane. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:3282 / 3286
页数:5
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