The facet selectivity of inorganic ions on silver nanocrystals in etching reactions

被引：23

作者：

Xu, Shuping ^{[1
]}

Tang, Bin ^{[1
]}

Zheng, Xianliang ^{[1
]}

Zhou, Ji ^{[1
]}

An, Jing ^{[1
]}

Ning, Xiaohua ^{[1
]}

Xu, Weiqing ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 41期

基金：

中国国家自然科学基金;

关键词：

SURFACE-PLASMON RESONANCE; REPLACEMENT REACTION; GOLD; NANOSTRUCTURES; WAVELENGTH; NANORINGS; GROWTH; SERS;

D O I：

10.1088/0957-4484/20/41/415601

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The facet selectivity of the halide ions and chlorauric acid for several shaped silver nanocrystals is presented in this paper. Two inorganic ions show different representations when they are used for etching silver nanocrystals in the self-sacrificial template reaction. The morphological changes of the silver nanocrystals indicate that the halide ions prefer to etch the (110) facets of silver nanocrystals, while in the chlorauric acid etching reaction, gold first modifies the (110) facets and then lets chlorauric acid etch the (111) facets instead. The selective facet etching on individual nanoparticles in the solution phase has crucial significance in the control-synthesis of nanocrystals and the facet asymmetric reaction.

引用

页数：7

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