Facile synthesis of concave decahedra enclosed by high-index facets and truncated decahedra with a large size

被引：6

作者：

Zhang, Lin-Fei ^{[1
]}

Wang, Lei ^{[1
]}

Zhong, Sheng-Liang ^{[1
,2
]}

Huang, Yu-Xi ^{[1
]}

Xu, An-Wu ^{[1
]}

机构：

[1] Univ Sci & Technol China, Div Nanomat & Chem, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China

[2] Jiangxi Normal Univ, Coll Chem & Chem Engn, Nanchang 330022, Peoples R China

来源：

DALTON TRANSACTIONS | 2012年 / 41卷 / 16期

基金：

中国国家自然科学基金;

关键词：

SHAPE-CONTROLLED SYNTHESIS; PLATINUM NANOCRYSTALS; GOLD NANOPARTICLES; COMPLEX; SURFACES;

D O I：

10.1039/c2dt12469f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nanostructures with concave surfaces are not common, and their synthesis is still challenging. In this paper, we have successfully synthesized two kinds of five-fold-twinned Au decahedra and dodecagonal plates by changing the reaction conditions. 40 high-index {221} facets were observed in the concave decahedron. The truncated decahedral gold nanocrystals (NCs) with a large size of 250-350 nm were obtained for the first time, which breaks the assumption that the truncated five-fold-twinned Au nanoparticles (NPs) can only be obtained with a size below 5 nm. The growth mechanism and the evolution process of the gold nanostructures were discussed. This work provides a facile way to synthesize concave decahedra, truncated decahedra and dodecagonal plates with controlled nanostructures.

引用

页码：4948 / 4954

页数：7

共 37 条

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