A truncated icosahedral structure observed in gold nanoparticles

被引：97

作者：

Ascencio, JA

Pérez, M

José-Yacamán, M

机构：

[1] Inst Nacl Invest Nucl, Mexico City 06100, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

来源：

SURFACE SCIENCE | 2000年 / 447卷 / 1-3期

关键词：

clusters; electron microscopy; gold; molecular dynamics; surface structure; morphology; roughness; and topography;

D O I：

10.1016/S0039-6028(99)01112-7

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：

In the present work we describe a new type of gold nanoparticle. The particle shape corresponds to a truncated icosahedron which in some orientations appears as an asymmetric decahedron. The particle structure is discussed and the corresponding high resolution electron microscopy images are calculated for the optimum defocusing condition in several orientations, Experimental images of gold nanoparticles are shown that corroborate the truncated icosahedron structure. The evidence suggest that indeed this particle is formed in experimental growth conditions in which the equilibrium shape is achieved. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：73 / 80

页数：8

共 27 条

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