Theoretical Description of the Role of Halides, Silver, and Surfactants on the Structure of Gold Nanorods

被引：150

作者：

Almora-Barrios, Neyvis ^{[1
]}

Novell-Leruth, Gerard ^{[1
]}

Whiting, Peter ^{[1
]}

Liz-Marzan, Luis M. ^{[2
,3
]}

Lopez, Nuria ^{[1
]}

机构：

[1] ICIQ, Inst Chem Res Catalonia, Tarragona 43007, Spain

[2] CIC biomaGUNE, BioNanoPlasmon Lab, Donostia San Sebastian 20009, Spain

[3] Basque Fdn Sci, Ikerbasque, Bilbao, Spain

来源：

NANO LETTERS | 2014年 / 14卷 / 02期

关键词：

Gold nanorods; surfactants; halides; DFT; symmetry breaking; TOTAL-ENERGY CALCULATIONS; GROWTH-MECHANISM; BROMIDE COMPLEX; SHAPE CONTROL; NANOPARTICLES; METALS; ADLAYERS; SURFACES; CRYSTAL; FACETS;

D O I：

10.1021/nl404661u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Density functional theory simulations including dispersion provide an atomistic description of the role of different compounds in the synthesis of gold-nanorods. Anisotropy is caused by the formation of a complex between the surfactant, bromine, and silver that preferentially adsorbs on some facets of the seeds, blocking them from further growth. In turn, the nanorod structure is driven by the perferential adsorption of the surfactant, which induces the appearance of open {520} lateral facets.

引用

页码：871 / 875

页数：5

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