Issue 4, 2010
From the journal:

CrystEngComm

On the structure of stellated single crystal Au/Agnanoparticles

Alvaro Mayoral,a   Alma Vazquez-Duran,a   Domingo Ferrer,b   Juan Martin Montejano-Carrizalesc  and  Miguel Jose-Yacaman*a  

* Corresponding authors

a Department of Physics and Astronomy, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX, USA
E-mail: miguel.yacaman@utsa.edu
Fax: +1 210 458-4919
Tel: +1 210 458-5451

b Microelectronics Research Center, The University of Texas at Austin, 10100 Burnet Road, Austin, TX, USA

c Instituto de Física, Universidad Autónoma de San Luis de Potosí, San Luis de Potosí, S. L. P., México

Abstract

Stellated Au/Ag nanoparticles have been synthesized in ascorbic acid in the presence of CTAB using Ag nanoparticles as seeding points. The composition of the materials obtained has been characterized by EDX. High-resolution transmission electron microscopy has been employed to analyze the structure of the nanoparticles and weak-beam dark field transmission electron microscopy (WBDF) was used to acquire 3D images and elucidate the morphology of the materials and study the formation or absence of defects in the crystals. Stellated Au/Ag has been found to grow free of defects presenting a single crystal structure; meanwhile twin planes are present in all elongated nanoparticles.

Graphical abstract: On the structure of stellated single crystal Au/Ag nanoparticles

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Article information

DOI
https://doi.org/10.1039/B914749G
Article type
Paper
Submitted
21 Jul 2009
Accepted
15 Oct 2009
First published
12 Nov 2009

CrystEngComm, 2010,12, 1090-1095

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On the structure of stellated single crystal Au/Ag nanoparticles

A. Mayoral, A. Vazquez-Duran, D. Ferrer, J. M. Montejano-Carrizales and M. Jose-Yacaman, CrystEngComm, 2010, 12, 1090 DOI: 10.1039/B914749G

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