Next Article in Journal
Different Molecular Weight Chitosan-Based Membranes for Tissue Regeneration
Previous Article in Journal
In vitro Biocompatibility of New Silver(I) Coordination Compound Coated-Surfaces for Dental Implant Applications
Previous Article in Special Issue
Toxicity of Transition Metal Oxide Nanoparticles: Recent Insights from in vitro Studies
Article Menu

Article Versions

Export Article

Open AccessArticle
Materials 2011, 4(2), 368-379; doi:10.3390/ma4020368

Coalescence and Collisions of Gold Nanoparticles

1
CICFIM, Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, San Nicol´as de los Garza, N.L. 66450, Mexico
2
Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX 78249, USA
3
Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología (CIIDIT), Universidad Autónoma de Nuevo León, Apodaca, Nuevo León 66600, Mexico
4
Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P. 48000, Mexico
5
Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, B.C. 22800, Mexico
*
Author to whom correspondence should be addressed.
Received: 28 December 2010 / Revised: 21 January 2011 / Accepted: 27 January 2011 / Published: 28 January 2011
(This article belongs to the Special Issue Metal Nanoparticles)
View Full-Text   |   Download PDF [2364 KB, uploaded 28 January 2011]   |  

Abstract

We study the assembling of small gold clusters subject to collisions and close contact coalescence by using molecular dynamics simulations to simulate events that occur typically in the sputtering process of synthesis. Our results support the notion that the kinetics of coalescence processes strongly determine the geometry and structure of the final particle. While impact velocities, relative orientations, and the initial shape of the interacting particles are unlikely to strictly determine the structural details of the newly formed particle, we found that high initial temperatures and/or impact velocities increase the probability of appearance of icosahedral-like structures, Wulff polyhedra are likely to be formed as a product of the interactions between nanospheres, while the appearance of fcc particles of approximately cuboctahedral shape is mainly due to the interaction between icosahedra.
Keywords: gold nanoparticles; coalescence; collisions; molecular dynamics; common neighbor analysis
gold nanoparticles; coalescence; collisions; molecular dynamics; common neighbor analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Antúnez-García, J.; Mejía-Rosales, S.; Pérez-Tijerina, E.; Montejano-Carrizales, J.M.; José-Yacamán, M. Coalescence and Collisions of Gold Nanoparticles. Materials 2011, 4, 368-379.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top