Understanding nanoparticle-mediated nucleation pathways of anisotropic nanoparticles

Christine R. Laramy, Lam Kiu Fong, Matthew R. Jones, Matthew N. O'Brien, George C. Schatz, Chad A. Mirkin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Several seed-mediated syntheses of low symmetry anisotropic nanoparticles yield broad product distributions with multiple defect structures. This observation challenges the role of the nanoparticle precursor as a seed for certain syntheses and suggests the possibility of alternate nucleation pathways. Herein, we report a method to probe the role of the nanoparticle precursor in anisotropic nanoparticle nucleation with compositional and structural 'labels' to track their fate. We use the synthesis of gold triangular nanoprisms (Au TPs) as a model system. We propose a mechanism in which, rather than acting as a template, the nanoparticle precursor catalyzes homogenous nucleation of Au TPs.

Original languageEnglish
JournalChemical Physics Letters
DOIs
Publication statusAccepted/In press - Dec 6 2016

Fingerprint

Nucleation
nucleation
Nanoparticles
nanoparticles
Seed
seeds
synthesis
Defect structures
Gold
Labels
templates
gold
probes
defects
symmetry
products

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Understanding nanoparticle-mediated nucleation pathways of anisotropic nanoparticles. / Laramy, Christine R.; Fong, Lam Kiu; Jones, Matthew R.; O'Brien, Matthew N.; Schatz, George C.; Mirkin, Chad A.

In: Chemical Physics Letters, 06.12.2016.

Research output: Contribution to journalArticle

Laramy, Christine R. ; Fong, Lam Kiu ; Jones, Matthew R. ; O'Brien, Matthew N. ; Schatz, George C. ; Mirkin, Chad A. / Understanding nanoparticle-mediated nucleation pathways of anisotropic nanoparticles. In: Chemical Physics Letters. 2016.
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