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- Title
Kinetically Controlled Growth of Gold Nanoplates and Nanorods via a One-Step Seed-Mediated Method.
- Authors
Soonchang Hong; Acapulco Jr., Jesus A. I.; Hee-Jeong Jang; Kulkarni, Akshay S.; Sungho Park
- Abstract
In this research, we further developed the one-step seed mediated method to synthesize gold nanoparticles (GNPs) and control their resulting shapes to obtain hexagonal, triangular, rod-shaped, and spherical gold nanostructures. Our method reveals that the reaction kinetics of formation of GNPs with different shapes can be controlled by the rate of addition of ascorbic acid, because this is the critical factor that dictates the energy barrier that needs to be overcome. This in turn affects the growth mechanism process, which involves the adsorption of growth species to gold nanoseeds. There were also observable trends in the dimensions of the GNPs according to different rates of addition of ascorbic acid. We performed further analyses to investigate and confirm the characteristics of the synthesized GNPs.
- Subjects
ANISOTROPY; ISOTROPY subgroups; GOLD nanoparticles; ADSORPTION (Chemistry); CHEMICAL synthesis
- Publication
Bulletin of the Korean Chemical Society, 2014, Vol 35, Issue 6, p1737
- ISSN
0253-2964
- Publication type
Article
- DOI
10.5012/bkcs.2014.35.6.1737