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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 6
BKCSDE 35(6)
June 20, 2014

Title	Kinetically Controlled Growth of Gold Nanoplates and Nanorods via a One-Step Seed-Mediated Method
Author	Soonchang Hong, Jesus A. I. Acapulco Jr., Hee-Jeong Jang, Akshay S. Kulkarni, Sungho Park*
Keywords	Anisotropic, Isotropic, Gold nanoparticles, Growth kinetics, Seed mediated synthesis
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.
Page	1737 - 1742
Full Text	PDF

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