Please use this identifier to cite or link to this item: https://doi.org/10.1021/nn800531q
Title: Monodisperse icosahedral Ag, Au, and Pd nanoparticles: Size control strategy and superlattice formation
Authors: Zhang, Q. 
Xie, J. 
Yang, J.
Lee, J.Y. 
Keywords: Monodisperse
Multiply twinned particles
Nanoparticles
Noble metal
Self-assembly
Issue Date: Jan-2009
Citation: Zhang, Q., Xie, J., Yang, J., Lee, J.Y. (2009-01). Monodisperse icosahedral Ag, Au, and Pd nanoparticles: Size control strategy and superlattice formation. ACS Nano 3 (1) : 139-148. ScholarBank@NUS Repository. https://doi.org/10.1021/nn800531q
Abstract: This paper reports the synthesis and self-assembly of monodisperse icosahedral Ag, Au, and Pd nanoparticles with tunable sizes. Ag nanoparticles were first prepared by a modified polyol method. The as-synthesized Ag nanoparticles were all icosahedral multiply twinned particles (MTPs) with notable size variations. The variability was reduced to less than 5% after a digestive ripening post treatment. The nearly monodisperse Ag nanoparticles were then used in replacement reactions with Au and Pd precursors to produce monodisperse icosahedral Au and Pd nanoparticles. The size of the monodisperse icosahedral Ag, Au, and Pd nanoparticles could also be increased thereafter by seed-mediated growth. The closely matched geometrical attributes of these icosahedral nanoparticles allowed them to easily self-assemble into 3-D superlattices either in the solution phase or on a solid substrate. © 2009 American Chemical Society.
Source Title: ACS Nano
URI: http://scholarbank.nus.edu.sg/handle/10635/89494
ISSN: 19360851
DOI: 10.1021/nn800531q
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