NDLI: Shape-directional growth of Pt and Pd nanoparticles

Content Provider	Royal Society of Chemistry (RSC)
Author	Strand, Matthew B Dinh, Huyen N. Gilmer, George H. Kodambaka, Suneel Ciobanu, Cristian V. Ebnonnasir, Abbas Pivovar, Bryan Richards, Ryan M. Frisco, Sarah L. Maloney, David Schulze, Maxwell C. Ngo, Chilan Leong, G. Jeremy
Copyright Year	2014
Abstract	The design and synthesis of shape-directed nanoscale noble metal particles have attracted much attention due to their enhanced catalytic properties and the opportunities to study fundamental aspects of nanoscale systems. As such, numerous methods have been developed to synthesize crystals with tunable shapes, sizes, and facets by adding foreign species that promote or restrict growth on specific sites. Many hypotheses regarding how and why certain species direct growth have been put forward, however there has been no consensus on a unifying mechanism of nanocrystal growth. Herein, we develop and demonstrate the capabilities of a mathematical growth model for predicting metal nanoparticle shapes by studying a well known procedure that employs AgNO3 to produce {111} faceted Pt nanocrystals. The insight gained about the role of auxiliary species is then utilized to predict the shape of Pd nanocrystals and to corroborate other shape-directing syntheses reported in literature. The fundamental understanding obtained herein by combining modeling with experimentation is a step toward computationally guided syntheses and, in principle, applicable to predictive design of the growth of crystalline solids at all length scales (nano to bulk).
Starting Page	11364
Ending Page	11371
Page Count	8
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	6
Issue Number	19
Journal	Nanoscale
DOI	10.1039/c4nr02755h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Nanoparticle Noble metal Nanocrystal
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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