The Completion of the Platonic Atomic Polyhedra: The Dodecahedron

Binary AuPd nanoparticles in the 1–2 nm size range have been imaged by high‐resolution electron microscopy (HREM). A dodecahedral atomic growth pattern is identified in the round‐shaped particles (such a dodecahedron is shown as a ball model (left) and a simulated microscope image (right)), which ma...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2006-03, Vol.2 (3), p.351-355
Main Authors: Montejano-Carrizales, Juan Martín, Rodríguez-López, José Luis, Pal, Umapada, Miki-Yoshida, Mario, José-Yacamán, Miguel
Format: Article
Language:English
Subjects:
atomic structure
Computer Simulation
Crystallization - methods
density functional theory
Macromolecular Substances - chemistry
Metals - chemistry
modeling
Models, Chemical
Models, Molecular
Molecular Conformation
nanoparticles
Nanostructures - chemistry
Nanostructures - ultrastructure
Nanotechnology - methods
Particle Size
template synthesis
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Summary:Binary AuPd nanoparticles in the 1–2 nm size range have been imaged by high‐resolution electron microscopy (HREM). A dodecahedral atomic growth pattern is identified in the round‐shaped particles (such a dodecahedron is shown as a ball model (left) and a simulated microscope image (right)), which make up 85 % of the total product. The results demonstrate the first experimental evidence of this Platonic form for metallic nanoparticles of this size. The stability of such structures has been validated through theoretical calculations.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.200500362