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Growth and Supra-Organization of Transition and Noble Metal Nanoclusters

Objective

A combined experimental and theoretical effort is undertaken to clarify (1) the mechanisms of nucleation and growth of bare and coated transition and noble metal nanoclusters, (2) the supra-organization of these nanoparticles in 1D, 2D and 3D super-structures, (3) the structure-properties relationships, with a full exploitation of the peculiar properties of these systems as the ultimate goal. Bare metal nanoparticles are grown by direct in situ vapor deposition on oxide surfaces in UHV conditions. Coated metal nanoparticles are obtained by synthesis in homogeneous phase either using reverse micelles as nanoreactors or from the aggregation of solvated metal atoms, and subsequently deposited on the substrates. Oxide substrates are nanopatterned with the aim of achieving the full control of the supra-organisation of the nanoclusters in different kinds of super-lattices. Information on the basic metal-support, metal-ligand and nanoparticle-nanoparticle interactions is derived from the interplay of calibrated experiments and first-principle calculations, and is used to build up appropriate interparticle potentials. These potentials are utilized in molecular dynamics and kinetic Monte Carlo simulations of the various growth processes under realistic conditions, from which a direct comparison with actual growth experiments is immediately possible. Once the structural properties are elucidated, general features of the structure-property relationships will be investigated. The aim is to achieve control over the size, size distribution, morphology and properties of nanoparticles and super-lattices.

Call for proposal

FP6-2002-NMP-1
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Funding Scheme

STREP - Specific Targeted Research Project
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Coordinator

CONSIGLIO NAZIONALE DELLE RICERCHE
Address
Piazzale Aldo Moro, 7
Roma
Italy

Participants (9)

ISTITUTO NAZIONALE PER LA FISICA DELLA MATERIA
Italy
Address
Corso Perrone, 24
Genova
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
France
Address
3, Rue Michel Ange
Paris
CONSIGLIO NAZIONALE DELLE RICERCHE (CNR)
Italy
Address
Piazzale Aldo Moro, 7
Roma
COMMISSARIAT À L'ENERGIE ATOMIQUE
France
Address
31-33, Rue De La Fédération
Paris
MAX-PLANCK-GESELLSHAFT ZUR FÖRDERUNG DER WISSENSHAFTEN
Germany
Address
Hofgartenstrasse 8
Munich
TECHNISCHE UNIVERSITÄT MÜNCHEN
Germany
Address
Arcisstrasse 21
München
UNIVERSITÄT GRAZ
Austria
Address
Universitätsplatz 3
Graz
UNIVERSITÄT ULM
Germany
Address
Grüner Hof 5C
Ulm
UNIVERSITÉ PIERRE ET MARIE CURIE
France
Address
4, Place Jussieu
Paris