Size-Selected Monodisperse Nanoclusters on Supported Graphene: Bonding, Isomerism, and Mobility

Soft-landing of size-selected Pd n (n ≤ 20) nanoclusters on a Moiré-patterned surface of graphene adsorbed on Ru(0001) leads to controlled formation of a truly monodisperse cluster-assembled material. Combined scanning tunneling microscopy and first-principles calculations allow identification of s...

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Veröffentlicht in:	Nano letters 2012-11, Vol.12 (11), p.5907-5912
Hauptverfasser:	Wang, Bo, Yoon, Bokwon, König, Michael, Fukamori, Yves, Esch, Friedrich, Heiz, Ueli, Landman, Uzi
Format:	Artikel
Sprache:	eng
Schlagworte:	Bonding Clusters Condensed matter: electronic structure, electrical, magnetic, and optical properties Control surfaces Electron states Exact sciences and technology Graphene Isomers Methods of electronic structure calculations Nanostructure Physical factors Physics Superstructures Surface chemistry
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creator	Wang, Bo Yoon, Bokwon König, Michael Fukamori, Yves Esch, Friedrich Heiz, Ueli Landman, Uzi
description	Soft-landing of size-selected Pd n (n ≤ 20) nanoclusters on a Moiré-patterned surface of graphene adsorbed on Ru(0001) leads to controlled formation of a truly monodisperse cluster-assembled material. Combined scanning tunneling microscopy and first-principles calculations allow identification of selective adsorption sites, characterization of size-dependent cluster isomers, and exploration of interconversion processes between isomeric forms that manifestly influence cluster surface mobility. Surface-assembled cluster superstructures may be employed in nanocatalytic applications, as well as in fundamental investigations of physical factors controlling bonding, structure, isomerism, and surface mobilities of surface-supported clusters.
doi_str_mv	10.1021/nl303319f
format	Article
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subjects	Bonding Clusters Condensed matter: electronic structure, electrical, magnetic, and optical properties Control surfaces Electron states Exact sciences and technology Graphene Isomers Methods of electronic structure calculations Nanostructure Physical factors Physics Superstructures Surface chemistry
title	Size-Selected Monodisperse Nanoclusters on Supported Graphene: Bonding, Isomerism, and Mobility
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