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Letter

Self-Assembled Metallic Nanowires on a Dielectric Support: Pd on Rutile TiO₂(110)

Supporting Info

David S. Humphrey^†, Gregory Cabailh^†, Chi L. Pang^†, Chris A. Muryn^‡, Stuart A. Cavill^§, Helder Marchetto^§, Alessandro Potenza^§, Sarnjeet S. Dhesi^§ and Geoff Thornton*^†

London Centre for Nanotechnology and Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom, School of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom, Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom, and Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany

Nano Lett., 2009, 9 (1), pp 155–159

DOI: 10.1021/nl802703e

Publication Date (Web): December 29, 2008

†

University College London.

‡

University of Manchester.

Diamond Light Source Ltd.

Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany.

* To whom correspondence should be addressed. E-mail: g.thornton@ucl.ac.uk. Telephone: +44-(0)207-679-7979. Fax: +44-(0)207-679-0595.

Abstract

Palladium nanoparticles supported on rutile TiO₂(110)-1 × 1 have been studied using the complementary techniques of scanning tunneling microscopy and X-ray photoemission electron microscopy. Two distinct types of palladium nanoparticles are observed, namely long nanowires up to 1000 nm long, and smaller dotlike features with diameters ranging from 80−160 nm. X-ray photoemission electron microscopy reveals that the nanoparticles are composed of metallic palladium, separated by the bare TiO₂(110) surface.

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History

Published In Issue January 14, 2009
Article ASAPDecember 29, 2008
Received: September 05, 2008
Revised: November 25, 2008

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Letter

Self-Assembled Metallic Nanowires on a Dielectric Support: Pd on Rutile TiO₂(110)