Core–shell Au@(TiO2, SiO2) nanoparticles with tunable morphology

D. Djoumessi Lekeufack; A. Brioude; A. Mouti; J. G. Alauzun; P. Stadelmann; A. W. Coleman; P. Miele

doi:10.1039/C0CC00935K

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Core–shell Au@(TiO₂, SiO₂) nanoparticles with tunable morphology†

D. Djoumessi Lekeufack,^a A. Brioude,*^a A. Mouti,^b J. G. Alauzun,^a P. Stadelmann,^b A. W. Coleman^a and P. Miele^a

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* Corresponding authors

^a Laboratoire des Multimatériaux et Interfaces (UMR CNRS 5615), Université Lyon 1, Université de Lyon, 43 Bd du 11 Novembre 1918, Villeurbanne Cedex, France
E-mail: Arnaud.brioude@univ-lyon1.fr
Fax: +33 04 72 44 06 18

^b EPFL-SB-CIME, Bâtiment MXC 136, Station 12, CH-1015 Lausanne, Switzerland

Abstract

A novel approach based on the Stöber method allows breaking of the symmetry of core–shell systems based on metallic core and metal oxide shell. By adjusting the proportion of the TiO₂ precursor with regard to the silica precursor, different morphologies of the particles have been obtained displacing the gold particle from center to eccentric positions leading to acorn-like and raspberry-like structure.

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Supplementary files

Synthesis of the CS nanoparticles PDF (512K)

Article information

DOI: https://doi.org/10.1039/C0CC00935K
Article type: Communication
Submitted: 14 Apr 2010
Accepted: 05 May 2010
First published: 19 May 2010

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Chem. Commun., 2010,46, 4544-4546

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Core–shell Au@(TiO₂, SiO₂) nanoparticles with tunable morphology

D. D. Lekeufack, A. Brioude, A. Mouti, J. G. Alauzun, P. Stadelmann, A. W. Coleman and P. Miele, Chem. Commun., 2010, 46, 4544 DOI: 10.1039/C0CC00935K

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