Issue 16, 2010
From the journal:

Physical Chemistry Chemical Physics

A novel stabilisation model for rutheniumnanoparticles in imidazolium ionic liquids: in situ spectroscopic and labelling evidence†

Paul S. Campbell,a   Catherine C. Santini,*a   Denis Bouchu,b   Bernard Fenet,c   Karine Philippot,d   Bruno Chaudret,d   Agílio A. H. Páduae  and  Yves Chauvina  

* Corresponding authors

a Université de Lyon, Institut de Chimie de Lyon, UMR 5265 CNRS-Université de Lyon-ESCPE Lyon, LC2P2, Equipe Chimie Organométallique de Surface, ESCPE 43 Boulevard du 11 Novembre 1918, F-69616 Villeurbanne, France
E-mail: santini@cpe.fr
Fax: 33(0)472431795
Tel: 33(0)472431794

b Centre Commun de Spectrométrie de Masse, UCB Lyon 1-ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, F-69616 Villeurbanne, France

c Centre Commun de RMN, UCB Lyon 1-ESCPE Lyon, 43 Boulevard du 11 Novembre 1918, F-69616 Villeurbanne, France

d Laboratoire de Chimie de Coordination, UMR CNRS, 205, route de Narbonne, F-31077-Toulouse cedex 04, France

e Laboratoire de Thermodynamique des Solutions et des Polymères, Université Blaise Pascal, Clermont-Ferrand, 24 av. des Landais, 63177 Aubière, France

Abstract

In situ labelling and spectroscopic experiments are used to explain the key points in the stabilisation of ruthenium nanoparticles (RuNPs) generated in imidazolium-based ionic liquids (ILs) by decomposition of (η4-1,5-cyclooctadiene)(η6-1,3,5-cyclooctatriene)ruthenium(0), Ru(COD)(COT), under dihydrogen. These are found to be: (1) the presence of hydrides at the RuNP surface and, (2) the confinement of RuNPs in the non-polar domains of the structured IL, induced by the rigid 3-D organisation. These results lead to a novel stabilisation model for NPs in ionic liquids.

Graphical abstract: A novel stabilisation model for ruthenium nanoparticles in imidazolium ionic liquids: in situ spectroscopic and labelling evidence

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Article information

DOI
https://doi.org/10.1039/B925329G
Article type
Paper
Submitted
01 Dec 2009
Accepted
08 Feb 2010
First published
10 Mar 2010

Phys. Chem. Chem. Phys., 2010,12, 4217-4223

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A novel stabilisation model for ruthenium nanoparticles in imidazolium ionic liquids: in situ spectroscopic and labelling evidence

P. S. Campbell, C. C. Santini, D. Bouchu, B. Fenet, K. Philippot, B. Chaudret, A. A. H. Pádua and Y. Chauvin, Phys. Chem. Chem. Phys., 2010, 12, 4217 DOI: 10.1039/B925329G

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