The use of well-defined metal nanoparticles for catalysis is an exciting and rapidly growing area. Nanocatalysts have yet been reported as efficient and selective catalysts,¹ the most known ones being Pt(Pd)/cinchonidine ones for ethyl pyruvate hydrogenation.² However, other systems are now emerging.

In our group, the synthesis of metal nanoparticles is performed through an organometallic approach, giving rise to well-dispersed and small nanoparticles with a narrow size distribution.³ In addition they display a controlled surface composition that can be tuned by addition of ligands. This confers them surface coordination chemistry properties⁴ that can lead to applications in the field of catalysis. Depending on their nature, the ligands may have a high influence on nanoparticles catalytic properties and can induce particular properties.

The synthesis and the characterization of organic ligand stabilized metal nanoparticles will be described as well as interesting catalytic properties in aromatic compounds hydrogenation⁵ or enantioselective allylic alkylation.⁶

References

1. Nanoparticles and Catalysis, Wiley-VCH, Weinheim, (Ed D. Astruc), 2008.
2. M. Studer, H.-U.Blaser, C. Exner, Adv. Synth. Catal. 2003, 345, 45.
3. Organometallic Derived –I: Metals, Colloids, and Nanoparticles, K. Philippot and B. Chaudret, in Comprehensive Organometallic Chemistry III, R.H. Crabtree & M.P. Mingos, (Eds-in-Chief), Elsevier, Vol. 12, Dermot O'Hare (Volume Ed.), 2007, Chapter 12-03, 71.
4. J. García-Antón, M. Rosa Axet, S. Jansat, K. Philippot, B. Chaudret, T. Pery, G. Buntkowsky, H.-H. Limbach, Angew. Chem. Int. Ed., 2008, 47, pp 2074-2078
5. A. Gual, M. Rosa Axet, K. Philippot, B. Chaudret, A. Denicourt-Nowicki, A. Roucoux, S. Castillón and C. Claver, Chem. Commun, 2008, in press (DOI : 10.1039/B802316F4)
6. I. Favier, M. Gómez, G. Muller, R. Axet, S. Castillón, C. Claver, S. Jansat, B. Chaudret, K. Philippot, Adv.Synth.Catal., 2007, 349, 2459.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/15391 must be provided.

1. Synthesis of hybrid nanomaterials RuO₂@SiO₂