This work was supported by MIUR under PRIN projects and by Regione FVG. J.L. acknowledges MEC grant ENE2006-06925. S.F. thanks “Iniziativa calcolo per la Fisica della Materia 2008” for computational resources. We thank Treibacher AG (Austria) and Grace Davison (USA) for providing samples of commercial ceria.
Communication
Nanofaceted Pd
O Sites in Pd
Ce Surface Superstructures: Enhanced Activity in Catalytic Combustion of Methane†
Article first published online: 2 OCT 2009
DOI: 10.1002/anie.200903581
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Colussi, S., Gayen, A., Farnesi Camellone, M., Boaro, M., Llorca, J., Fabris, S. and Trovarelli, A. (2009), Nanofaceted Pd
O Sites in Pd
Ce Surface Superstructures: Enhanced Activity in Catalytic Combustion of Methane. Angew. Chem. Int. Ed., 48: 8481–8484. doi: 10.1002/anie.200903581
- †
Publication History
- Issue published online: 20 OCT 2009
- Article first published online: 2 OCT 2009
- Manuscript Revised: 28 AUG 2009
- Manuscript Received: 1 JUL 2009
Funded by
- MIUR
- MEC. Grant Number: ENE2006-06925
Keywords:
- ceria;
- density functional calculations;
- heterogeneous catalysis;
- nanostructures;
- palladium

An open superstructure: A Pd/CeO2 catalyst prepared by solution combustion synthesis is three to five times more active for CH4 combustion than the best conventional palladium-based systems. The catalyst contains an ordered, stable Pd-O-Ce surface superstructure (see picture; cyan arrow is a square-planar Pd site, red arrow is an undercoordinated O atom) and is an example of ultra-highly dispersed, stable Pd
O within an oxide carrier.

1521-3773/asset/2002_left.gif?v=1&s=ac6b0d94a94d7ce7a210002b8096b42feffc0bcf)
1521-3773/asset/2002_right.gif?v=1&s=451042aa3415ae3ad0729984d26dee1866aca82e)
1521-3773/asset/cover.gif?v=1&s=412bc65bdcb3f0e34a94f27c1c13e908726694d4)