In situ spectroscopic detection of SMSI effect in a Ni/CeO2 system: hydrogen-induced burial and dig out of metallic nickel

Alfonso Caballero; Juan P. Holgado; Victor M. Gonzalez-delaCruz; Susan E. Habas; Tirma Herranz; Miquel Salmeron

doi:10.1039/B920803H

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In situ spectroscopic detection ofSMSI effect in a Ni/CeO₂ system: hydrogen-induced burial and dig out of metallic nickel

Alfonso Caballero,*^a Juan P. Holgado,^a Victor M. Gonzalez-delaCruz,^a Susan E. Habas,^b Tirma Herranz^b and Miquel Salmeron^b

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* Corresponding authors

^a Instituto de Ciencia de Materiales and Departamento Quimica Inorganica (CSIC-Universidad de Sevilla), Sevilla, Spain
E-mail: caballero@us.es
Fax: +34954460665
Tel: +34954489538

^b Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

Abstract

In situ APPES technique demonstrates that the strong metal support interaction effect (SMSI) in the Ni-ceria system is associated with the decoration and burial of metallic particles by the partially reduced support, a phenomenon reversible by evacuation at high temperature of the previously absorbed hydrogen.

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Article information

DOI: https://doi.org/10.1039/B920803H
Article type: Communication
Submitted: 07 Oct 2009
Accepted: 01 Dec 2009
First published: 23 Dec 2009

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Chem. Commun., 2010,46, 1097-1099

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In situ spectroscopic detection of SMSI effect in a Ni/CeO₂ system: hydrogen-induced burial and dig out of metallic nickel

A. Caballero, J. P. Holgado, V. M. Gonzalez-delaCruz, S. E. Habas, T. Herranz and M. Salmeron, Chem. Commun., 2010, 46, 1097 DOI: 10.1039/B920803H

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