INTEC   05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Fully Reversible Metal Deactivation Effects in Gold/Ceria–Zirconia Catalysts: Role of the Redox State of the Support
Autor/es:
JOSE M. CIES, ELOY DEL RIO, MIGUEL LOPEZ-HARO, JUAN J. DELGADO, GINESA BLANCO, SEBASTIAN COLLINS, JOSE J. CALVINO, AND SERAFIN BERNAL
Revista:
Angewandte Chemie
Editorial:
WILEY-V C H VERLAG GMBH
Referencias:
Año: 2010 vol. 49 p. 9744 - 9748
ISSN:
1433-7851
Resumen:
Strong and reversible modification of the chemical properties of supported Au nanoparticles caused by alternating oxidizing (a and c) and reducing (b) pretreatment of Au/CeO2–ZrO2 catalysts were revealed by a methodology that combines FTIR spectroscopy (see picture), studies on the volumetric adsorption of CO and ultimate oxygen storage capacity, determination of metal dispersion by electron microscopy, and X-ray photoelectron spectroscopy.