CINDECA 05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
Ge-modified Pt/SiO2 catalysts used in preferential CO oxidation (CO-PROX)
Autor/es:
HERNÁN P. BIDEBERRIPE; JOSÉ M. RAMALLO-LÓPEZ; SANTIAGO J.A. FIGUEROA; MARÍA A. JAWORSKI; MÓNICA L. CASELLA; GUILLERMO J. SIRI
Revista:
CATALYSIS COMMUNICATIONS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2011 vol. 12 p. 1280 - 1285
ISSN:
1566-7367
Resumen:
A bimetallic PtGe catalyst was prepared by a controlled surface reaction and studied for the PROX reaction.The good activity of the bimetallic catalyst can be assigned to the presence of a ?noble metal-oxidized meta promoter ensemble site in close contact, the noble metal (Pt) being the CO adsorption site and the oxidized metal promoter (Ge) the O2 adsorption site. The stability of the PtGe clusters is confirmed by the EXAFS spectra and activity measurements in the preferential oxidation reaction that show similar values for samples subjected to different oxidation?reduction cycles.
