CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
Cobalt and KNO3 supported on alumina catalysts for Diesel soot combustion.,
Autor/es:
CLAUDIA GRZONA; ILEANA DANIELA LICK; ENRIQUE RODRIGUEZ CASTELLĂ“N; MARTA ISABEL PONZI; ESTHER NATALIA PONZI
Revista:
MATERIALS CHEMISTRY AND PHYSICS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdan; Año: 2010 vol. 123 p. 557 - 557
ISSN:
0254-0584
Resumen:
The catalytic combustion of diesel soot was studied in the presence of fresh and aged catalysts: Co/Al2O3, KNO3/Al2O3 and Co/KNO3/Al2O3. The catalysts were prepared by impregnation using nitrate solutions.  The catalysts were characterized by X-ray diffraction, thermal programmed reduction, vibrational spectroscopy and X-ray photoelectron spectroscopy. Fresh and aged catalysts present high activity in presence of O2 andO2/NO. The values of the combustion temperature decrease more than 200 ◦C with respect to that observed in the process without catalysis. The activity is associated with the presence of KNO3 and the role of this salt can be attributed to the contribution of NO3−/NO2− redox cycle.
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