CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
Combustion of diesel soot in NO/O2 presence. Cesium nitrate and gold catalysts
MARÍA LUCÍA RUIZ; ILEANA DANIELA LICK; MARTA ISABEL PONZI; ENRIQUE RODRIGUEZ CASTELLÓN; ANTONIO JIMENEZ LOPEZ; ESTHER NATALIA PONZI
APPLIED CATALYSIS A-GENERAL
ELSEVIER SCIENCE BV
Lugar: New York; Año: 2010
The diesel soot combustion was studied using catalysts prepared by impregnation with cesium nitrate and/or gold on zirconium oxide (ZrO2), hydrated zirconium oxide and silica (SiO2). Catalysts were characterized by colorimetry, elemental analysis, atomic absorption spectrophotometry, XRD, FTIR, TPR and XPS. Measurements of catalytic activity were performed in a thermobalance with air and in a fixed bed reactor with a NO/O2 feed. All catalysts containing cesium nitrate exhibit a good activity for soot oxidation and the addition of gold substantially increases the CO2 generation leading the selectivity to 100% in CO2.2