info:eu-repo/semantics/article
Combustion of diesel soot in NO/O2 presence. Cesium nitrate and gold catalysts
Fecha
2011-01-29Registro en:
Ruiz, Maria Lucia; Lick, Ileana Daniela; Ponzi, Marta Isabel; Rodriguez Castellón, Enrique; Jimenez Lopez, Antonio; et al.; Combustion of diesel soot in NO/O2 presence. Cesium nitrate and gold catalysts; Elsevier Science; Applied Catalysis A: General; 392; 1-2; 29-1-2011; 45-56
0926-860X
Autor
Ruiz, Maria Lucia
Lick, Ileana Daniela
Ponzi, Marta Isabel
Rodriguez Castellón, Enrique
Jimenez Lopez, Antonio
Ponzi, Esther Natalia
Resumen
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.