This contribution reports on a combined spectroscopic and catalytic study of the NO reactivity on cobalt-aluminophosphates with chabasite-related structure, CoAPO-18 and CoAPO-34. FTIR was used to monitor the surface species formed by NO adsorption on both oxidised and reduced catalysts, as well as the NO reactivity towards oxygen. CO molecular probe was also used to evaluate the degree of dispersion of cobalt ions within catalysts with different metal loading. Catalytic test of NO oxidation to NO2 were performed on properly designed fixed bed micro-reactors and apparatus where NO, NO2, N2O and O2 were continuously monitored. CoAPO-34 catalysts with 0.30 to 0.65 mmol Co/g showed exceptionally high performances which were much superior of the well known Cu-ZSM-5. © 2000 Elsevier Science B.V. All rights reserved.
Spectroscopic and catalytic investigation of the NO reactivity on CoAPOs with chabasite-like structure / L., Marchese; E., Gianotti; Palella, BORIS IGOR; R., Pirone; G., Martra; S. COLUCCIA AND P., Ciambelli. - STAMPA. - 130C:(2000), pp. 3005-3011. (Intervento presentato al convegno 12 International Congress on Catalysis tenutosi a Granada nel July 9th-14th).
Spectroscopic and catalytic investigation of the NO reactivity on CoAPOs with chabasite-like structure
PALELLA, BORIS IGOR;
2000
Abstract
This contribution reports on a combined spectroscopic and catalytic study of the NO reactivity on cobalt-aluminophosphates with chabasite-related structure, CoAPO-18 and CoAPO-34. FTIR was used to monitor the surface species formed by NO adsorption on both oxidised and reduced catalysts, as well as the NO reactivity towards oxygen. CO molecular probe was also used to evaluate the degree of dispersion of cobalt ions within catalysts with different metal loading. Catalytic test of NO oxidation to NO2 were performed on properly designed fixed bed micro-reactors and apparatus where NO, NO2, N2O and O2 were continuously monitored. CoAPO-34 catalysts with 0.30 to 0.65 mmol Co/g showed exceptionally high performances which were much superior of the well known Cu-ZSM-5. © 2000 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
