Catalysis Letters, Vol.83, No.3-4, 215-220, 2002
Decomposition of nitrous oxide over Fe-ferrierites. Effect of deposited oxygen on the framework oxygens studied by O-18 isotopic exchange
About 50-75% of oxygen captured during decomposition of N2O at 200 degreesC over Fe-FER (Fe/Al 0.03-0.6) was exchanged by O-18 at room temperature. Complete desorption of captured oxygen containing mostly O-16 isotope was reached at higher temperature. The O-18 deficiency was rationalized by assuming labilization of the framework oxygen in Fe-FER.