Catalysis Letters, Vol.86, No.1-3, 39-42, 2003
Enhanced catalytic performance of Co/MFI by hydrothermal treatment
Hydrothermal treatment of Co/MFI catalysts at high temperature increases their performance for NOx reduction with methane. As this treatment also shifts the TPR peak of isolated Co ions upward by 20 degreesC, the results suggest that the hydrothermal treatment induces transport of Co2+ ions from alpha to beta positions.
Keywords:NOx reduction with methane;Co/MFI catalysts;positions of Co ions in zeolite cavities;ion mobility in zeolite channels