Catalysis Letters, Vol.147, No.11, 2886-2892, 2017
Understanding the Effect of NO Adsorption on Potassium-Promoted Co3O4 for N2O Decomposition
Co3O4 and K/Co3O4 were tested in catalytic N2O decomposition. K/Co3O4 exhibited higher activity than Co3O4, which was drastically and irrecoverably decreased with added NO. Studies revealed that the Co2+ valence state changed after NO adsorption, and that potassium strengthened the Co-NO bond, impeding NO desorption, even above 400 A degrees C.