N2O Decomposition over Dehydroxylated HZSM-5 Zeolites

N₂O decomposition over dehydroxylated HZSM-5 zeolite resulting in chemisorption of O-atoms and formation of new Z–O^* sites has been observed; oxidation of H_2, CH_4, C₂H₆ and CO over these sites at room temperature has been studied using IR diffuse-reflectance spectroscopy.