... Catal. B Environmental 2: 147–1 52, 1993. 20 . K. K. Hansen, E. M. Skou, H. Christensen, T. Turek. J. Catal. 199:1 32 140, 20 01. 21 . D. K. Captain, M. D. Amiridis. J. Catal. 194 :22 2 23 2, 20 00. 22 . K ... andC3H7–NO 2 at 1444 cmϪ1as well as increases in MS intensities of N 2 ,CO 2 ,H 2 O,and N 2 O, indicating reduction of NO/O 2 by C3H6. Reduction of NO by C3H6alsocaused the increase in the ... 1cm3C3H6pulse into the NO/O 2 flow at 623 K. Flowing NO/O 2 /He over Cu-ZSM-5 produced bridged Cu 2 (NO3Ϫ). This species has also been observed during theNO decomposition reaction over Cu-ZSM-5 [26 28 ]....