Aj. Hallock et al., N-2 product internal-state distributions for the steady-state reactions ofNO with H-2 and NH3 on the Pt(100) surface, J PHYS CH B, 105(37), 2001, pp. 8725-8728
The steady-state reaction of NO with H-2 and NH3 on Pt(100) is investigated
over a temperature range of 340-570 K, and the rotational and vibrational
states of the N-2 product are probed by resonance enhanced multiphoton ioni
zation. For NO + NH3 the N-2 reaction product leaves the surface rotational
ly and vibrationally excited, whereas for NO + H-2, the desorbing N-2 is ro
tationally equilibrated with the surface and no vibrational excitation can
be detected. We conclude that although these two surface reactions both yie
ld N-2, the actual reaction mechanisms must be different.