Product desorption dynamics in explosive NO + CO reaction on Pt(1 0 0)

The angular and velocity distributions of desorbing products N2 and CO2 were studied in an explosive NO(a) + CO(a) reaction on Pt(1 0 0) by means of angle-resolved thermal desorption combined with cross-correlation time-of-flight techniques. The desorption peak of CO2 and N2 appeared in a narrow temperature range at 360–400 K. Desorption of both products sharply collimated along the surface normal. The velocity distribution of desorbing N2 showed three components with the translational temperatures of about 3500, 2000, and 600–800 K, whereas that of CO2 yielded only a single component of 1200 K.