1 February 1980 Laser Applications To Heterogeneous Catalysis: Reactant Excitation And Product Diagnostics
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Abstract
Irradiation of gaseous NO2 with the 488 nm line of an argon ion laser during its reaction with C2H4 over a Pt catalyst at 250 C resulted in up to a fourfold increase in the CO2 product yield. This enhancement is believed to result from the reaction of vibrationally excited NO2 with adsorbed C2H4 or a species derived from it. The observed effect disappeared after a period of time due to surface poisoning. Hydroxyl radicals have been detected leaving the surface of Pt and Rh-Pt catalysts during the reaction of H2 and 02 at 600-800 C. The OH radical was detected by its fluorescence at 340 nm induced by a dye laser, both in the gas phase and in an Ar matrix at 10 K. The activation energies for OH production from Pt and Rh-Pt surfaces have been determined.
M. E. Umstead, L. D. Talley, D. E. Tevault, M. C. Lin, "Laser Applications To Heterogeneous Catalysis: Reactant Excitation And Product Diagnostics," Optical Engineering 19(1), 191094 (1 February 1980). https://doi.org/10.1117/12.7972473 . Submission:
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