SSRN
The temporal evolution of the reduction of NO by CO over Pt/Al2O3 as a layered and powdered catalyst in flow reactors is investigated as a function of temperature and stoichiometry and at low concentrations typical for emission control. The focus is mainly on the early decline in conversion over freshly reduced or regenerated catalysts as well as on the reaction of NO with isocyanate previously adsorbed on the surface. Results suggest presented suggest that isocyanate formation promotes dissociation of adsorbed NO, thus temporarily counteracting the well-known inhibiting effect of CO adsorption.
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Thomas Häber, Samuel Struzek, Sui Wan, Joachim Czechowsky, Camilo Cárdenas, Florian Maurer, Patrick Lott, Rainer Suntz, Jan-Dierk Grunwaldt & Olaf Deutschmann
Karlsruhe Institute of Technology
DOI: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4698355
