Development of Detailed Surface Reaction Mechanism of CO/ NO/ O2 System for Three Way Catalyst Based on Gaseous and Surface Species Analyses

Abstract

<div class="section abstract"><div class="htmlview paragraph">In this study, we determined the detailed reaction mechanism of CO/NO/O2 for automotive three way catalysts. The N2O formation process obtained from measurements of the reaction properties and the formation process of adsorbed NCO species obtained from surface analysis of platinum group metals were added to a previous detailed surface reaction mechanism. The computational accuracy of the developed reaction mechanism was verified by the one-dimensional simulation software BOOST, and it was found to be sufficient for any combination of platinum group metals and gas concentrations.</div></div>