Oxidation of CO by NO over Rh(111)

摘要: Abstract We have studied the oxidation of CO by NO aver a Rh(111) catalyst at pressures between 2 and 120 Torr, paying particular attention to nitrogen containing products. Reacting 8 Torr with 525 675 K, we detect three products, , N O, . All products are formed an apparent activation energy ( E ) near 33.5 kcal/mol. Within range temperatures examined. O is primary N-containing product-Rh(111) about 70% selective for O. The selectivity insensitive reaction temperature, reactant pressure, conversion. By varying pressure different temperatures, determined that production rates all zero order in both pressure. energies, orders, observe good agreement previously reported measurements over Rh(111). major new result our work finding not dominant nitrogen-containing product + below 650 K.