Oxidation of nitric oxide to nitrogen dioxide over Ru catalysts

Abstract. A series of TiO2 supported catalysts were prepared by impregnation method in a rotary evaporator and evaluated for the oxidation of NO to NO2. Among all catalysts studied, Ru/TiO2 catalyst exhibited the best activity and a maximal NO conversion of c.a. 94% could be achieved at c.a. 275 oC at a high GHSV of 180,000 h-1. For ruthenium catalysts, the effects of supports, ruthenium l…