Catalytic performance of rhodium supported on ceria–zirconia mixed oxides f…

Abstract. The catalytic activity of Rh/CeO2–ZrO2 for NO reduction by C3H6 under stoichiometric conditions was found to depend strongly on the Ce/Zr composition. Rh/CeO2–ZrO2 with a Ce/Zr molar ratio of 50/50 (Rh/CZ-50/50) had the greatest activity; Ce/Zr = 74/26 (Rh/CZ-74/26), the least. The Rh/CZ-50/50 also showed specifically high intrinsic activity expressed in terms of turnover freq…