Dynamic Oxygen Storage Capacity of Ceria-Zirconia and Mn_0.5Fe_2.5O₄ Spinel: Experiments and Modeling

A combined experimental and modeling study of dynamic oxygen storage capacity (DOSC) of ceria-zirconia (CZO) and Al2O3-supported Mn0.5Fe2.5O4 (MFO) spinel using CO and H2 as reductants is conducted to provide understanding of the redox performance of CZO and MFO under periodic reduction–oxidation cycling conditions. Particular attention is placed on fast cycling (cycle time of several seconds) encountered in emission control applications. Fixed...