Catalytic Materials for Gasoline Particulate Filters Soot Oxidation

The energy efficiency of Gasoline Direct Injection (GDI) engines is leading to a continuous increase in GDI engine vehicle population. Consequently, their particulate matter (soot) emissions are also becoming concern. As required for diesel engines, meet the limits set by regulations, catalyzed filters considered as an effective solution through which soot could be trapped and burnt out. However, contrast application, regeneration gasoline (GPF) critical, it occurs with almost absence NOx under oxygen deficiency. Therefore, recent years was scientific interest develop efficient oxidation catalysts that fit such particular operating conditions. Among them ceria- perovskite-based formulations emerging most promising materials. This overview summarizes very academic contributions focusing on materials GDI, order point out directions this research area.