Superior TWC activity of Rh supported on pyrochlore-phase ceria zirconia

[Display omitted] •Pyrochlore-phase CZO formed by reducing tetragonal-phase CZO at 1200 °C provides best OSC characteristics.•Rhodium supported on pyr-CZO-1200 °C has improved NOx and C3H8 light-off and crossover performance.•OSC is higher for pyr-CZO-1200 °C than pyrochlore obtained at 1500 °C, due...

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Veröffentlicht in:	Applied catalysis. B, Environmental Environmental, 2021-01, Vol.280, p.119450, Article 119450
Hauptverfasser:	Wu, Jason, O’Neill, Ann E., Li, Cheng-Han, Jinschek, Joerg R., Cavataio, Giovanni
Format:	Artikel
Sprache:	eng
Schlagworte:	Aging Alkanes Catalysts Ceria zirconia Cerium oxides Emission standards Mass transfer NOx Control Oxygen Pyrochlore Rhodium Storage capacity Three-way catalysts Zirconia Zirconium dioxide
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