Low Temperature Method for Measuring Oxygen Storage Capacity of Ceria-Containing Oxides
XII European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” (EuropaCat-XII)
30 Aug - 4 Sep 2015
||EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts
Boreskov Institute of Catalysis. Novosibirsk.2015.
2184 c. ISBN 9785906376107.
Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
Ecoalliance, Ltd., Novouralsk, Russia
Novosibirsk State University, Novosibirsk, Russia
A new method of investigation of oxygen storage capacity (OSC) of ceria-containing oxides in a wide range of temperature is considered. Usually, the approach is based on using CO oxidation with oxygen released from the lattice of ceria-containing oxides. However, the low activity of ceria in this reaction at low temperature limits the whole process of OSC measurement. Therefore, the new method suggests the addition to a ceria-containing oxide of a more active catalyst Pt/Al2O3 to facilitate the CO oxidation step. A correlation between OSC and effectiveness of TWC is also presented. The method allows studying the OSC at lower temperatures. The results are utterly essential for the understanding the behavior of TWC and thus for their development.