Browse Publications Technical Papers 2005-01-1085
2005-04-11

The Pt-Ba Interaction in Lean NOx Trap Systems 2005-01-1085

In a previous systematic investigation on the adsorption of NOx/O2 over Pt/Al2O3, Ba/Al2O3 and Pt-Ba/Al2O3 samples, a novel pathway for NOx storage was proposed that implies the direct uptake of NO in the presence of oxygen in the form of nitrites at Ba sites nearby Pt. In order to better elucidate the role of the Pt-Ba interaction on NOx storage and reduction, in the present study the adsorption of NOx/O2 and their subsequent reduction was further investigated over Pt-Ba/Al2O3 samples having different Ba loadings; a physical mixture Pt/Al2O3+Ba/Al2O3 was also considered for comparison purposes. A kinetic literature model has been adapted to our catalytic system in order to simulate the transient NOx adsorption over a wide range of operating conditions.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

H2S Suppression During the Desulfation of a Lean NOx Trap with a Nickel-Containing Catalyst

2005-01-1116

View Details

TECHNICAL PAPER

The Application of a NOx Absorber Catalyst System on a Heavy-Duty Diesel Engine

2005-01-1084

View Details

TECHNICAL PAPER

Laboratory Study of Lean NOx Trap Desulfation Strategies

2005-01-1114

View Details

X