The effect of gas composition during thermal aging on the dispersion and NO oxidation activity over Pt/Al2O3 catalyst
Conference poster, 2012

The effect of aging atmosphere (Ar, H2, O2, SO2, SO2+O2) during thermal aging of Pt/Al2O3 model diesel oxidation catalysts was studied. More specifically, the impact of the aging on the NO oxidation activity and platinum dispersion was investigated. Thermal aging caused a decrease in dispersion and an increase in NO oxidation performance. However, the aging behavior was strongly correlated with the nature of the ageing atmosphere. Catalysts with similar dispersion could have very different NO oxidation activity, depending on which atmosphere that they were aged with.

Author

Xavier Auvray

Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering

Competence Centre for Catalysis (KCK)

Louise Olsson

Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering

Competence Centre for Catalysis (KCK)

CapoC 9, August 2012, Brussels, Belgium

Areas of Advance

Transport

Subject Categories

Chemical Process Engineering

Chemical Engineering

More information

Created

10/8/2017