Cu/Al2O3 catalysts for soot oxidation: Copper loading effect

Abstract. Cu/Al2O3 catalysts with metal loading from 0.64 to 8.8 wt.% have been prepared and characterized by different techniques: N2 adsorption at 196 8C (BET surface area), ICP (Cu loading), XRD, selective copper surface oxidation with N2O (Cu dispersion), TPR-H2 (redox properties), and XPS (copper surface species). The catalytic activity for soot oxidation has been tested both in air a…