OC31 Deactivation Mechanisms of The Pt/Pd-based Diesel Oxidation Catalysts

Tuesday, June 7, 2011: 4:40 PM
Cartier Ballroom (Detroit Marriott Hotel at the Renaissance Center )
Michelle Schmid1, Chang H. Kim2, Steven J. Schmieg2, Se H. Oh2, Do Heui Kim3 and Charles H.F. Peden3, (1)Optimal CAE Inc., Plymouth, MI, (2)Chemical Sciences and Materials Systems Lab, General Motors Research and Development Center, Warren, MI, (3)Institute for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, WA
The deactivation mechanisms over the diesel oxidation catalyst in its real world application are determined by coupling its catalytic activities with surface characterization incluing X-ray diffraction, transmission electron microscopy, in-situ X-ray photoelectron spectroscopy.  The role of the various aging factors impacting long-term performance in mobile applications will be discussed.

Extended Abstracts: