P-W-BRC-31 The Origin of Phosphorus Induced Chemical Aging of Model Three-way Catalyst Pd/Al2O3 Studied by Operando XAS/IR/MS

Wednesday, June 5, 2013
Ballroom C (Galt House Hotel)
Santhosh Kumar Matam, Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland.
The chemical aging caused by phosphorous retards the efficiency of Pd redox cycle involved reactions and the stabilization of active reaction intermediates (namely isocyanate species) by interacting with Pd nanoparticles and support alumina. This in turn, as compared to thermal aging, diminishes the three-way catalytic efficiency.

Extended Abstracts: