Hydrothermal aging of Pt/Al2O3 monolith: Washcoat morphology degradation effects studied using ammonia and propylene oxidation

Emission control catalysts experience degradation under the severe operating conditions which can negatively impact the product distribution and conversion. Understanding and quantifying this impact is necessary to properly design the catalyst. This study elucidates the effect of hydrothermal aging on the performance of a Pt/γ-Al2O3 washcoated monolith used for oxidation of ammonia and of propylene, two reaction systems pertinent to the Ammonia...