Structure-activity relationship in Pd/CeO2 methane oxidation catalysts

Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Sara Colussi, Paolo Fornasiero, Alessandro TrovarelliAbstractPalladium based catalysts are the most active for methane oxidation. The tuning of their composition, structure and morphology at macro and nanoscale can alter significantly their catalytic behavior and robustness with a strong impact on their overall performances. Among the several combinations of supports and promoters that have been utilized, Pd/CeO2 has attracted a great attention due to its activity and durability coupled with the unusually high degree of interaction between Pd/PdO and the support. This allows the creation of specific structural arrangements which profoundly impact on methane activation characteristics. Here we want to review the latest findings in this area, and particularly to envisage how the control (when possible) of Pd-CeO2 interaction at nanoscale can help in designing more robust methane oxidation catalysts.Graphical AbstractPd/CeO2 methane oxidation catalysts show good performances, associated with the unusually high degree of interaction between the two components. This review summarizes some recent advances in this area, with a focus on Pd-ceria interaction at nanoscale.
Source: Chinese Journal of Catalysis - Category: Chemistry Source Type: research