Enhanced Reducibility of the Ceria-Tin Oxide Solid Solution Modifies the CO Oxidation Mechanism at the Platinum-Oxide Interface
The introduction of tin into ceria strongly influences its reducibility. In turn, the reaction mechanism towards the oxidation of carbon monoxide changes: the oxidation rate increases, the apparent activation energy decreases and the reaction order in oxygen increases.
Encapsulation of highly dispersed palladium oxide clusters in the microporous channels and voids of the nanosized silicalite-1 crystals has been achieved by using an amine-based ligand.
Platinum isolated atoms and clusters supported on molybdenum carbide have been extensively characterized. The presence of both species is essential to boost the stability, so that the catalysts displays high metal-normalized turnover number of 4,300,000 moles of hydrogen per mole of platinum
The strong metal support interaction has been investigated in situ by means of electron microscopy, XPS and XRD, to provide a complete overview about the interplay between the metal and the support.
Surface Segregation Acts as Surface Engineering for the Oxygen Evolution Reaction on Perovskite Oxides in Alkaline Media
The temperature-dependent segregation of strontium-containing species on LSCO electrodes has been studied by means of XPS, SEM and XRD. Such surface species dissolve almost quantitatively upon immersion in water, leaving cobalt oxide, the active site of the reaction, free.
The mechanism of methane oxidation in the presence of water has been investigated in situ by means of APXPS.