Fig. 4: Comparison of reaction kinetics, surface valance states, and chemical properties of model and powder ceria catalysts.
From: Dynamic control and quantification of active sites on ceria for CO activation and hydrogenation
The Arrhenius plots of reaction rates for CO hydrogenation to CO2 were displayed for (a) the ns-CeOx surface and (b) the r-CeOx surface. XPS Ce 3 d spectra of planar CeO2(111), the ns-CeOx surface, the r-CeOx surface, and CeO2-573 catalysts were compared (c) before and (d) after the CO hydrogenation reaction. e XPS C 1 s spectra of the ns-CeOx surface, the r-CeOx surface, and planar CeO2(111) after the CO hydrogenation reaction.
