ACS Catalysis · 2018 · 286 citations · 40 references
Natural SciencesChemical EngineeringChemistryCatalysisSurface ChemistrySurface ScienceCatalyst CharacterizationCatalytic MaterialsCatalytic MechanismsMetal OxidesSurface CatalysisSurface OxidationCatalyst MechanismsCatalyst SurfacesCo OxidationCobalt Oxide CatalystsCobalt OxidesMetal Oxide CatalystsOxidationOxygen Vacancies
species at/near the surface remained low up to 200 °C. Only in pure CO, about 15% of surface reduction were detected, suggesting that the active sites are a minority species. The operando spectroscopic studies also revealed additional reaction pathways: CO dissociation followed by carbon reoxidation and carbonate formation and its decomposition. However, due to their thermal stability in various atmospheres, the carbonates are rather spectators and also CO dissociation seems a minor route. This study thus highlights the benefits of combining operando surface sensitive techniques to gain insight into catalytically active surfaces.
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Low-temperature oxidation of CO catalysed by Co3O4 nanorods
Xiaowei Xie, Yong Li, Zhi‐Quan Liu et al. · Nature · 2009 · 2.6K citations