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- W2014693722 abstract "Pt supported on CeO2 (Pt/CeO2) is known to be a good catalyst for the water-gas shift (WGS) reaction. However, Pt catalyzes the methanation reaction as a side reaction, which limits the usefulness of Pt/CeO2 as a catalyst in the high-temperature (HT) WGS reaction. In this study, Pt nanoparticles (Pt NPs) were encapsulated in CeO2 over-layers (‘Pt in CeO2’) by using controlled reductive treatments to suppress the methanation reaction on Pt NPs. ‘Pt in CeO2’ catalyst demonstrated the much lower CH4 selectivity while showing the same high activity in the HT-WGS reaction compared to the conventional ‘Pt on CeO2’ catalyst. Detailed characterizations revealed that the underlying Pt NPs promoted the WGS reaction on thin (<1 nm) CeO2 over-layers by facilitating the formation of active oxygen vacancies. The present contribution to catalyst modification via simple thermal treatments will provide additional way to control metal-support interactions to improve catalytic performance." @default.
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- W2014693722 date "1985-11-01" @default.
- W2014693722 modified "2023-10-16" @default.
- W2014693722 title "Methanation and water-gas shift reactions over Pt/CeO2" @default.
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- W2014693722 doi "https://doi.org/10.1016/0021-9517(85)90381-1" @default.
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