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- W2933127534 abstract "Pt/Eu 2 O 3 -CeO 2 materials with different Eu concentrations were prepared and applied to toluene destruction, and the remarkable promotion impact of EuO x on Pt/CeO 2 can be observed. The characterization results reveal that the presence of EuO x significantly enhances the redox property, lattice O concentration, and Ce 3+ ratio of the Pt/CeO 2 material, which facilitates the dispersion and activity of Pt active sites and thus accelerates the decomposition process of toluene. Among all catalysts, a sample with an Eu content of 2.5 at.% (Pt/EC-2.5) possesses the best catalytic activity with 0.09 vol% of toluene completely destructed at 200 °C under a relatively high GHSV of 50000 h −1 . The possible reaction pathway and mechanism of toluene combustion over Pt/Eu 2 O 3 -CeO 2 samples are presented according to in-situ DRIFTS, which confirms that the toluene oxidation process obeys the Mars-van Krevelen mechanism with aldehydes and ketones as primary organic intermediates. The presence of EuO x species greatly enhances the redox property, lattice O concentration, and Ce 3+ ratio of Pt/CeO 2 , and subsequently low-temperature toluene destruction is achieved." @default.
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- W2933127534 date "2019-04-01" @default.
- W2933127534 modified "2023-10-18" @default.
- W2933127534 title "Revealing the unexpected promotion effect of EuO on Pt/CeO2 catalysts for catalytic combustion of toluene" @default.
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- W2933127534 doi "https://doi.org/10.1016/s1872-2067(19)63292-4" @default.
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