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- W4381327504 abstract "Metal–oxide interfaces on Cu-based catalysts play very important roles in the low-temperature water–gas shift reaction (LT-WGSR). However, developing catalysts with abundant, active, and robust Cu-metal oxide interfaces under LT-WGSR conditions remains challenging. Herein, we report the successful development of an inverse copper–ceria catalyst (Cu@CeO2), which exhibited very high efficiency for the LT-WGSR. At a reaction temperature of 250 °C, the LT-WGSR activity of the Cu@CeO2 catalyst was about three times higher than that of a pristine Cu catalyst without CeO2. Comprehensive quasi-in situ structural characterizations indicated that the Cu@CeO2 catalyst was rich in CeO2/Cu2O/Cu tandem interfaces. Reaction kinetics studies and density functional theory (DFT) calculations revealed that the Cu+/Cu0 interfaces were the active sites for the LT-WGSR, while adjacent CeO2 nanoparticles play a key role in activating H2O and stabilizing the Cu+/Cu0 interfaces. Our study highlights the role of the CeO2/Cu2O/Cu tandem interface in regulating catalyst activity and stability, thus contributing to the development of improved Cu-based catalysts for the LT-WGSR." @default.
- W4381327504 created "2023-06-21" @default.
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- W4381327504 date "2023-06-20" @default.
- W4381327504 modified "2023-10-17" @default.
- W4381327504 title "CeO<sub>2</sub>/Cu<sub>2</sub>O/Cu Tandem Interfaces for Efficient Water–Gas Shift Reaction Catalysis" @default.
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- W4381327504 doi "https://doi.org/10.1021/acsami.3c06386" @default.
- W4381327504 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37339248" @default.
- W4381327504 hasPublicationYear "2023" @default.
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