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Water-Mediated Mars–Van Krevelen Mechanism for CO Oxidation on Ceria-Supported Single-Atom Pt1 Catalyst
Abstract
In water-promoted CO oxidation, water was thought not to directly participate in CO 2 production. Here we report that via a water-mediated Mars–van Krevelen (MvK) mechanism, water can directly contribute to about 50% of CO 2 production on a single-atom Pt 1 /CeO 2 catalyst. The origin is the facile reaction of CO with the hydroxyl from dissociated water to yield the carboxyl intermediate, which dehydrogenates subsequently with the help of a lattice hydroxyl to generate CO 2 and water. The water-mediated MvK type reaction found here provides new insights in the promotion role of water in heterogeneous catalysis.
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Cites
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Self-citationStrong Metal–Support Interactions between Pt Single Atoms and TiO2
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Metadata
- Authors
- Wang, C., Gu, X.-K., Yan, H., Lin, Y., Li, J., Liu, D., Li, W.-X., & Lu, J.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-12-28
- Volume
- 7
- Issue
- 1
- Pages
- 887-891
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2567452826
- Cited by
- 557
- References
- 2
- FWCI
- 14.12
- Type
- journal article
- Language
- en
- Open access
- closed
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