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Creating single-atom Pt-ceria catalysts by surface step decoration
Open accessAbstract
Single-atom catalysts maximize the utilization of supported precious metals by exposing every single metal atom to reactants. To avoid sintering and deactivation at realistic reaction conditions, single metal atoms are stabilized by specific adsorption sites on catalyst substrates. Here we show by combining photoelectron spectroscopy, scanning tunnelling microscopy and density functional theory calculations that Pt single atoms on ceria are stabilized by the most ubiquitous defects on solid surfaces—monoatomic step edges. Pt segregation at steps leads to stable dispersions of single Pt 2+ ions in planar PtO 4 moieties incorporating excess O atoms and contributing to oxygen storage capacity of ceria. We experimentally control the step density on our samples, to maximize the coverage of monodispersed Pt 2+ and demonstrate that step engineering and step decoration represent effective strategies for understanding and design of new single-atom catalysts.
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Bruix, A., Rodriguez, J. A., Ramírez, P. J., Senanayake, S. D., Evans, J., Park, J. B., Stacchiola, D., Liu, P., Hrbek, J., & Illas, F. (2012) · Journal of the American Chemical Society · doi:10.1021/ja302070k · Cited by 839
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Liu, J. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b01534 · Cited by 1,331
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Gao, C., Low, J., Long, R., Kong, T., Zhu, J., & Xiong, Y. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00840 · Cited by 1,050
Anchoring zero valence single atoms of nickel and iron on graphdiyne for hydrogen evolution
Xue, Y., Huang, B., Yi, Y., Guo, Y., Zuo, Z., Li, Y., Jia, Z., Liu, H., & Li, Y. (2018) · Nature Communications · doi:10.1038/s41467-018-03896-4 · Cited by 1,011
Propane dehydrogenation: catalyst development, new chemistry, and emerging technologies
Chen, S., Chang, X., Sun, G., Zhang, T., Xu, Y., Wang, Y., Pei, C., & Gong, J. (2021) · Chemical Society Reviews · doi:10.1039/d0cs00814a · Cited by 895
Metadata
- Authors
- Dvořák, F., Farnesi Camellone, M., Tovt, A., Tran, N.-D., Negreiros, F. R., Vorokhta, M., Skála, T., Matolínová, I., Mysliveček, J., Matolín, V., & Fabris, S.
- Venue
- Nature Communications
- Published
- 2016-02-24
- Volume
- 7
- Issue
- 1
- Pages
- 10801-10801
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2409322059
- Cited by
- 495
- References
- 1
- FWCI
- 23.72
- Type
- journal article
- Language
- en
- Open access
- gold
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- Dvořák, F., Farnesi Camellone, M., Tovt, A., Tran, N.-D., Negreiros, F. R., Vorokhta, M., Skála, T., Matolínová, I., Mysliveček, J., Matolín, V., & Fabris, S. (2016). Creating single-atom Pt-ceria catalysts by surface step decoration. Nature Communications. https://doi.org/10.1038/ncomms10801
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