The DOI matches its Crossref record; 72 of the 72 references it cites were found in a registry or an index.
Determination of the Evolution of Heterogeneous Single Metal Atoms and Nanoclusters under Reaction Conditions: Which Are the Working Catalytic Sites?
Open accessAbstract
Abstract Identification of active sites in heterogeneous metal catalysts is critical for understanding the reaction mechanism at the molecular level and for designing more efficient catalysts. Because of their structural flexibility, subnanometric metal catalysts, including single atoms and clusters with a few atoms, can exhibit dynamic structural evolution when interacting with substrate molecules, making it difficult to determine the catalytically active sites. In this work, Pt catalysts containing selected types of Pt entities (from single atoms to clusters and nanoparticles) have been prepared, and their evolution has been followed, while they were reacting in a variety of heterogeneous catalytic reactions, including selective hydrogenation reactions, CO oxidation, dehydrogenation of propane, and photocatalytic H2 evolution reaction. By in situ X-ray absorption spectroscopy, in situ IR spectroscopy, and high-resolution electron microscopy techniques, we will show that some characterization techniques carried out in an inadequate way can introduce confusion on the interpretation of coordination environment of highly dispersed Pt species. Finally, the combination of catalytic reactivity and in situ characterization techniques shows that, depending on the catalyst–reactant interaction and metal–support interaction, singly dispersed metal atoms can rapidly evolve into metal clusters or nanoparticles, being the working active sites for those abovementioned heterogeneous reactions.
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Cites
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Self-citationHeterogeneous single-atom catalysis
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Liu, L., & Corma, A. (2023) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00733 · Cited by 689
Self-citationFunctional CeOx nanoglues for robust atomically dispersed catalysts
Li, X., Pereira-Hernández, X. I., Chen, Y., Xu, J., Zhao, J., Pao, C.-W., Fang, C.-Y., Zeng, J., Wang, Y., Gates, B. C., et al. (2022) · Nature · doi:10.1038/s41586-022-05251-6 · Cited by 543
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Mitchell, S., Qin, R., Zheng, N., & Pérez-Ramírez, J. (2021) · Nature Nanotechnology · doi:10.1038/s41565-020-00799-8 · Cited by 444
Enhanced Electrocatalytic Hydrogen Evolution Activity in Single-Atom Pt-Decorated VS2 Nanosheets
Zhu, J., Cai, L., Yin, X., Wang, Z., Zhang, L., Ma, H., Ke, Y., Du, Y., Xi, S., Wee, A. T. S., et al. (2020) · ACS Nano · doi:10.1021/acsnano.9b10048 · Cited by 206
Metadata
- Authors
- Liu, L., Meira, D. M., Arenal, R., Concepcion, P., Puga, A. V., & Corma, A.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-10-25
- Volume
- 9
- Issue
- 12
- Pages
- 10626-10639
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2981982197
- Cited by
- 294
- References
- 72
- FWCI
- 12.85
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Liu, L., Meira, D. M., Arenal, R., Concepcion, P., Puga, A. V., & Corma, A. (2019). Determination of the Evolution of Heterogeneous Single Metal Atoms and Nanoclusters under Reaction Conditions: Which Are the Working Catalytic Sites? ACS Catalysis. https://doi.org/10.1021/acscatal.9b04214
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