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Contributions of distinct gold species to catalytic reactivity for carbon monoxide oxidation
Open accessAbstract
Small-size (<5 nm) gold nanostructures supported on reducible metal oxides have been widely investigated because of the unique catalytic properties they exhibit in diverse redox reactions. However, arguments about the nature of the gold active site have continued for two decades, due to the lack of comparable catalyst systems with specific gold species, as well as the scarcity of direct experimental evidence for the reaction mechanism under realistic working conditions. Here we report the determination of the contribution of single atoms, clusters and particles to the oxidation of carbon monoxide at room temperature, by the aid of in situ X-ray absorption fine structure analysis and in situ diffuse reflectance infrared Fourier transform spectroscopy. We find that the metallic gold component in clusters or particles plays a much more critical role as the active site than the cationic single-atom gold species for the room-temperature carbon monoxide oxidation reaction.
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Citations
Cites
Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation
Herzing, A. A., Kiely, C. J., Carley, A. F., Landon, P., & Hutchings, G. J. (2008) · Science · doi:10.1126/science.1159639 · Cited by 1,530
Cited by
Synthetic strategies of supported atomic clusters for heterogeneous catalysis
Rong, H., Ji, S., Zhang, J., Wang, D., & Li, Y. (2020) · Nature Communications · doi:10.1038/s41467-020-19571-6 · Cited by 367
The Multifaceted Reactivity of Single‐Atom Heterogeneous Catalysts
Mitchell, S., Vorobyeva, E., & Pérez‐Ramírez, J. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201806936 · Cited by 348
Metadata
- Authors
- Guo, L.-W., Du, P.-P., Fu, X.-P., Ma, C., Zeng, J., Si, R., Huang, Y.-Y., Jia, C.-J., Zhang, Y.-W., & Yan, C.-H.
- Venue
- Nature Communications
- Published
- 2016-11-16
- Volume
- 7
- Issue
- 1
- Pages
- 13481-13481
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2554715677
- Cited by
- 204
- References
- 1
- FWCI
- 9.46
- Type
- journal article
- Language
- en
- Open access
- gold
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