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Identification of the "Active Sites" of a Surface-Catalyzed Reaction
Abstract
The dissociation of nitric oxide on a ruthenium(0001) surface was studied by scanning tunneling microscopy. The distribution of nitrogen atoms after the dissociation allowed the identification of the "active sites" for this reaction, which are formed by the low-coordinated, top metal atoms of atomic steps. It is proposed that their activity is caused by local changes in the electronic structure. The structure of the steps determines whether they remain active or become deactivated by oxygen atoms. The results demonstrate the complex manner in which the structure of a catalytic surface determines the reactivity of the catalyst and confirm the active sites concept.
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Cited by
Identification of Active Edge Sites for Electrochemical H 2 Evolution from MoS 2 Nanocatalysts
Jaramillo, T. F., Jørgensen, K. P., Bonde, J., Nielsen, J. H., Horch, S., & Chorkendorff, I. (2007) · Science · doi:10.1126/science.1141483 · Cited by 6,100
Theoretical surface science and catalysis—calculations and concepts
Hammer, B., & Nørskov, J. K. (2000) · Advances in Catalysis · doi:10.1016/s0360-0564(02)45013-4 · Cited by 3,972
The nature of the active site in heterogeneous metal catalysis
Nørskov, J. K., Bligaard, T., Hvolbæk, B., Abild-Pedersen, F., Chorkendorff, I., & Christensen, C. H. (2008) · Chemical Society Reviews · doi:10.1039/b800260f · Cited by 885
Kibsgaard, J., Jaramillo, T. F., & Besenbacher, F. (2014) · Nature Chemistry · doi:10.1038/nchem.1853 · Cited by 839
Role of Steps inN2Activation on Ru(0001)
Dahl, S., Logadottir, A., Egeberg, R. C., Larsen, J. H., Chorkendorff, I., Törnqvist, E., & Nørskov, J. K. (1999) · Physical Review Letters · doi:10.1103/physrevlett.83.1814 · Cited by 788
Metadata
- Authors
- Zambelli, T., Wintterlin, J., Trost, J., & Ertl, G.
- Venue
- Science
- Published
- 1996-09-20
- Volume
- 273
- Issue
- 5282
- Pages
- 1688-1690
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2016440766
- Cited by
- 619
- References
- 0
- FWCI
- 9.80
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zambelli, T., Wintterlin, J., Trost, J., & Ertl, G. (1996). Identification of the "Active Sites" of a Surface-Catalyzed Reaction. Science. https://doi.org/10.1126/science.273.5282.1688
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
