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Atomic-Scale Structure and Catalytic Reactivity of the RuO2(110) Surface
Abstract
The structure of RuO 2(110) and the mechanism for catalytic carbon monoxide oxidation on this surface were studied by low-energy electron diffraction, scanning tunneling microscopy, and density-functional calculations. The RuO 2(110) surface exposes bridging oxygen atoms and ruthenium atoms not capped by oxygen. The latter act as coordinatively unsaturated sites—a hypothesis introduced long ago to account for the catalytic activity of oxide surfaces—onto which carbon monoxide can chemisorb and from where it can react with neighboring lattice-oxygen to carbon dioxide. Under steady-state conditions, the consumed lattice-oxygen is continuously restored by oxygen uptake from the gas phase. The results provide atomic-scale verification of a general mechanism originally proposed by Mars and van Krevelen in 1954 and are likely to be of general relevance for the mechanism of catalytic reactions at oxide surfaces.
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Cited by
The surface science of titanium dioxide
Diebold, U. (2003) · Surface Science Reports · doi:10.1016/s0167-5729(02)00100-0 · Cited by 7,944
Composition, structure, and stability ofRuO2(110)as a function of oxygen pressure
Reuter, K., & Scheffler, M. (2001) · Physical Review B · doi:10.1103/physrevb.65.035406 · Cited by 2,109
Recent Advances and Prospective in Ruthenium-Based Materials for Electrochemical Water Splitting
Yu, J., He, Q., Yang, G., Zhou, W., Shao, Z., & Ni, M. (2019) · ACS Catalysis · doi:10.1021/acscatal.9b02457 · Cited by 789
Oxygen vacancies in metal oxides: recent progress towards advanced catalyst design
Zhuang, G., Chen, Y., Zhuang, Z., Yu, Y., & Yu, J. (2020) · Science China Materials · doi:10.1007/s40843-020-1305-6 · Cited by 499
Lauritsen, J. V., Bollinger, M. V., Lægsgaard, E., Jacobsen, K. W., Nørskov, J. K., Clausen, B. S., Topsøe, H., & Besenbacher, F. (2004) · Journal of Catalysis · doi:10.1016/j.jcat.2003.09.015 · Cited by 438
Metadata
- Authors
- Over, H., Kim, Y. D., Seitsonen, A. P., Wendt, S., Lundgren, E., Schmid, M., Varga, P., Morgante, A., & Ertl, G.
- Venue
- Science
- Published
- 2000-02-25
- Volume
- 287
- Issue
- 5457
- Pages
- 1474-1476
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1993357810
- Cited by
- 930
- References
- 0
- FWCI
- 36.25
- Type
- journal article
- Language
- en
- Open access
- closed
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- Over, H., Kim, Y. D., Seitsonen, A. P., Wendt, S., Lundgren, E., Schmid, M., Varga, P., Morgante, A., & Ertl, G. (2000). Atomic-Scale Structure and Catalytic Reactivity of the RuO2(110) Surface. Science. https://doi.org/10.1126/science.287.5457.1474
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