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Methanol Oxidation on PtRu Electrodes. Influence of Surface Structure and Pt−Ru Atom Distribution
Abstract
The activities of different types of PtRu catalysts for methanol oxidation are compared. Materials used were: UHV-cleaned PtRu alloys, UHV-evaporated Ru onto Pt(111) as well as adsorbed Ru on Pt(111) prepared with and without additional reduction by hydrogen. Differences in the catalytic activity are observed to depend on the preparation procedure of the catalysts. The dependence of the respective catalytic activities upon the surface composition is reported. UHV−STM data for Pt(111)/Ru show the formation of two- and three-dimensional structures depending on surface coverage. A molecular insight on the electrochemical reaction is given via in situ infrared spectroscopy. Analysis of the data indicates that the most probable rate-determining step is the reaction of adsorbed CO with Ru oxide.
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Cited by
Size-Selected Synthesis of PtRu Nano-Catalysts: Reaction and Size Control Mechanism
Bock, C., Paquet, C., Couillard, M., Botton, G. A., & MacDougall, B. R. (2004) · Journal of the American Chemical Society · doi:10.1021/ja0495819 · Cited by 699
Park, K. C., Jang, I. Y., Wongwiriyapan, W., Morimoto, S., Kim, Y. J., Jung, Y. C., Toya, T., & Endo, M. (2010) · Journal of Materials Chemistry · doi:10.1039/b923153f · Cited by 66
Metadata
- Authors
- Iwasita, T., Hoster, H., John-Anacker, A., Lin, W. F., & Vielstich, W.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1999-11-16
- Volume
- 16
- Issue
- 2
- Pages
- 522-529
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2010622537
- Cited by
- 416
- References
- 0
- FWCI
- 14.86
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Methanol Oxidation on PtRu Electrodes. Influence of Surface Structure and Pt−Ru Atom Distribution. https://app.cochat.ai/papers/10.1021/la990594n
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- Iwasita, T., Hoster, H., John-Anacker, A., Lin, W. F., & Vielstich, W. (2000). Methanol Oxidation on PtRu Electrodes. Influence of Surface Structure and Pt−Ru Atom Distribution. Langmuir. https://doi.org/10.1021/la990594n
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