Oxidation of stepped Pt(111) studied by x-ray photoelectron spectroscopy and density functional theory
In this comparative density functional theory and x-ray photoelectron spectroscopy study on the interaction of oxygen with stepped Pt(111) surfaces, we show that both the initial adsorption and oxidation occur at the steps rather than terraces. An equivalent behavior was observed for the oxide forma...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2011-05, Vol.83 (17), Article 174107 |
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| container_title | Physical review. B, Condensed matter and materials physics |
| container_volume | 83 |
| creator | Bandlow, Jochen Kaghazchi, Payam Jacob, Timo Papp, C. Tränkenschuh, B. Streber, R. Lorenz, M. P. A. Fuhrmann, T. Denecke, R. Steinrück, H.-P. |
| description | In this comparative density functional theory and x-ray photoelectron spectroscopy study on the interaction of oxygen with stepped Pt(111) surfaces, we show that both the initial adsorption and oxidation occur at the steps rather than terraces. An equivalent behavior was observed for the oxide formation at higher chemical potentials, where, after the formation of a one-dimensional PtO{sub 2}-type oxide at the steps, similar oxide chains form on the (111) terraces, indicating the initial stages of bulk oxide formation. |
| doi_str_mv | 10.1103/PhysRevB.83.174107 |
| format | Article |
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B, Condensed matter and materials physics</jtitle><date>2011-05-11</date><risdate>2011</risdate><volume>83</volume><issue>17</issue><artnum>174107</artnum><issn>1098-0121</issn><eissn>1550-235X</eissn><abstract>In this comparative density functional theory and x-ray photoelectron spectroscopy study on the interaction of oxygen with stepped Pt(111) surfaces, we show that both the initial adsorption and oxidation occur at the steps rather than terraces. An equivalent behavior was observed for the oxide formation at higher chemical potentials, where, after the formation of a one-dimensional PtO{sub 2}-type oxide at the steps, similar oxide chains form on the (111) terraces, indicating the initial stages of bulk oxide formation.</abstract><cop>United States</cop><doi>10.1103/PhysRevB.83.174107</doi></addata></record> |
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| identifier | ISSN: 1098-0121 |
| ispartof | Physical review. B, Condensed matter and materials physics, 2011-05, Vol.83 (17), Article 174107 |
| issn | 1098-0121 1550-235X |
| language | eng |
| recordid | cdi_osti_scitechconnect_21544752 |
| source | American Physical Society Journals |
| subjects | ADSORPTION CALCULATION METHODS CHAINS CHALCOGENIDES CHEMICAL REACTIONS CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY DENSITY FUNCTIONAL METHOD ELECTRON SPECTROSCOPY ELEMENTS INTERACTIONS METALS NONMETALS OXIDATION OXIDES OXYGEN OXYGEN COMPOUNDS PHOTOELECTRON SPECTROSCOPY PLATINUM PLATINUM COMPOUNDS PLATINUM METALS PLATINUM OXIDES SORPTION SPECTROSCOPY SURFACES TRANSITION ELEMENT COMPOUNDS TRANSITION ELEMENTS VARIATIONAL METHODS X-RAY PHOTOELECTRON SPECTROSCOPY |
| title | Oxidation of stepped Pt(111) studied by x-ray photoelectron spectroscopy and density functional theory |
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