Oxidation of stepped Pt(111) studied by x-ray photoelectron spectroscopy and density functional theory

被引：37

作者：

Bandlow, Jochen ^{[1
]}

Kaghazchi, Payam ^{[1
]}

Jacob, Timo ^{[1
]}

Papp, C. ^{[2
]}

Traenkenschuh, B. ^{[2
]}

Streber, R. ^{[2
]}

Lorenz, M. P. A. ^{[2
]}

Fuhrmann, T. ^{[2
]}

Denecke, R. ^{[3
]}

Steinrueck, H. -P. ^{[2
]}

机构：

[1] Univ Ulm, Inst Elektrochem, D-89069 Ulm, Germany

[2] Univ Erlangen Nurnberg, Lehrstuhl Phys Chem 2, D-91058 Erlangen, Germany

[3] Univ Leipzig, Wilhelm Ostwald Inst Phys & Theoret Chem, D-04103 Leipzig, Germany

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 17期

关键词：

ATOMIC OXYGEN; 111; SURFACES; CO; RECONSTRUCTIONS; ADSORPTION; COVERAGES; CATALYSTS; ENERGIES; METALS;

D O I：

10.1103/PhysRevB.83.174107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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(2)-type oxide at the steps, similar oxide chains form on the (111) terraces, indicating the initial stages of bulk oxide formation.

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页数：5

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