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Actively controlled oxidation of Cu{001} with hyperthermal O$$_{2}$$ molecular beam

Okada, Michio*; Moritani, Kosuke; Goto, Seishiro*; Kasai, Toshio*; Yoshigoe, Akitaka ; Teraoka, Yuden

The oxidation of Cu(001) with hyperthermal O$$_{2}$$ molecular beams was investigated using X-ray photoemission spectroscopy in conjunction with a synchrotron light source. The efficiency of oxidation is higher than that with ambient thermal O$$_{2}$$. Further oxidation under oxygen coverage larger than 0.5 ML occurs rather inefficiently even for the 2.3 eV beam irradiation. We found such slow oxidation of Cu corresponding to the initial stage of the Cu$$_{2}$$O formation can be interpreted in terms of a collision-induced-adsorption mechanism. The kinetics of the dissociative adsorption is well described using the first order kinetics in a simple Langmuir-type adsorption model.

Language

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English

Journal

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Journal of Chemical Physics

Volume

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119

Number

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14

Pages

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p.6994 - 6997

Publication Year/Month

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2003/10

Meeting title

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Held date

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Location (city)

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Location (country)

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Patent information

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PDF

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Paper URL

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https://doi.org/10.1063/1.1615961

DOI for research data

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Keywords

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Cu(001); O$$_{2}$$; Translational Kinetic Energy; Photoemission Spectroscopy; Oxidation; Synchrotron Radiation; Reaction Kinetics; Dissociative Adsorption; Molecular Beam

Research Facility

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SPring-8(大型放射光施設)

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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大阪大学

Accesses

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- Accesses

InCites™

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Percentile:78.24

Category:Chemistry, Physical

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