Oxidation of Cu $_{3}$ Pt(111) surface with hyperthermal oxygen molecule

Tsuda, Yasutaka*; Makino, Takamasa*; Tsukada, Chie; Yoshigoe, Akitaka ; Fukuyama, Tetsuya*; Okada, Michio*

Oxidation is a main reaction in corrosion processes and its understabding is important to develop anticorrosion materials. In this study, initial oxidation at Cu $_{3}$ Pt(111) surface was investigated by using surface analysis apparatus at BL23SU of SPring-8. The surface oxidized by 2.3 eV molecular beams was analzyed by synchrotron radiation photoelectron spectroscopy. We confirmed that Cu L $_{3}$ M $_{4.5}$ M $_{4.5}$ AES spectrum and Cu-2p XPS spectrum show the only growth of Cu oxide whereas Pt oxide was not formed from the results of Pt-4f XPS. It was also found that the reactivity of Cu $_{3}$ Pd(111) surface is lower than that of Cu $_{3}$ Au(111) surface.

Language	:	Japanese
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Meeting title	:	2017年(平成28年)第64回応用物理学会春季学術講演会
Held date	:	2017/03
Location (city)	:	横浜
Location (country)	:	日本
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Keywords	:	放射光光電子分光; 合金表面酸化; 分子ビーム; 反応ダイナミクス; 選択的反応
Research Facility	:	SPring-8(大型放射光施設)
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Registration No. : BB20170434
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Oxidation of CuPt(111) surface with hyperthermal oxygen molecule

Oxidation of Cu $_{3}$ Pt(111) surface with hyperthermal oxygen molecule