THE EFFECT OF SUBSURFACE OXYGEN ON THE ORIENTATION OF MOLECULAR-OXYGEN ON AG(110)

SURFACE SCIENCE

卷:339

Article

PAWELACREW, J ; MADIX, RJ ; STOHR, J

关键词: CATALYSIS;    CHEMISORPTION;    MOLECULE SOLID REACTIONS;    NEAR EDGE EXTENDED X-RAY ABSORPTION FINE STRUCTURE (NEXAFS);    OXIDATION;    OXYGEN;    SILVER;    THERMAL DESORPTION SPECTROSCOPY;    X-RAY PHOTOELECTRON SPECTROSCOPY;   

DOI  :  10.1016/0039-6028(95)00646-X

来源: Elsevier

【 摘 要 】

The effect of subsurface oxygen on the orientation of molecular oxygen chemisorbed on Ag(110) was investigated using near-edge adsorption fine structure (NEXAFS) analysis. The O-O bond is aligned parallel to the surface, along the [1 $($) over bar$$ 10] azimuth with and without subsurface oxygen. Both the sigma* (532.6 eV) and out-of-plane pi* (530.2 eV) resonances were observed, indicating that the out-of-plane pi* orbital is incompletely filled in the adsorbed state.

【 授权许可】

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