OXIDATION OF A POTASSIUM MONOLAYER ON RU(001) STUDIED WITH PHOTOEMISSION, NEXAFS AND VIBRATIONAL EELS

被引：14

作者：

HOFFMANN, FM

WEISEL, M

EBERHARDT, W

FU, ZG

机构：

[1] Exxon Research and Engineering Co., Corporate Research Science Laboratories, Annandale

来源：

SURFACE SCIENCE | 1990年 / 234卷 / 03期

关键词：

D O I：

10.1016/0039-6028(90)90551-I

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The interaction of oxygen with a monolayer of potassium on a Ru(001) surface has been investigated with photoemission and NEXAFS. O 1s core-level data exhibit for low exposures of oxygen a single peak at 531.8 eV. This indicates together with the earlier observation of KO bond formation by EELS that a single KxOy species with equivalent oxygen atoms is formed. NEXAFS data indicate a partially filled O π* orbital and a strongly shifted σ-resonance. Photoemission, vibrational and Auger data suggest an ionic species which is close to potassium Superoxide with the OO bond oriented parallel to the surface. © 1990.

引用

页码：L264 / L270

页数：7

共 24 条

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