POTASSIUM OXYGEN INTERACTIONS ON A RU(001) SURFACE

被引：16

作者：

HRBEK, J

SHAM, TK

SHEK, ML

XU, GQ

机构：

[1] BROOKHAVEN NATL LAB, NSLS, UPTON, NY 11973 USA

[2] UNIV WESTERN ONTARIO, DEPT CHEM, LONDON N6A 5B7, ONTARIO, CANADA

来源：

LANGMUIR | 1992年 / 8卷 / 10期

关键词：

D O I：

10.1021/la00046a019

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction of potassium with oxygen has been examined using synchrotron-based photoemission and NEXAFS, thermal desorption; work function measurements, and isotope exchange. Potassium coverages on Ru(001) surface ranging from monolayer to multilayer were investigated. Oxygen coadsorbed with potassium at 80 K forms a potassium-dioxygen complex, where both peroxide and superoxide ions were identified. The complex has high thermal stability on the Ru(001) surface, decomposing and desorbing at T > 900 K.

引用

页码：2461 / 2472

页数：12

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[1] A MODEL FOR THE WORK FUNCTION CHANGE CAUSED BY CO-ADSORPTION [J].