ON THE ABILITY OF CS-PRECOVERED AND NA-PRECOVERED NI(111) SURFACES TO FORM DIOXYGEN SPECIES UPON OXYGEN EXPOSURE

被引：7

作者：

DOLLE, P

LOUIS, P

JUPILLE, J

机构：

[1] Laboratoire Maurice Letort, 54600 Villers-les-Nancy, Rue de Vandoeuvre

来源：

VACUUM | 1990年 / 41卷 / 1-3期

关键词：

D O I：

10.1016/0042-207X(90)90301-E

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The adsorption of oxygen on a sodium-precovered (with one full monolayer) Ni(111) surface at 100 K has been examined by means of UP and XP spectroscopies. The O2- ion appears first. Above 5 × 10-5 Pa s, a dioxygen species is formed and at exposures higher than 3 × 10-4 Pa s, Ni-O bonding is observed. Concerning oxygen species, the Na-O-Ni(111) surface which involves a noticeable contribution from the O2- ion, differs from the Cs-O-Ni(111) surface where dioxygen species dominate. © 1990 Pergamon Press plc.

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页码：174 / 176

页数：3

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