THE INTERACTION OF CU(100)-FE SURFACES WITH OXYGEN STUDIED BY X-RAY PHOTOELECTRON-SPECTROSCOPY

被引：38
|
作者：
DENDAAS, H [1 ]
PASSACANTANDO, M [1 ]
LOZZI, L [1 ]
SANTUCCI, S [1 ]
PICOZZI, P [1 ]
机构：
[1] UNIV UTRECHT, DEBYE INST, DIV SURFACE SCI, 3508 TB UTRECHT, NETHERLANDS
来源：
SURFACE SCIENCE | 1994年 / 317卷 / 03期
关键词：
D O I：
10.1016/0039-6028(94)90285-2
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 oxidation of Cu(100)-Fe surfaces was studied using XPS. Surfaces containing 0-10 ML of iron were oxidised at room temperature exposing 2 Pa . s of oxygen. For all surfaces evidence for Fe2O3 was found. For surfaces containing more than 2 ML of iron, metallic Fe2p3/2 and 2p1/2 signatures were observed. The analysis of the change of the 2p peak shape of a surface containing 1 ML of Fe as a function of different oxygen coverages showed that oxidation proceeds via an intermediate containing both Fe2+ and Fe3+.
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页码：295 / 302
页数：8
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