THE ADSORPTION OF CHLORINE ON AN FE64NI36(100) SURFACE

被引：1
|
作者：
ZHUANG, S
JI, M
WU, J
LIU, X
TU, J
WANDELT, K
机构：
[1] UNIV SCI & TECHNOL CHINA,STRUCT RES LAB,ANHUI 230026,PEOPLES R CHINA
[2] UNIV BONN,INST PHYS & THEORET CHEM,W-5300 BONN 1,GERMANY
来源：
SURFACE SCIENCE | 1993年 / 287卷
关键词：
D O I：
10.1016/0039-6028(93)90782-F
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：
Chlorine adsorption on an Fe64Ni36(100) surface at 300 K has been studied by AES, XPS, UPS and work-function measurements. Chlorine dissociatively adsorbs on the surface and the uptake curve consists of two stages: an initial rapid chemisorption followed by a slow further uptake. DELTAphi and UPS provide the evidence of a Cl monolayer formed on Fe64Ni36(100) UP to saturation. Chlorine adsorption induces the preferential oxidation of surface Fe atoms and the segregation of Fe to the Fe64Ni36(100) surface at high temperatures. Chlorine preadsorption on the surface strongly reduces or completely suppresses any further uptake of oxygen above a certain chlorine coverage. By contrast, the oxygen presaturated surface cannot inhibit the subsequent uptake of chlorine.
引用
收藏
页码：260 / 263
页数：4
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