Studies of the oxidation of iron by air after being exposed to water vapour using angle-resolved X-ray photoelectron spectroscopy and QUASES

被引：44
作者：
Grosvenor, AP
Kobe, BA
McIntyre, NS
机构：
[1] Univ Western Ontario, Western Sci Ctr, London, ON N6A 5B7, Canada
[2] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
来源：
SURFACE AND INTERFACE ANALYSIS | 2004年 / 36卷 / 13期
关键词：
ARXPS; QUASES((TM)); Fe; oxidation; passivation;
D O I：
10.1002/sia.1992
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：
Air oxidation of Fe was compared with and without a pre-exposure to water vapour. Angle-resolved x-ray photoelectron spectroscopy (ARXPS) and QUASES(TM) were used to determine the thickness of the oxide layer formed and its composition. The extent of oxidation was found to be much less if the surface was pre-exposed to water rather than air alone. Studies performed using ARXPS were able to show that the hydroxyl-containing layer located at the surface after Fe was exposed to water vapour was located below the surface after exposure to air. This observation suggested that the oxidation of Fe in air is mediated by cation diffusion. Copyright (C) 2004 John Wiley Sons, Ltd.
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页码：1637 / 1641
页数：5
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