Mossbauer and X-ray diffraction study of mackinawite FeS1-x air oxidation

被引：0
|
作者：
Mullet, M [1 ]
Boursiquot, S [1 ]
Abdelmoula, M [1 ]
Ehrhardt, JJ [1 ]
Génin, JM [1 ]
机构：
[1] Univ Nancy 1, CNRS, UMR 7564, Lab Chim Phys & Microbiol Environm, F-54600 Villers Les Nancy, France
来源：
HYPERFINE INTERACTIONS (C), VOL 5, PROCEEDINGS | 2002年
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The dry oxidation of mackinawite FeS1-x, at room temperature and atmospheric pressure has been studied by X-ray diffiraction (XRD), transmission electron microscopy (TEM) and transmission Mossbauer spectroscopy (TMS). After 7 days of air-oxidation, slow disappearance of mackinawite occurs with concomittant appearance of greigite Fe3S4, elemental sulphur S(0), as well as poorly crystallized iron (oxyhydr)oxides (magnetite Fe3O4 and probably goethite alpha-FeOOH). Greigite, which is an intermediate reaction product, and mackinawite have disappeared after 6 months of oxidation, and the final oxidation products are elemental sulphur and iron (oxyhydr)oxides.
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页码：443 / 446
页数：4
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