Mössbauer and X-Ray studies of MgO-Fe nanocomposite

被引：0
|
作者：
Nadutov V.M. [1 ]
Voynash V.Z. [1 ]
Svystunov E.A. [1 ]
Perekos A.E. [1 ]
Zalutsky V.P. [1 ]
机构：
[1] Kurdyumov Metal Physics Institute, National Academy of Sciences of Ukraine
来源：
Bulletin of the Russian Academy of Sciences: Physics | 2013年 / 77卷 / 6期
关键词：
Magnetite; Oxalate; Isomer Shift; Wustite; Fischer Tropsch;
D O I：
10.3103/S106287381306021X
中图分类号：
学科分类号：
摘要：
XRD phase analysis and Mössbauer spectroscopy are used to study the structure of magnesiowustite (Mg0.9Fe0.1) obtained via the decomposition of mixed iron-magnesium oxalate in different atmospheres, the structure of MgO-α-Fe composite after reduction by hydrogen in Ar + 5% H2 gas mixture at 800 C and 1000 C, and the structure of iron at every stage. It was shown that fine particles of α-Fe are obtained upon the decomposition of iron-magnesium oxalate in vacuum at 1000 C. If a precursor is decomposed in high purity Ar, α-Fe particles form during reduction at lower temperature (800 C) due to the partial decomposition of one of the phase components - magnetite. © 2013 Allerton Press, Inc.
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页码：716 / 721
页数：5
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