Plasma synthesis, Mossbauer spectroscopy and X-ray diffraction studies of nanosized iron oxides

被引：4

作者：

Paneva, Daniela ^{[1
]}

Zaharieva, Katerina ^{[1
]}

Grabis, Janis ^{[2
]}

Mitov, Ivan ^{[1
]}

Vissokov, Gheorghi ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Catalysis, BU-1113 Sofia, Bulgaria

[2] Riga Tech Univ, Inst Inorgan Chem, LV-2169 Salaspils, Latvia

来源：

HYPERFINE INTERACTIONS | 2010年 / 198卷 / 1-3期

关键词：

Iron oxides; Plasma synthesis; Mossbauer spectroscopy; MAGNETITE; SIZE; NANOPARTICLES; CATALYSTS; FE3O4;

D O I：

10.1007/s10751-010-0192-5

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：

In this article synthesis and study of iron oxide nanopowders are described. The synthesis of sample 1 and sample 2-iron oxides-was carried out by electric arc plasma cutting of ordinary steel. The sample 3 was prepared by evaporation of Fe2O3/FeO mixture in radio-frequency nitrogen plasma. The characterization of the as prepared iron oxide nanoproducts was achieved by means of Mossbauer spectroscopy and X-ray diffraction analysis. The presence of different phases of iron oxide with a basic phase Fe3-xO4 (magnetite), additional Fe1-xO (wustite) and alpha or gamma-Fe2O3 (hematite or maghemite) with superparamagnetic particles for sample 1 and sample 2 and Fe3-xO4 (magnetite) for sample 3 is observed.

引用

页码：265 / 272

页数：8

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