Magnetic properties of iron/graphite core-shell structured nanoparticles prepared by annealing of Fe-C-N nanocomposite

被引：0
|
作者：
David, B
Pizúrová, N
Schneeweiss, O
Bezdicka, P
Alexandrescu, R
Morjan, I
Crunteanu, A
Voicu, I
机构：
[1] AS CR, Inst Phys Mat, CZ-61662 Brno, Czech Republic
[2] AS CR, Inst Inorgan Chem, CZ-25068 Rez, Czech Republic
[3] Natl Inst Laser Plasma & Radiat Phys, R-76900 Bucharest, Romania
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 2004年 / 54卷
关键词：
iron/graphite; core-shell; nanoparticles;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We are reporting the core-shell structured iron/graphite nanoparticles formed during annealing of a nanopowder prepared by laser pyrolysis of gas phase reactants. The originally synthesized Fe-C-N nanocomposite powder has been characterized by TEM, XRD and magnetic measurements. Nanopowder was heated up to 800degreesC at similar to 1 Pa vacuum. Presence of iron nanoparticles with mean diameter 40 nm in the annealed state of nanopowder was proved by XRD and TEM analyses. Mossbauer spectroscopy was used for characterization of synthesized/annealed nanopowder to confirm the qualitative change in phase composition.
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页码：D85 / D88
页数：4
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