Structure, composition and magnetic properties of carbon nanotubes doped by Fe during the growth process

The results of complex investigations of the crystalline structure, composition and specific magnetization of the multi-wall carbon nanotubes (CNTs) filled by magnetic nanocomposite are performed. CNT arrays have been synthesized by the high temperature pyrolysis of fluid hydrocarbon - p-xylole [C8H...

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Published inJournal of physics. Conference series Vol. 100; no. 5; p. 052095
Main Authors Labunov, V A, Shulitski, B G, Prudnikava, A L, Yanushkevich, K I
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2008
Subjects
Cementite
Composition
High temperature
Iron carbides
Magnetic properties
Multi wall carbon nanotubes
Nanocomposites
Physics
Pyrolysis
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Summary:The results of complex investigations of the crystalline structure, composition and specific magnetization of the multi-wall carbon nanotubes (CNTs) filled by magnetic nanocomposite are performed. CNT arrays have been synthesized by the high temperature pyrolysis of fluid hydrocarbon - p-xylole [C8H10] in the presence of volatile catalyst - ferrocene [Fe(C5H5)2] at the walls of tubular-type quartz reactor of specially constructed equipment. It was revealed that the obtained CNTs constitute complex nanocomposite: C - Fe3C - Fe5C2 - Fe. The magnetic properties of such CNTs in the temperature region of 78≤T≤1060 K are conditioned by the ferric carbide (in the form Fe3C H Fe5C2) and Fe.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/100/5/052095