Synthesis of Fe/C Nanocomposites by Decomposition of Iron Pentacarbonyl in Electric Arc Discharge
ALEXANDER V. OKOTRUB1, VLADIMIR L. KUZNETSOV2, ALEXANDRA SHARAYA3, YURIY V. BUTENKO2, ANDREY L. CHUVILIN2, YURIY V. SHUBIN1, VLADIMIR A. VARNEK1, OLIVER KLEIN3 and HUBERT PASCARD3
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia), E-mail: spectrum@che.nsk.su
2Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
3Ecole Polytechnique, 91128, Palaiseau Cedex, Paris (France)
Pages: 743-750
Abstract
A fibrous material composed of filamentary crystals of iron carbide Fe3C or metal iron encapsulated in graphite shells is synthesized. Combined investigation of the structure of the obtained material is performed by means of electron microscopy, powder X-ray diffractometry and Mössbauer spectroscopy. It is discovered that current-voltage characteristics of auto-emission properties of nanoparticles differ from the properties of pure carbon nano-tubes, which is explained by different adsorption characteristics of these materials.
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