Preparation of carbon nanotubes using cvd CVD method

Iwona Pełech

doi:10.2478/v10026-010-0033-y

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Preparation of carbon nanotubes using cvd CVD method

Green Sciences

Volume 12 (2010): Issue 3 (September 2010)

By: Iwona Pełech

Open Access

|Sep 2010

Abstract

In this work preparation and characteristic of modified nanocarbons is described. These materials were obtained using nanocrystalline iron as a catalyst and ethylene as a carbon source at 700°C. The influence of argon or hydrogen addition to reaction mixture was investigated. After ethylene decomposition samples were hydrogenated at 500°C. As a results iron carbide (Fe₃C) in the carbon matrix in the form of multi walled carbon nanotubes was obtained. After a treatment under hydrogen atmosphere iron carbide decomposed to iron and carbon and small iron particles agglomerated into larger ones.

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