Catalytic Decomposition of Ethylene on Iron - the Effect of Process Conditions on the Yield and Morphology of Nanocarbon Products

• Autorzy: Narkiewicz U. , Pełech I. , Arabczyk W. , Biedermann K. , Tüschner Ch.
• Języki publikacji: EN

Abstrakty

EN

The catalytic decomposition of ethylene on nanocrystalline iron was investigated. The processes were carried out in a horizontal tube reactor under atmospheric pressure and in the temperature range of 500-800°C. Various process parameters such as: reaction time, temperature, C2H4:H2 ratio, C2H4:Arratio have been examined to determine the effect of these parameters on both the yield of carbon and the morphology of products. The quality of the products was characterized by means of transmission electron microscopy (TEM). According to the observed results, ethylene can be used as a very effective carbon source for growing multi-walled carbon nanotubes (MWCNTs). The meandiameter of the obtained MWCNTs was 20-30 nm. The length of carbon nanotubes in creased with reaction time. The carbon nanotubes obtained in presence of hydrogen or argon in reaction mixture were straighter and less entangled than carbon nanotubes obtained through de composition of pure ethylene.

Słowa kluczowe

EN

ethylene decomposition; nanocarbon materials; nanocrystalline iron catalyst

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2008
• Tom: Vol. 82, nr 9
• Strony: 1743--1752
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Narkiewicz U.

autor

Pełech I.

autor

Arabczyk W.

autor

Biedermann K.

autor

Tüschner Ch.

• Institute of Chemical and Environment Engineering, Szczecin University of Technology, Pułaskiego 10, 70-322 Szczecin, Poland,

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