Characterization of carbon deposit with controlled carburization degree

• Autorzy: Helminiak A. , Mijowska E. , Arabczyk W.
• Języki publikacji: EN

Abstrakty

EN

Promoted nanocrystalline iron was carburized in a differential tubular flow reactor with thermogravimetric measurement of mass changes. The carburization process was carried out in the presence of pure methane under atmospheric pressure at 650 °C to obtain different carburization degrees of the sample. The carburized iron samples were characterized by the X-ray diffraction, high-resolution transmission electron microscope in the energy-dispersive X-ray spectroscopy mode, thermoprogrammable oxidation, and Raman spectroscopy. As a result of the methane decomposition on the nanocrystalline iron the following nanocrystalline products were observed: iron carbide Fe3C, graphite, iron and nanotubes. The crystallinity of the samples increased with the carburization degree.

Słowa kluczowe

EN

nanocrystalline iron; carburization process; carburization degree; carbon deposit; iron carbide

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2013
• Tom: Vol. 31, No. 1
• Strony: 29--35
• Opis fizyczny: Bibliogr. 13 poz., rys., wykr.

Twórcy

autor

Helminiak A.

autor

Mijowska E.

autor

Arabczyk W.

• West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322 Szczecin, Poland

Bibliografia

• [1] RADUSHKEVICH A.W., Russ. J. Phys. Chem.. 26, (1952)88.
• [2] TAKENAKA S., SERIZAWA M., OTSUKA K., J. Catal.,222, (2004) 520.
• [3] BAKER R.T.K., BARBER M.A., HARRIS P.S., FEATES F.S., WAITE R.J., J. Catal., 26, (1972) 51.
• [4] TAKENAKA S., KOBAYASHI K., OGIHARA H., OTSUKA K., J. Catal., 217, (2003) 79.
• [5] NARKIEWICZ U., PODSIADŁY M., JEDRZEJEWSKI R., PELECH I., Appl. Catal. A:General, 384, (2010) 27.
• [6] ERMAKOVA M.A., ERMAKOV D.YU., CHUVILIN A.L., KUVSHINOV G.G., J. Catal., 201, (2001) 183.
• [7] SCHLOGL ¨ R.,Preparation and activation of the technical ammonia synthesis catalyst, Catalityc Ammonia Synthesis, Fundamentals and Practice, J.R. Jennings, Plenum Press, New York 1991.
• [8] ARABCZYK W., ZIEBRO J., KALUCKI K., SWIERKOWSKI R., JAKRZEWSKA M.J., Chemik, 1, (1996) 22.
• [9] ARABCZYK W., KONICKI W., NARKIEWICZ U., Solid State Phenomena, 94, (2003) 181.
• [10] FERRARI A.C., ROBERTSON J., Phys. Rev., 61, (2000) 14095.
• [11] BOROWIAK PALEN E., STEPLEWSKA A., BACHMATIUK A., RMMELI H., KALENCZUK R.K., Mater. Sci. Forum, 703, (2010) 636.
• [12] MELLOR J.W., A comprehensive treatise on inorganic and theoretical chemistry, Longman, London 1957.
• [13] SHIMODAIRA N., MASUI A., J. Appl. Phys., 92, (2002) 902.