Synthesis of Filamentous Carbon Material via Decomposition of CF₂Cl₂ over Self-Organizing Ni-Cr Catalyst

Abstract:

The way to produce the nanostructured carbon filaments via H₂-assisted catalytic decomposition of CF₂Cl₂ over self-organizing Ni-based catalyst has been reported. The self-organizing 6%Ni/CNM catalyst, where CNM is a carbon nanomaterial, resulted from carbon erosion of bulk Ni-Cr alloy (nichrome) in C₂H₄Cl₂ vapors was also shown to be effective for catalytic chemical vapor deposition of CF₂Cl₂ with formation of bimodal carbon structures. It was demonstrated that interaction of nichrome with CF₂Cl₂/H₂ reaction mixture at 600 °C leads to its rapid disintegration caused by carbon erosion to form disperse active Ni-particles catalyzing the growth of carbon filaments. The resulted filamentous carbon material is characterized with high textural parameters.

• Periodical: Materials Science Forum (Volume 917)
• Pages: 122-126
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.917.122
• Online since: March 2018
• Authors: Yurii I. Bauman, Ilya V. Mishakov*, Denis Korneev, Aleksey A. Vedyagin
• Keywords: 1,2-Dichloroethane, Bulk Alloys, Carbon Erosion, Carbon Fibers, Catalytic Chemical Vapor Deposition, CFC-12, Halogenated Hydrocarbons, Nichrome

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