Chinese Journal of Catalysis ›› 2016, Vol. 37 ›› Issue (1): 169-176.DOI: 10.1016/S1872-2067(15)60982-2

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Comparison of growth mechanisms of undoped and nitrogen-doped carbon nanofibers on nickel-containing catalysts

Vladimir V. Chesnokova, Olga Yu. Podyachevaa, Alexander N. Shmakova,b, Lidiya S. Kibisa,b, Andrei I. Boronina,b, Zinfer R. Ismagilova,c   

  1. a Boreskov Institute of Catalysis, Novosibirsk 630090, Russia;
    b Novosibirsk State University, Novosibirsk 630090, Russia;
    c Institute of Coal Chemistry and Materials Science, Kemerovo 650000, Russia
  • Received:2015-08-28 Revised:2015-09-30 Online:2015-12-26 Published:2015-12-26
  • Contact: Olga Yu. Podyacheva

Abstract:

The growth mechanisms of carbon nanofibers on Ni catalysts and nitrogen-doped carbon nanofibers on Ni and Ni-Cu catalysts were studied. The growth of both types of nanofibers was found to occur by a mechanism that included the formation of surface non-stoichiometric nickel carbide followed by the dissolution and diffusion of carbon, or carbon and nitrogen into the bulk of the catalyst particles.

Key words: Carbon nanofibers, Nitrogen doping, Growth mechanism, Nickel-based catalyst