催化学报 ›› 2016, Vol. 37 ›› Issue (1): 169-176.DOI: 10.1016/S1872-2067(15)60982-2

• 论文 • 上一篇    下一篇

Ni基催化剂上未掺杂和氮掺杂的碳纳米纤维生长机理的比较

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

  1. a 鲍列斯科夫催化研究所, 新西伯利亚630090, 俄罗斯;
    b 新西伯利亚国立大学, 新西伯利亚630090, 俄罗斯;
    c 煤炭化学和材料科学研究所, 克麦罗沃650000, 俄罗斯
  • 收稿日期:2015-08-28 修回日期:2015-09-30 出版日期:2015-12-26 发布日期:2015-12-26
  • 通讯作者: Olga Yu. Podyacheva
  • 作者简介:Olga Yu. Podyacheva

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

摘要:

研究了Ni催化剂上碳纳米纤维,以及Ni和Ni-Cu催化剂上N掺杂的碳纳米纤维的生长机理.结果表明,这两个过程的机理均包含了表面非计量碳化镍的形成,然后是碳或碳和氮通过催化剂颗粒体相的溶解和扩散.

关键词: 碳纳米纤维, 氮掺杂, 生长机理, 镍基催化剂

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