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.
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.
基金
financially supported by the Russian Science Foundation(Project No.15-13-10043)
关键词
碳纳米纤维
氮掺杂
生长机理
镍基催化剂
Carbon nanofibers
Nitrogen doping
Growth mechanism
Nickel-based catalyst