The role of nickel in Ni-containing nanotubes and onions as lubricant additives

L. Joly-Pottuz, B. Vacher, T. Le Mogne, J. M. Martin, T. Mieno, C. N. He, N. Q. Zhao

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

We studied tribological properties of Ni-containing single wall carbon nanotubes and carbon nano-onions. Nickel catalyst particles are often necessary to synthesize these carbon nanoparticles. Nanoparticles were used as additives dispersed in a lubricating poly-alpha-olefin base oil. We show superior tribological properties for carbon nanoparticles containing residual nickel cores. Thus, removal of nickel catalyst from carbon particles is not necessary for excellent tribological performances. Mechanisms of friction and wear reduction are discussed in the light of analytical data. Data suggest the tribo-formation of a Ni-doped carbon-like material.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalTribology Letters
Volume29
Issue number3
DOIs
Publication statusPublished - 2008 Mar 1
Externally publishedYes

Keywords

  • Boundary lubrication
  • Carbon onions
  • Single wall carbon nanotubes
  • Tribology

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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