Nanolubrication: How Do MoS2-Based Nanostructures Lubricate?

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Milen Stefano - , TUD Dresden University of Technology, Bulgarian Academy of Sciences (Author)
  • Andrey N. Enyashin - , TUD Dresden University of Technology, Russian Academy of Sciences (Author)
  • Thomas Heine - , Jacobs University Bremen (Author)
  • Gotthard Seifert - , Chair of Theoretical Chemistry (Author)

Abstract

Inorganic MoS2 nanotubes under high pressure have been investigated at the atomistic scale using Born−Oppenheimer molecular dynamics simulations. We show that the low friction coefficient at high loads is not due to the ball-bearing effect. Instead the nanostructures burst under high loads and form nanoplatelets which attach themselves at the material surfaces of closest contact, effectively leading to local “nanocoating” which results in friction coefficients identical to those of lubricants based on MoS2 platelets. The breakup process always starts from the innermost tube, which opens the possibility to tune the nanomaterials to be effective at well-defined loads.

Details

Original languageEnglish
Pages (from-to)17764–17767
Number of pages4
JournalJournal of Physical Chemistry C, Nanomaterials and interfaces
Volume112
Issue number46
Publication statusPublished - 2008
Peer-reviewedYes

External IDs

Scopus 57249084227

Keywords