Simultaneous self-exfoliation and autonomous motion of MoS2 particles in water

Hong Wang, Zdenek Sofer, James Guo Sheng Moo, Martin Pumera

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Two-dimensional (2D) transitional metal dichalcogenides (TMDCs) have been receiving significant research interest due to their unique physical and electronic properties. We report the design of a MoS2 based motor that can display simultaneous self-exfoliation and autonomous motion at the surface of water. Exfoliation of bulk MoS2via sodium intercalation offers an attractive way to obtain solution-phase 2D MoS2 nanosheets on a large scale. The motion of the MoS2 particles results from the surface tension gradients generated by the naphthalene distributed in the MoS2 particles. A combination of self-exfoliation and propulsion in an unmodified water environment hence leads to a new platform which holds great promise for new applications of TMDC materials in small scale motors.

Original languageEnglish
Pages (from-to)9899-9902
Number of pages4
JournalChemical Communications
Issue number48
Publication statusPublished - 2015 Jun 18

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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