Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 48, Pages 9899-9902Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc03401a
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Funding
- Nanyang Technological University
- Singapore Ministry of Education Academic Research Fund AcRF Tier 1 [2013-T1-002-064, RG99/13]
- Czech Science Foundation (GACR) [15-07912S]
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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 MoS2 via 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.
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