title: Simultaneous self-exfoliation and autonomous motion of MoS2 particles in water.
abstract: 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.
authors.affiliation: Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore. pumera.research@gmail.com.
authors.forename: Hong
authors.initials: H
authors.lastname: Wang
authors.forename: Zdenek
authors.initials: Z
authors.lastname: Sofer
authors.forename: James Guo Sheng
authors.initials: JG
authors.lastname: Moo
authors.forename: Martin
authors.initials: M
authors.lastname: Pumera