Fast and Efficient Preparation of Exfoliated 2H MoS2 Nanosheets by Sonication-Assisted Lithium Intercalation and Infrared Laser-Induced 1T to 2H Phase Reversion.
Exfoliated 2H molybdenum disulfide (MoS2) has unique properties and potential applications in a wide range of fields, but corresponding studies have been hampered by the lack of effective routes to it in bulk quantities. This study presents a rapid and efficient route to obtain exfoliated 2H MoS2, which combines fast sonication-assisted lithium intercalation and infrared (IR) laser-induced phase reversion. We found that the complete lithium intercalation of MoS2 with butyllithium could be effected within 1.5 h with the aid of sonication. The 2H to 1T phase transition that occurs during the lithium intercalation could be also reversed by IR laser irradiation with a DVD optical drive.
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.|State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China.
Xiaobin
X
Fan
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Pengtao
P
Xu
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Dekai
D
Zhou
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Yifan
Y
Sun
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Yuguang C
YC
Li
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Minh An T
MA
Nguyen
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Mauricio
M
Terrones
Departments of Chemistry, Biochemistry and Molecular Biology, and Physics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Thomas E
TE
Mallouk
MoS2; exfoliation; infrared laser; intercalation; sonication