Abstract
Successful assembling fabrication of two-dimensional (2D) materials is regarded as a positive strategy to explore the mechanical, electronic, and optical properties of 2D materials and it can further broaden their application as well. Herein we demonstrate the convenient fabrication of a triphasic 2H@1T-MoS2/graphene heterostructure by stacking lateral 2H-/1T-molybdenum disulfide (MoS2) heterostructures on graphene with the assistance of supercritical carbon dioxide (SC CO2). More importantly, during the stacking process of heterostructure, it can be found out that graphene plays an important role on the transfer of 2H-MoS2 to 1T-MoS2, and the latter is advantageous in electrochemical and photoelecrochemical evolution of hydrogen. Therefore, the controllable fabrication of triphasic 2H@1T-MoS2/graphene heterostructure with different ratios of 2H-/1T-MoS2 can be achieved. Further the application of the as-fricated triphasic heterostructure in hydrogen evolution reaction has been demonstrated in this study.
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