  Two-dimensional (2D) materials have many promising applications, but their
scalable production remains challenging. Herein, we develop a glue-assisted
grinding exfoliation (GAGE) method in which the adhesive polymer acts as a glue
to massively produce 2D materials with large lateral sizes, high quality, and
high yield. Density functional theory simulation shows that the exfoliation
mechanism involves the competition between the binding energy of selected
polymers and the 2D materials which is larger than the exfoliation energy of
the layered materials. Taking h-BN as an example, the GAGE produces 2D h-BN
with an average lateral size of 2.18 {\mu}m and thickness of 3.91 nm. The
method is also extended to produce various other 2D materials, including
graphene, MoS2, Bi2O2Se, vermiculite, and montmorillonite. Two representative
applications of thus-produced 2D materials have been demonstrated, including
h-BN/polymer composites for insulating thermal conduction and MoS2
electrocatalysts for large-current-density hydrogen evolution, indicating the
great potential of massively produced 2D materials.
