Fig. 7
From: Anti-fouling graphene-based membranes for effective water desalination
Water permeation energy required for water vapour passage through overlapping grain boundaries in graphene. The minimum energy pathways of the H2O migration through the channels created by two overlapping grain boundaries in multilayer graphene sheets. Simulation results show that sufficient energy needs to be supplied to the graphene film in order for water vapour permeation to occur through the graphene channels, which is supplied in the form of heat in the desalination process
