fig22

Figure 22. Schematic and performance diagrams of pressure-driven electrochemical cell based on GHM. (A) Injection of gas on different sides of electrochemical cell. Change in flow current when (B) forward and (C) reverse pressure are applied to the electrochemical cell. Figures reproduced with permission from Guo et al.^[132] (Copyright © 2013 Wiley). GHM: Graphene hydrogel membrane.