Fig. 13From: 2D-enabled membranes: materials and beyonda Diffusion coefficient and selectivity, b solubility coefficient and selectivity of N2, CH4, and CO2 in pure polymer membrane, GO based MMM and functionalized GO based MMM. c Robeson plot for CO2/CH4 separation. d Robeson plot for CO2/N2 separation [141]. Adapted with permission from ref [141]. Copyright 2015 for American Chemical SocietyBack to article page