Fig. 4: Density distributions of CO2 and O2 on graphene lattice hosting pore-13 as a function of temperature.

a, b Number densities (\(\rho\)) of CO2 and O2 molecules near the porous graphene positioned at z = 0. Surface density profiles of (c, d) CO2 and (e, f) O2 within 1 nm on the feed side at 298 (c, e) and 423 K (d, f). Note that the limits for the color bars are different for CO2 and O2.