Fig. 2. Experimental CO2 adsorption isotherms at 25 °C of the powdered cobalt-based materials ZIF-9 (blue triangles) and ZIF-67 (red circles), compared with the ZIF-8 CO2 isotherm (black squares) reported by Zornoza et al. 56 Solid lines show simulated ZIF-8 (black) and ZIF-67 (red) isotherms with a good fit to the experimental data (filled symbols). The solid line in the ZIF-9 isotherm is a guide to the eye.
