Fig. 3: CO2 gas sorption analysis.
From: Quantification of gas-accessible microporosity in metal-organic framework glasses
a CO2 sorption isotherms collected at 195 K of ZIF-4 and ZIF-zni and their corresponding thermal products. ZIF-4 derivatives are shown as squares. ZIF-zni derivatives are shown as circles. b CO2 isotherms collected at 195 K of ZIF-62 and TIF-4 and their corresponding glasses. ZIF-62 derivatives are shown as rhombs. TIF-4 derivatives are shown as triangles. In panels a and b adsorption and desorption, branches are shown as closed and open symbols, respectively. c Bar plot of the micropore volumes (Vpore) for all crystalline ZIFs and their corresponding glasses derived from the CO2 isotherms at 195 K. d Plot of density against Vpore of all crystalline ZIFs with the exponential fit. The ZIF glass bulk densities can be estimated based on their experimentally obtained Vpore (see light grey area).
