Figure 5

The storage capacities for CO2 and CH4 adsorption and their corresponding cyclic performance.
a, The CO2 storage capacities of pmg-MOF-5, MOF-5 and IRMOF-5 samples at room and low (inset) temperatures. b, The cyclic performance for CO2 adsorption cycles in the pmg-MOF-5. c, The CH4 storage capacities of pmg-MOF-5 and MOF-5 at room temperature. d, The cyclic performance of CH4 adsorption cycles in the pmg-MOF-5.