Figure 3 | Scientific Reports

Figure 3

From: In-situ observation for growth of hierarchical metal-organic frameworks and their self-sequestering mechanism for gas storage

Figure 3

The gas storage mechanism of the pmg-MOF-5 using the in-situ X-ray measurement.

a, The schematic illustration for the in-situ gas sorption X-ray measurements using synchrotron (SPring-8, Japan). b, The gray graph shows the CO2 adsorption of the pristine MOF-5 and the pmg-MOF-5 at a low pressure range of 195 K. The blue stars show the meso/macropore saturation percentages while the red stars show the micropore saturation percentages. c, The raw data obtained by the kinetic in-situ XRD measurements in different times at 70 kPa. d, The scattering intensity of micropores (upper) and meso/macropores (lower) in different times at 70 kPa. At first, the micropores are filled and then the mesopores are filled with CO2 as the adsorption proceeds.

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