Skip to main content
. 2021 Jan 11;12:268. doi: 10.1038/s41467-020-20628-9

Fig. 3. Gas separation performances of the prepared carbon hollow fiber membranes (CHFMs).

Fig. 3

a Single-gas permeation performances of CHFMs at 25, 60, 100, and 130 °C with 2 bar feed pressure. Hollow symbols represent predicted performance at 200 °C. The gray solid line is drawn based on the 2008 Robeson upper bound by converting permeability to permeance with a thickness of 1 μm. b Single-gas permeances of CHFM-850 as a function of the gas kinetic diameter at 130 °C and 2 bar. The inset figure shows the selectivity of H2 over CO2, N2, and CH4 (error bars represent the standard deviation of three measurements). c Gas separation performance at 130 °C as a function of sp3/sp2 ratio, calculated from XPS data. d 50 mol% H2/50 mol% CO2 mixed gas measurements at different operation pressures (5‒18 bar) at 70 °C (error bars represent the standard deviation of three measurements). e Mixed gas dynamic durability testing (50 mol% H2/50 mol% CO2) of CHFM-700 under dry and humidified conditions at 10 bar and 90 °C.