Fig. 3: Gas sorption properties.
From: Benchmarking selective capture of trace CO2 from C2H2 using an amine-functionalized adsorbent
a CO2 and C2H2 sorption isotherms of HP20 (left) and PEI@HP20 (right) at 273, 298, and 308 K. b, c Comparison of CO2 and C2H2 adsorption between PEI@HP20 and typical CO2-selective adsorbents at 298 K. d Comparison of the CO2/C2H2 uptake ratio at 1 kPa and 100 kPa with best-performing CO2-selective adsorbents at 298 K. e Comparison of the CO2 uptake capacity and IAST selectivity for CO2/C2H2 (1/99, v/v) mixture with advanced CO2-selective adsorbents at 298 K. f A comprehensive properties comparison in a pentagonal radar chart for PEI@HP20 and other reported adsorbents.
