Repeated CO adsorption measurements on PR C

3.2. CO2 adsorption performance of various samples
Fig. 5. CO2 adsorption isotherms for (a) DYKDDDDK prepared ultrafine fibers and (b) commercial carbon materials at 25 °C. (c) Expansion of the above adsorption isotherms below 160 mbar.Figure optionsDownload full-size imageDownload as PowerPoint slide
PR-C exhibits outstanding saturated CO2 adsorption capacity as compared to most reported porous adsorbent materials. The CO2 adsorption uptakes of PR-C at 1 bar and 25 °C outperforms the values of reported porous materials [16], [17], [40], [48], [49] and [50] under the same conditions. Detailed comparisons are base listed in Table 2.
Table 2.
CO2 adsorption capacity comparison of various porous materials at 25 °C and 1 bar.MaterialsCapacity (mmol g−1)Refs.Porous carbon nanosheets2.88[16]Soft-templated mesoporous carbons1.49[48]Commercial activated carbons including BPL, Maxsorb and Norit R1<2.00[40]Isoreticular zeolitic imidazolate frameworks2.20[49]KOH-activated graphite nanofibers1.35[50]N-containing porous carbon monoliths2.90[17]PR-C2.92This workFull-size tableTable optionsView in workspaceDownload as CSV