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. 2017 Apr 28;8:15020. doi: 10.1038/ncomms15020

Table 1. Calculated N2 at 77 K adsorption parameters for the various tannin-based materials obtained with or without metal crosslinkers, using different triblock co-polymers as templates, and under various carbonization temperatures.

Sample VSP (cm3 g−1)* SBET (m2 g−1) Vmi (cm3 g−1) Smi (m2 g−1)§ wKJS (nm)|| Vmi CO2 (cm3 g−1)
C@Tannin-Zn 0.23 514 0.20 469
C@Tannin-F127 0.36 395 0.11 245
OMC@F1270.4-800 0.59 773 0.19 475 7.3 0.22
OMC@F1270.6-800 0.76 1057 0.24 601 7.8 0.29
OMC@F1270.8-800 0.58 621 0.12 293 6.9 0.29
OMC@F1271.0-450 0.66 547 0.08 180 8.6
OMC@F1271.0-600 0.67 869 0.17 412 8.2
OMC@F1271.0-800 0.69 734 0.16 390 7.8 0.18
Ni-OMC@F1270.8-450 0.96 996 0.19 464 6.9 0.18
Ni-OMC@F1270.8-600 0.73 769 0.15 356 7.8
Ni-OMC@F1270.8-800 0.52 558 0.14 355 9.2
OMC@F380.8-800 0.49 722 0.16 381 5.3
OMC@F680.8-800 0.58 770 0.15 350 5.3
OMC@F870.8-800 0.62 765 0.17 412 5.9
OMC@F880.8-800 0.61 733 0.13 316 5.7
OMC@P650.8-800 0.60 851 0.15 340 4.2
OMC@P850.8-800 0.66 770 0.17 405 6.6
OMC@P1030.8-800 0.76 825 0.19 466 7.5
OMC@P1230.8-800 0.73 811 0.13 310 5.4
OMC@Bj781-800 0.89 695 0.16 382 17
OMC@TritonX1000.8-800 0.50 782 0.17 407 5.0
OMC@(F127+Ph3P)0.8-800 0.57 496 0.10 244 10.4

*Single point pore volume at relative pressure of 0.98.

Specific surface area calculated using the BET equation in the relative pressure range of 0.02–0.05.

Micropore volume.

§Micropore surface area calculated using the carbon black STSA t-plot equation within the thickness range of 0.354–0.500 nm.

||Pore width from the distribution maxima calculated according to the KJS method47 using carbon black as reference.

Cumulative plot from NLDFT analysis for CO2 isotherms for pores up to 1.5 nm.