Table 1. Texural Properties of N-ACs.
| sample | SBET (m2 g–1)a | Vt (cm3 g–1)b | Vultra (cm3 g–1)c | V (<1 nm) (cm3 g–1)c | V (<2 nm) (cm3 g–1)c | V (<5 nm) (cm3 g–1)c | N (wt %)d | CO2 uptake at 0 °C (mol g–1)e | CO2 uptake at 25 °C (mol g–1)e |
|---|---|---|---|---|---|---|---|---|---|
| N-AC-L | 168 | 0.08 | - | - | 0.02 | 0.06 | 5.8 | 2.6 | - |
| N-AC-Z | 1330 | 0.66 | 0.14 | 0.23 | 0.45 | 0.55 | 5.0 | 4.0 | - |
| N-AC-2-1000 | 1389 | 0.68 | 0.16 | 0.28 | 0.47 | 0.59 | 5.6 | 5.3 | 3.5 |
| N-AC-3-1000 | 2025 | 1.15 | 0.21 | 0.32 | 0.56 | 1.02 | 5.1 | 7.9 | 5.6 |
| N-AC-4-1000 | 1978 | 1.18 | 0.13 | 0.26 | 0.44 | 1.03 | 4.8 | 7.3 | 5.1 |
| N-AC-3-800 | 1655 | 0.78 | 0.12 | 0.25 | 0.50 | 0.67 | 5.4 | 6.2 | 4.2 |
| N-AC-3-1200 | 1902 | 1.10 | 0.18 | 0.29 | 0.45 | 0.93 | 4.9 | 7.6 | 5.2 |
a
Surface area was calculated using the BET method at P/P0 = 0.01–0.2.
b
Total pore volume at P/P0 = 0.99.
c
Cumulative pore volume at pore sizes up to 0.7/1.0/2.0/5.0 nm deduced from N2 adsorption isotherms at 77 K using NLDFT method.
d
Data derived from XPS.
e
Data derived from CO2 adsorption isotherm at 1 bar.