Table 1. Summary of Pseudoequilibrium CO₂ Uptake at –20 and 25 °C and 400 ppm (Measured by the Volumetric System, SAP).

	–20 °C				25 °C
			adsorption rate (mmol/g/min)a				adsorption rate (mmol/g/min)a
adsorbent (powders)	CO2 uptake (mmol/g)	amine efficiency	initial	after 2 h	CO2 uptake (mmol/g)	amine efficiency	initial	after 2 h
MIL-101(Cr)	0.01 ± 0.008				0.0008 ± 1.46 × 10–4
MIL-101(Cr) _10 wt % PEI	0.05 ± 0.004	0.02			0.006 ± 9.29 × 10–4	0.002
MIL-101(Cr) _30 wt % PEI	0.78 ± 0.03	0.11	0.018	2.13 × 10–4	0.24 ± 0.02	0.03	0.021	1.05 × 10–4
MIL-101(Cr) _50 wt % PEI	1.64 ± 0.17	0.13	0.015	6.21 × 10–4	1.81 ± 0.17	0.14	0.016	4.75 × 10–4
MIL-101(Cr) _10 wt % TEPA	0.02 ± 0.005	0.01			0.002 ± 6.93 × 10–4	0.0005
MIL-101(Cr) _30 wt % TEPA	1.12 ± 0.02	0.14	0.021	2.66 × 10–4	0.39 ± 0.12	0.05	0.022	2.54 × 10–5
MIL-101(Cr) _50 wt % TEPA	1.26 ± 0.28	0.10	0.012	5.71 × 10–4	2.14 ± 0.12	0.16	0.017	2.70 × 10–4

^aThe adsorption rate was obtained based on the TGA/DSC data shown in Figure S4.