Second virial coefficients of fluorinated methanes CH_4−xF_x(x = 0–4) and their binary mixtures

Enhancement of CO2 adsorption and separation in basic ionic liquid/ZIF-8 with core–shell structure

“…In contrast, the N 2 and CH 4 uptakes (about 0.54 and 1.66 cm 3 g À1 at 100 kPa) are much lower than CO 2 uptake (about 22.45 cm 3 g À1 at 100 kPa), which can be regarded as essentially complete exclusion of CH S5 (ESI †), after exposure to CO 2 , a new characteristic peak (corresponding to the stretching frequency of CQO) can be observed at 2351 cm À1 , which is blue-shifted as compared with that of free CO 2 (2349 cm À1 ). 35 This can be attributed to the chemical interaction between CO 2 and [Emim] 2 [IDA]/ZIF-8. 36 Interestingly, the [Emim] 2 [IDA] is deposited on the external surface of ZIF-8.…”