Integrating tri-mural nanotraps into a microporous metal-organic framework for C2H2/CO2 and C2H2/C2H4 separation

Potential of a pH-Stable Microporous MOF for C2H2/C2H4 and C2H2/CO2 Gas Separations under Ambient Conditions

“…Furthermore, we have calculated the separation performance with a 50:50 C 2 H 2 /CO 2 mixture (Figure 4e,f). The corresponding IAST selectivity values are 5.23 at 273 K and 3.93 at 295 K. The equimolar C 2 H 2 /CO 2 separation selectivity value at 295K is also comparable to those of some of the benchmark materials, such as ZrT-1-tetrazol 1 (2.83); M'MOF-2a 66 (1.89); FJU-6-TATB 69 (5.3−3.1); NUM-15a (2.8); 70 and ZJNU-14 (3.42; at 298 K) 68 but significantly higher than those of many reported MOFs, such as FJU-36 71 (2.8); UTSA-222 72 (4.0); and ZJNU-100 73 (3.8) (Table S6).…”

A new TIFSIX anion pillared metal organic framework with abundant electronegative sites for efficient C2H2/CO2separation

“…When compared, physisorptive separation using porous materials is more energy-efficient and eco-friendly. 6,7 However, due to the similar molecular sizes/shapes (3.34 × 3.32 × 5.70 Å 3 for C 2 H 2 ; 3.33 × 3.18 × 5.36 Å 3 for CO 2 ) and physical properties (boiling points: C 2 H 2 , 189.3 K; CO 2 , 194.7 K), efficient C 2 H 2 /CO 2 separation is much more difficult to achieve compared with C 2 H 2 /C 2 H 4 and C 2 H 2 /CH 4 separation. [8][9][10][11][12] The design of advanced porous materials is significant for the application of gas separation.…”

4 in 1: multifunctional europium–organic frameworks with luminescence sensing properties, white light emission, proton conductivity and reverse acetylene–carbon dioxide adsorption selectivity

“…Acetylene is an important feedstock in industry, but CO 2 is an unavoidable contaminant during C 2 H 2 production and should be removed. 56 Separation of C 2 H 2 and CO 2 is a challenging task since both molecules have quite similar physical characteristics: geometrical sizes (3.3 × 3.3 × 5.7 Å for C 2 H 2 and 3.2 × 3.3 × 5.4 Å for CO 2 ), boiling points (184 and 195 K, correspondingly) and enthalpy of vaporization ( ca. 16.7 kJ mol −1 for both gases 57 ).…”