Water boosted CO2/C2H2 separation in L-arginine functionalized metal—organic framework

Pore Environment Optimization of Microporous Metal–Organic Frameworks with Huddled Pyrazine Pillars for C2H2/CO2 Separation

“…As presented in Table S2, some key metrics, including uptake, Q st , and S ads , of DZU-11 on C 2 H 2 /CO 2 separation can be comparable to those of representative MOFs with excellent performance under the same conditions. Of course, we are also soberly aware that the purification performance of the Ni 6 O 6 MOFs toward C 2 H 2 /CO 2 mixture is far from that of the benchmark materials, ,− which exactly motivate us to continue to improve the MOF materials.…”

Deciphering Mechanisms of CO2-Selective Recognition over Acetylene within Porous Materials

“…This specific chemisorptive recognition via strong acid–base interactions for CO 2 gives rise to diamine-Mg 2 (dobpdc) with CO 2 preferential sorption ability over C 2 H 2 . Similarly, MOF-808-ARG, obtained by anchoring l -arginine (ARG) on MOF-808, shows preferential CO 2 sorption over C 2 H 2 due to the chemisorption of amino groups for CO 2 . Moreover, the alkalinity of ARG would be enhanced by moisture to further facilitate its affinity toward acidic CO 2 .…”

“…Similarly, MOF-808-ARG, obtained by anchoring l -arginine (ARG) on MOF-808, shows preferential CO 2 sorption over C 2 H 2 due to the chemisorption of amino groups for CO 2 . 74 Moreover, the alkalinity of ARG would be enhanced by moisture to further facilitate its affinity toward acidic CO 2 . Due to the moisture-boosted effect, both static adsorption capacity and dynamic adsorption capacity of CO 2 were increased, while C 2 H 2 sorption was significantly suppressed.…”

Efficient inverse CO2/C2H2 separation driven by difference in rare thermodynamic affinities in a porous MOF

“…[29][30][31][32][33] To address the difficulties in inverse CO 2 /C 2 H 2 separation, various strategies involving charge matching, structural flexibility control, and three-dimensional molecular sieving of MOFs have been explored in recent years. [34][35][36] Until now, only a few MOFs have been reported for one-step separation of C 2 H 2 from CO 2 /C 2 H 2 mixtures, such as SIFSIX-3-Ni, 36 CD-MOF-1, 26 Tm-MOF, 37 Ce (IV)-MIL-140-4F, 34 MOF-808-ARG, 38 BUCT-C19, 23 Zn-ox-mtz, 39 etc. (Table S1…”