Integrated, one-pot carbon capture and utilisation using porous ionic liquids

Abstract

Porous ionic liquids combining alkylphosphonium halides with ZIF–8 absorb large amounts of carbon dioxide that can be catalytically coupled with epoxides to form cyclic carbonates. High activity and selectivity under...

Type II porous ionic liquid based on metal-organic cages that enables l-tryptophan identification

“…Both of Type III porous liquids use phosphonium-based ionic liquid as the solvent. ZIF-8/THTP_Cl 49 exhibited similar l -Trp uptake as in HD/THTP_Cl, but the l -Tyr uptake in ZIF-8/THTP_Cl is close to l -Trp. The l -Trp uptake in HZSM-5/THTP_Br 43 is four times lower than HD/THTP_Cl probably because of its narrow pore size, and the uptake of l -Phe and l -Tyr is also highly reduced too.…”

Porous liquids – the future is looking emptier

“…A method for enhancing CCU through use of porous liquids has also been recently reported, where addition of ZIF-8 to a catalytic ionic liquid not only increased the CO 2 uptake, it greatly increased its catalysis with epoxides to form cyclic carbonates, as well as increasing the overall yield. 88 …”

“…In addition to the selective capture of CO 2 , porous liquids have also recently been exploited for CCS and carbon capture and utilisation (CCU). 87,88 A recent work demonstrated how the adaptation of HS nanorod porous liquids can be combined with carbonic anhydrase, a metalloenzyme effective for converting CO 2 to CaCO 3 , as a material for CCS. 87 The enzyme was suspended in the OS portion of the porous liquid, resulting in a uid material with high CO 2 uptake and the ability to sequester CO 2 .…”

“…A method for enhancing CCU through use of porous liquids has also been recently reported, where addition of ZIF-8 to a catalytic ionic liquid not only increased the CO 2 uptake, it greatly increased its catalysis with epoxides to form cyclic carbonates, as well as increasing the overall yield. 88 The separation and selective uptake of other gaseous molecules has also been studied in porous liquids, for example, modication of the pore size and shape in POCs in a type II porous liquid makes it possible to control gas uptake and selectivity for small gases -Xe uptake enhancement was effectively eliminated in a porous liquid using this method. 30 Similarly, James and coworkers recently demonstrated how combining selected porous components and carrier liquids in type III porous liquids is effective in tuning gas uptake selectivity.…”

Unravelling free volume in branched-cation ionic liquids based on silicon

“…7 The gas absorption capacities of both components are combined 7 to generate a liquid state with high gas capacity, allowing for chemical transformations 5,6 at mild pressures and temperatures. 8 These discoveries point towards the importance of having solvents with a high free volume that would lead to high solvation capacities (especially of small-size gas solutes), even when solute–solvent interactions are not favourable.…”