A 13C NMR study of the carbon dioxide absorption and desorption equilibria by aqueous 2-aminoethanol and N-methyl-substituted 2-aminoethanol

“Switchable Water”: Aqueous Solutions of Switchable Ionic Strength

“…[6] Although the goals of the present research are entirely different from those of CO 2 capture, it seemed that amines that have been found to be very effective for CO 2 capture could be a good starting point for the present study.…”

“…Recent work by Mani and co-workers has shown that the removal of carbamate ions in water to give neutral amines by heating and sparging is quite difficult. [6] Such carbamate formation would therefore decrease the efficiency of reverting a high ionic strength solvent back to a low ionic strength solvent.…”

CO2 Fixation into Novel CO2 Storage Materials Composed of 1,2‐Ethanediamine and Ethylene Glycol Derivatives

“…The formation of alkylcarbonate salts (-CO 3 À · + H 3 N-) was confirmed by observing the characteristica lkylcarbonate peak at 164.21 ppm ( Figure S3) in the solid-state 13 CNMR spectra. [16,17] Subsequently,a nX RD analysis showed that similar crystalline structures( 14.708,1 9.028,2 2.488,2 5.518, 28.458,a nd 29.788)a re evident in PCO 2 SM ( Figure S4). In addition, FTIR spectra provided valuable informationa bout the chemicals tructure of the products formed ( Figure S5), including peaks at 1590a nd 1482 cm À1 (-CO 2 À asymmetrica nd symmetric stretch), [10c] 1370 cm À1 (asymmetric stretcho fc arbonate), [18] 2175 cm À1 (-NH 3 + bend), and 3311cm…”

Recent advances in the synthesis and applications of metal organic frameworks doped with ionic liquids for CO 2 adsorption

“…The MOFs obtained following this method were: (1) 4 ], had multiple functions: solvent, structure-directing agent, fluoride source and catalyst promoter for the creation of F-center, Cd 3 F. The obtained MOFs presented cationic frameworks, in which the BF 4 -anions and the guest molecules, including the non-coordinating 4,4'-bpy and the lattice water, filled in the holes and/or channels.…”

“…A number of CO 2 capture technologies involving physisorption / chemisorption [4,5], membrane separation [6] or molecular sieves [7], carbamation [8], amine physical absorption [9], amine dry scrubbing [10], mineral carbonation [11,12] are already being practiced on laboratory scale or industrially. Current technologies employ aqueous amine solutions (monoethanolamine, diethanolamine and methyldiethanolamine), which adsorb CO 2 at ambient temperature in a thermally reversible manner.…”