| Full text | |
| Author(s): |
Simon, Nathalia M.
[1]
;
Zanatta, Marcileia
[1]
;
dos Santos, Francisco P.
[1]
;
Corvo, Marta C.
[2]
;
Cabrita, Eurico J.
[3]
;
Dupont, Jairton
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Fed Rio Grande do Sul, Inst Chem, Ave Bento Goncalves 9500, BR-91501970 Porto Alegre, RS - Brazil
[2] UNL, Dept Ciencia Mat, I3N CENIMAT, Fac Ciencias & Tecnol, P-2829516 Caparica - Portugal
[3] UNL, Dept Quim, UCIBIO REQUIMTE, Fac Ciencias & Tecnol, P-2829516 Caparica - Portugal
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | CHEMSUSCHEM; v. 10, n. 24, p. 4927-4933, DEC 22 2017. |
| Web of Science Citations: | 13 |
| Abstract | |
Confined water in aqueous solutions of imidazolium-based ionic liquids (ILs) associated with acetate and imidazolate anions react reversibly with CO2 to yield bicarbonate. Three types of CO2 sorption in these ``IL aqueous solutions{''} were observed: physical, CO2-imidazolium adduct generation, and bicarbonate formation (up to 1.9mol(bicarbonate) mol(-1) of IL), resulting in a 10:1 (molar ratio) total absorption of CO2 relative to imidazolate anions in the presence of water 1:1000 (IL/water). These sorption values are higher than the classical alkanol amines or even alkaline aqueous solutions under similar experimental conditions. (AU) | |
| FAPESP's process: | 15/08541-6 - Nuclear magnetic resonance spectroscopy: beyond molecular structure assignment |
| Grantee: | Claudio Francisco Tormena |
| Support Opportunities: | Research Projects - Thematic Grants |