onr:"swepub:oai:DiVA.org:ltu-72056"
Search: onr:"swepub:oai:DiVA.org:ltu-72056" > CO2 absorption and ...
- 1 of 1
- Previous record
- Next record
- To hitlist
CO2 absorption and ion mobility in aqueous choline-based ionic liquids
-
- Filippov, Andrei, PhD, 1957- (author)
- Luleå tekniska universitet,Kemiteknik,Institute of Physics, Kazan Federal University, Russia
-
- Bhattacharyya, Shubhankar (author)
- Luleå tekniska universitet,Kemiteknik
-
- Shah, Faiz Ullah, 1981- (author)
- Luleå tekniska universitet,Kemiteknik
- (creator_code:org_t)
- Elsevier, 2019
- 2019
- English.
- In: Journal of Molecular Liquids. - : Elsevier. - 0167-7322 .- 1873-3166. ; 276, s. 748-752
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- CO2 absorption and ion mobility are investigated in a series of 50/50 wt% aqueous solutions of choline-based ionic liquids with different cations and anions: [N1,1,4,2OH][Threo], [N1,1,5,2OH][Threo], [N1,1,6,2OH][Threo], [N1,1,5,2OH][β-ala] and [N1,1,5,2OH][Tau]. The process of CO2 absorption was completed in an hour reaching maximum of absorption capacity 0.07–0.10 wt% to ionic liquid (by 0.4–0.6 molar ratios). A rapid CO2 absorption is observed by the formation of solid product as a result of reaction between CO2 molecule and the ionic liquid. Diffusion coefficients of the cation and anion in the mixture are comparable while the diffusivity of water molecules is found to be quite different from the ions. In the process of CO2 absorption, an increase in the diffusivity of ions is observed due to the precipitation of solid products and depletion of ions contents in the liquid phase of the system. 13C NMR measurements of diffusivity of CO2 enriched with 13C isotope showed that a part of the absorbed CO2 remained in the liquid phase being physically and chemically bound to ions. The ionic liquid is re-cycled by evaporating water and releasing CO2 molecules using vacuum and temperature.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- Ionic liquids
- CO2 absorption
- Nuclear magnetic resonance
- Diffusivity of ions
- Phase transformations
- Chemistry of Interfaces
- Gränsytors kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Molecular Liquids (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Filippov, Andrei ...
- Bhattacharyya, S ...
- Shah, Faiz Ullah ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- and Physical Chemist ...
- Articles in the publication
- Journal of Molec ...
- By the university
- Luleå University of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
