Alkylmethylimidazolium tricyanomethanide based supported ion gel membranes for CO2 separation
- Title
- Alkylmethylimidazolium tricyanomethanide based supported ion gel membranes for CO2 separation
- Author
- 강용수
- Keywords
- LIQUID-MEMBRANES; CO2/N-2 SEPARATION; GAS SEPARATIONS; LONG-TERM; PERFORMANCE; ENERGY; PERMEABILITY; TRANSPORT; EXCHANGE; DENSITY
- Issue Date
- 2017-11
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v. 7, no. 81, page. 51257-51263
- Abstract
- Supported ion gel membranes (SIGMs) with good mechanical stability for CO2 separation were prepared using triblock copolymers in an ionic liquid (IL). Ion gels were obtained by the addition of a small amount of poly(styrene-block-ethylene oxide-block-styrene) (SEOS) copolymer in the 1-alkyl-3-methylimidazolium tricyanomethanide family ([RMIm][TCM], with alkyl group R = ethyl (E), butyl (B) and hexyl (H)), and their properties were investigated. Mechanically stable SIGMs were prepared by self-assembly of [RMIm][TCM]/SEOS solution on the surface of the porous support, and their CO2 separation performances were measured. The ideal CO2/CH4 separation factors were 9.7, 12.3 and 11.2 for the SIGMs containing [EMIm][TCM], [BMIm][TCM] and [HMIm][TCM], respectively. Morphological structure and complex formation, as determined by wide-angle X-ray diffraction analysis and theoretical calculations, respectively, were conducted to study the permselectivity. The SIGM of [BMIm][TCM] shows a higher selectivity than that of [EMIm][TCM], since the interaction with CO2 of [EMIm][TCM] is stronger than that of [BMIm][TCM] or [HMIm][TCM] and the large intermolecular distance of [EMIm][TCM] leads to the non-selective structure for CO2 transport.
- URI
- https://pubs.rsc.org/en/content/articlelanding/2017/RA/C7RA09171K#!divAbstracthttps://repository.hanyang.ac.kr/handle/20.500.11754/116249
- ISSN
- 2046-2069
- DOI
- 10.1039/c7ra09171k
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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- Alkylmethylimidazolium tricyanomethanide based supported ion gel membranes for CO2 separation.pdfDownload
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