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Experimental Measurements of Amine-Functionalized Anion-Tethered Ionic Liquids with Carbon Dioxide
Open accessAbstract
Amine-functionalized anion-tethered ionic liquids (ILs), trihexyl(tetradecyl)phosphonium glycinate [P 66614 ][Gly], alanate [P 66614 ][Ala], sarcosinate [P 66614 ][Sar], valinate [P 66614 ][Val], leucinate [P 66614 ][Leu], and isoleucinate [P 66614 ][Ile], were synthesized and investigated as potential absorbents for CO 2 capture from postcombustion flue gas. Their physical properties, including density, viscosity, glass transition temperature, and thermal decomposition temperature, were determined. The influence of changing the anion and, more specifically, the length of the alkyl chain is discussed. Furthermore, the CO 2 absorption isotherms of [P 66614 ][Gly], [P 66614 ][Ile], [P 66614 ][Sar], and [P 66614 ][Ala] were measured using a volumetric method, and the results were modeled with two different Langmuir-type absorption models. All four ILs reached greater than 0.5 mol of CO 2 per mole of IL at CO 2 pressures of less than 1 bar. This indicates the predominance of the 1:1 mechanism, where the CO 2 reacts with one IL to form a carbamic acid, over further reaction with another IL to make a carbamate (the 1:2 mechanism). The chemical absorption of CO 2 dramatically increased the viscosity of the IL, but this can be mitigated to some extent by decreasing the number of hydrogens on the anion available for hydrogen-bonding.
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Cited by
Carbon capture and storage (CCS): the way forward
Bui, M., Adjiman, C. S., Bardow, A., Anthony, E. J., Boston, A., Brown, S., Fennell, P. S., Fuss, S., Galindo, A., Hackett, L. A., et al. (2018) · Energy & Environmental Science · doi:10.1039/c7ee02342a · Cited by 4,374
Energy applications of ionic liquids
MacFarlane, D. R., Tachikawa, N., Forsyth, M., Pringle, J. M., Howlett, P. C., Elliott, G. D., Davis, J. H., Watanabe, M., Simon, P., & Angell, C. A. (2014) · Energy Environ. Sci. · doi:10.1039/c3ee42099j · Cited by 1,745
State-of-the-Art of CO2Capture with Ionic Liquids
Ramdin, M., de Loos, T. W., & Vlugt, T. J. H. (2012) · Industrial & Engineering Chemistry Research · doi:10.1021/ie3003705 · Cited by 1,073
Zhang, S., Zhang, J., Zhang, Y., & Deng, Y. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00509 · Cited by 659
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Metadata
- Authors
- Goodrich, B. F., de la Fuente, J. C., Gurkan, B. E., Zadigian, D. J., Price, E. A., Huang, Y., & Brennecke, J. F.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-12-02
- Volume
- 50
- Issue
- 1
- Pages
- 111-118
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2331828917
- Cited by
- 305
- References
- 0
- FWCI
- 31.03
- Type
- journal article
- Language
- en
- Open access
- green
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- Goodrich, B. F., de la Fuente, J. C., Gurkan, B. E., Zadigian, D. J., Price, E. A., Huang, Y., & Brennecke, J. F. (2011). Experimental Measurements of Amine-Functionalized Anion-Tethered Ionic Liquids with Carbon Dioxide. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie101688a
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