Abstract
The solubility of carbon dioxide in five tetraalkylphosphonium superbase ionic liquids, namely the trihexyltetradecylphoshonium phenoxide, trihexyltetradecylphoshonium benzotriazolide, trihexyltetradecylphoshonium benzimidazolide, trihexyltetradecylphoshonium 1,2,3-triazolide, and trihexyltetradecylphoshonium 1,2,4-triazolide was studied experimentally under dry and wet conditions at 22 °C and at atmospheric pressure, using a gravimetric saturation technique. The effects of anion structure and of the presence or absence of water in the solution on the carbon dioxide solubility were then deduced from the data. 1H and 13C-NMR spectroscopy and ab initio calculations were also conducted to probe the interactions in these solutions, as carbon dioxide and water can compete in the ionic liquid structure during the absorption process. Additionally, the viscosity of selected superbase ionic liquids was measured under dry and wet conditions, in the presence or absence of CO2, to evaluate their practical application in carbon dioxide capture processes. Finally, the recyclability of the trihexyltetradecylphoshonium 1,2,4-triazolide under dry and wet conditions was determined to probe the ability of selected solvents to solubilize chemically a high concentration of carbon dioxide and then release it in a low energy demand process.
Similar content being viewed by others
References
Kim, I., Svendsen, H.F.: Heat of absorption of carbon dioxide (CO2) in monoethanolamine (MEA) and 2-(aminoethyl)-ethanolamine (AEEA) solutions. Ind. Eng. Chem. Res. 46, 5803–5809 (2007)
McCann, N., Maeder, M., Attalla, M.: Simulation of enthalpy and capacity of CO2 absorption by aqueous amine systems. Ind. Eng. Chem. Res. 47, 2002–2009 (2008)
Rochelle, G.T.: Amine scrubbing for CO2 capture. Science 325, 1652–1654 (2009)
Brennecke, J.F., Gurkan, B.E.: Ionic liquids for CO2 capture and emission reduction. J. Phys. Chem. Lett. 1, 3459–3464 (2010)
Blanchard, L.A., Hancu, D., Beckman, E.J., Brennecke, J.F.: Green processing using ionic liquids and CO2. Nature 399, 28–29 (1999)
Anthony, J.L., Maginn, E.J., Brennecke, J.F.: Solution thermodynamics of imidazolium-based ionic liquids and water. J. Phys. Chem. B. 105, 10942–10949 (2001)
Anthony, J.L., Maginn, E.J., Brennecke, J.F.: Solubilities and thermodynamic properties of gases in the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate. J. Phys. Chem. B. 106, 7315–7320 (2002)
Muldoon, M.J., Aki, S.N.V.K., Anderson, J.L., Dixon, J.K., Brennecke, J.F.: Improving carbon dioxide solubility in ionic liquids. J. Phys. Chem. B. 111, 9001–9009 (2007)
Bates, E.D., Mayton, R.D., Ntai, I., Davis, J.H., Jr.: CO2 capture by a task-specific ionic liquid. J. Am. Chem. Soc. 124, 926–927 (2002)
Zhang, Y., Zhang, S., Lu, X., Zhou, Q., Fan, W., Zhang, X.: Dual amino-functionalised phosphonium ionic liquids for CO2 capture. Chem. Eur. J. 15, 3003–3011 (2009)
Gurkan, B.E., de la Fuenta, J.C., Mindrup, E.M., Ficke, L.E., Goodrich, B.F., Price, E.A., Schneider, W.F., Brennecke, J.F.: Equimolar CO2 absorption by anion-functionalized ionic liquids. J. Am. Chem. Soc. 132, 2116–2117 (2010)
Gutowski, K.E., Maginn, E.J.: Amine-functionalized task-specific ionic liquids: a mechanistic explanation for the dramatic increase in viscosity upon complexation with CO2 from molecular simulation. J. Am. Chem. Soc. 130, 14690–14704 (2008)
Zhang, J., Zhang, S., Dong, K., Zhang, Y., Shen, Y., Lv, X.: Supported absorption of CO2 by tetrabutylphosphonium amino acid ionic liquids. Chem. Eur. J. 12, 4021–4026 (2006)
Goodrich, B.F., de la Fuente, J.C., Gurkan, B.E., Zadigian, D.J., Price, E.A., Huang, Y., Brennecke, J.F.: Experimental measurements of amine-functionalized anion-tethered ionic liquids with carbon dioxide. Ind. Eng. Chem. Res. 50, 111–118 (2011)
Goodrich, B.F., de la Fuente, J.C., Gurkan, B.E., Lopez, Z.K., Price, E.A., Huang, Y., Brennecke, J.F.: Effect of water and temperature on absorption of CO2 by amine-functionalized anion-tethered ionic liquids. J. Phys. Chem. B. 115, 9140–9150 (2011)
Wang, C., Luo, H., Jiang, D.-E., Li, H., Dai, S.: Carbon dioxide capture by superbase-derived protic ionic liquids. Angew. Chem. Int. Ed. 49, 5978–5981 (2010)
Gurkan, B., Goodrich, B.F., Mindrup, E.M., Ficke, L.E., Massel, M., Seo, S., Senftle, T.P., Wu, H., Glaser, M.F., Shah, J.K., Maginn, E.J., Brennecke, J.F., Schneider, W.F.: Molecular design of high capacity, low viscosity, chemically tunable ionic liquids for CO2 capture. J. Phys. Chem. Lett. 1, 3494–3499 (2010)
Wang, C., Luo, X., Luo, H., Jiang, D.-E., Li, H., Dai, S.: Tuning the basicity of ionic liquids for equimolar CO2 capture. Angew. Chem. Int. Ed. 50, 4918–4922 (2011)
Wang, C., Luo, H., Li, H., Zhu, X., Yu, B., Dai, S.: Tuning the physicochemical properties of diverse phenolic ionic liquids for equimolar CO2 capture by the substituent on the anion. Chem. Eur. J. 18, 2153–2160 (2012)
Seo, S., Quiroz-Guzman, M., DeSilva, M.A., Lee, T.B., Huang, Y., Goodrich, B.F., Schneider, W.F., Brennecke, J.F.: Chemically tunable ionic liquids with aprotic heterocyclic anion (AHA) for CO2 capture. J. Phys. Chem. B. 118, 5740–5751 (2014)
Luo, X., Guo, Y., Ding, F., Zhao, H., Cui, G., Li, H., Wang, C.: Significant improvements in CO2 capture by pyridine-containing anion-functionalized ionic liquids through multiple-site cooperative interactions. Angew. Chem. Int. Ed. 53, 7053–7057 (2014)
Seddon, K.R., Stark, A., Torres, M.-J.: Influence of chloride, water, and organic solvents on the physical properties of ionic liquids. Pure Appl. Chem. 72, 2275–2287 (2000)
McDonald, J.L., Sykora, R.E., Hixon, P., Mirjafari, A., Davis, J.H., Jr.: Impact of water on CO2 capture by amino acid ionic liquids. Environ. Chem. Lett. 12, 201–208 (2014)
Stevanovic, S., Podgorsek, A., Padua, A.A.H., Costa Gomes, M.F.: Effect of water on the carbon dioxide absorption by 1-alkyl-3-methylimidazolium acetate ionic liquids. J. Phys. Chem. B. 116, 14416–14425 (2012)
Stevanovic, S., Podgorsek, A., Moura, L., Santini, C.C., Padua, A.A.H., Costa Gomes, M.F.: Absorption of carbon dioxide by ionic liquids with carboxylate anions. Int. J. Greenhouse Gas Control 17, 78–88 (2013)
Thompson, R.L., Shi, W., Albenze, E., Kusuma, V.A., Hopkinson, D., Damodaran, K., Lee, A.S., Kitchin, J.R., Luebke, D.R., Nulwala, H.: Probing the effect of electron donation on CO2 absorbing 1,2,3-triazolide ionic liquids. RSC Adv. 4, 12748–12755 (2014)
Frisch, M.J., Trucks, G.W., Schlegel, H.B., Scuseria, G.E., Robb, M.A., Cheeseman, J.R., Montgomery Jr, J.A., Vreven, T., Kudin, K.N., Burant, J.C., Millam, J.M., Iyengar, S.S., Tomasi, J., Barone, V., Mennucci, B., Cossi, M., Scalmani, G., Rega, N., Petersson, G.A., Nakatsuji, H., Hada, M., Ehara, M., Toyota, K., Fukuda, R., Hasegawa, J., Ishida, M., Nakajima, T., Honda, Y., Kitao, O., Nakai, H., Klene, M., Li, X., Knox, J.E., Hratchian, H.P., Cross, J.B., Bakken, V., Adamo, C., Jaramillo, J., Gomperts, R., Stratmann, R.E., Yazyev, O., Austin, A.J., Cammi, R., Pomelli, C., Ochterski, J.W., Ayala, P.Y., Morokuma, K., Voth, G.A., Salvador, P., Dannenberg, J.J., Zakrzewski, V.G., Dapprich, S., Daniels, A.D., Strain, M.C., Farkas, O., Malick, D.K., Rabuck, A.D., Raghavachari, K., Foresman, J.B., Ortiz, J.V., Cui, Q., Baboul, A.G., Clifford, S., Cioslowski, J., Stefanov, B.B., Liu, G., Liashenko, A., Piskorz, P., Komaromi, I., Martin, R.L., Fox, D.J., Keith, T., Al-Laham, M.A., Peng, C.Y., Nanayakkara, A., Challacombe, M., Gill, P.M.W., Johnson, B., Chen, W., Wong, M.W., Gonzalez, C., Pople, J.A.: Gaussian 09, Revision C 01. Gaussian Inc., Pittsburgh (2009)
Zhao, Y., Truhlar, D.G.: The M06 suite of density functionals for main group thermochemistry, thermochemical kinetics, noncovalent interactions, excited states, and transition elements: two new functionals and systematic testing of four M06-class functionals and 12 other functionals. Theor. Chem. Acc. 120, 215–241 (2008)
Ditchfield, R., Hehre, W.J., Pople, J.A.: Self-consistent molecular-orbital methods. IX. An extended Gaussian-type basis for molecular-orbital studies of organic molecules. J. Chem. Phys. 54, 724–728 (1971)
Legault, C.Y.: CYLview, 1.0b, Université de Sherbrooke (2009) (http://www.cylview.org)
Acknowledgments
This work was carried out as part of the “4CU” programme grant, aimed at sustainable conversion of carbon dioxide into fuels, led by the University of Sheffield and carried out in collaboration with the University of Manchester, Queen’s University Belfast, and University College London. The authors therefore acknowledge gratefully the Engineering and Physical Sciences Research Council (EPSRC) for supporting this work financially (Grant No. EP/K001329/1). CM acknowledges funding from the Department of Employment and Learning. J.J. would like to thank the Royal Society for supporting financially the equipment used during this work (Grant No. RG120168). Supporting data are openly available on Queen’s University Research Portal http://pure.qub.ac.uk/portal/en/datasets.
Author information
Authors and Affiliations
Corresponding authors
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Taylor, S.F.R., McCrellis, C., McStay, C. et al. CO2 Capture in Wet and Dry Superbase Ionic Liquids. J Solution Chem 44, 511–527 (2015). https://doi.org/10.1007/s10953-015-0319-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10953-015-0319-z