Flogen
2019 - Sustainable Industrial Processing Summit & Exhibition
23-27 October 2019, Coral Beach Resort, Paphos, Cyprus
Abstract still accepted for a limited time
Almost 500 Abstracts Submitted from 60 Countries
Six Nobel Laureates have already confirmed their attendance: Profs. Dan Shechtman, Kurt Wüthrich, Ferid Murad, Rudy Marcus, Yuan Lee and Klaus Klitzing.
NEWS
Abstract Submission

DETAILLED PROGRAM OVERVIEW

Back
    Capture and Transformation of Carbon Dioxide Confined in Ionic Liquids
    Jairton Dupont1;
    1UFRGS, Porto Alegre, Brazil;
    PAPER: 13/Molten/Keynote (Oral)
    SCHEDULED: 11:20/Sat. 26 Oct. 2019/Ambrosia A (77/RF)



    ABSTRACT:
    Despite a growing number of climate change mitigation policies and increasing investments associated with the capture and storage technologies for CO<sub>2</sub>, the anthropogenic emissions of this gas are inexorably growing. [1] Hence, there is a growing interest in finding large-scale commercially viable end-use opportunities for CO<sub>2</sub> utilization. In the last decade, thermal, electrochemical, and photo-reduction of carbon dioxide to CO and/or hydrocarbon derivatives has grown into a blooming field of research. [2, 3] A simple combination of sunlight, aqueous solutions saturated with carbon dioxide, and appropriate photocatalysts may yield CO (reverse semi-combustion) and/or hydrocarbon derivatives (reverse combustion). [4, 5] Ionic liquids (ILs) are known to solubilize and, in some cases, to activate carbon dioxide by stabilizing radical/anionic species [6, 7] and hence, constitute an attractive material for CO<sub>2</sub> capture/reduction.[8] We will present the most recent aspects on CO<sub>2</sub> capture by ILs. This involves the formation of bicarbonate, and its hydrogenation promoted metal nanoparticles to hydrocarbons and formic acid, as well as orgono-photocatalytic and electrocatalytic reduction to carbon monoxide. The basic aspects of the multi-roles of ionic liquids in these transformations will be detailed based on experimental and theoretical evidence, particularly in IL aqueous solutions.

    References:
    [1] N. Mac Dowell, P.S. Fennell, N. Shah, G.C. Maitland, The role of CO2 capture and utilization in mitigating climate change, Nature Clim. Change, 7 (2017) 243-249.
    [2] T.A. Faunce, W. Lubitz, A.W. Rutherford, D. MacFarlane, G.F. Moore, P. Yang, D.G. Nocera, T.A. Moore, D.H. Gregory, S. Fukuzumi, K.B. Yoon, F.A. Armstrong, M.R. Wasielewski, S. Styring, Energy and environment policy case for a global project on artificial photosynthesis, Energ. Environ. Sci., 6 (2013) 695-698.
    [3] K. Li, B. Peng, T. Peng, Recent Advances in Heterogeneous Photocatalytic CO2 Conversion to Solar Fuels, ACS Catal., 6 (2016) 7485-7527.
    [4] J.L. White, M.F. Baruch, J.E. Pander Iii, Y. Hu, I.C. Fortmeyer, J.E. Park, T. Zhang, K. Liao, J. Gu, Y. Yan, T.W. Shaw, E. Abelev, A.B. Bocarsly, Light-Driven Heterogeneous Reduction of Carbon Dioxide: Photocatalysts and Photoelectrodes, Chem. Rev., 115 (2015) 12888-12935.
    [5] S.N. Habisreutinger, L. Schmidt-Mende, J.K. Stolarczyk, Photocatalytic reduction of CO2 on TiO2 and other semiconductors, Angew. Chem. Int. Ed., 52 (2013) 7372-7408.
    [6] B.A. Rosen, A. Salehi-Khojin, M.R. Thorson, W. Zhu, D.T. Whipple, P.J. Kenis, R.I. Masel, Ionic liquid-mediated selective conversion of CO(2) to CO at low overpotentials, Science, 334 (2011) 643-644.
    [7] V. Strehmel, Radicals in Ionic Liquids, ChemPhysChem, 13 (2012) 1649-1663.
    [8] S. Wang, X. Wang, Imidazolium Ionic Liquids, Imidazolylidene Heterocyclic Carbenes, and Zeolitic Imidazolate Frameworks for CO2 Capture and Photochemical Reduction, Angew. Chem. Int. Ed., 55 (2016) 2308-2320.