(14c) Functionalized Nitrogen-Doped Mesoporous Carbons From Ionic Liquids Precursors Highly Suitable for Carbon Capture

The increasing level of environmental carbon dioxide is drawing more and more attention and it’s urgent to synthesis new materials for high CO₂ capture. Ionic liquids are ideal precursors for the liquid state and neligible vapor pressure^[1], and herein we present a straightforward strategy from ionic liquidswith cross-linkable cyano group towards carbon materials with tunable adsorption and structure properties. Nitrogen doped carbons with surface area exceeding 500 m²/g and up to 4.8 mmol/g CO₂ adsorption capacity have been prepared by optimizing the structure of ionic liquid precursors  at the carbonization temperature of 800℃. Thermal gravity and differential thermal analysis were applied to analyze the formation mechanism of the carbon materials in combination with Raman spectra and ¹H NMR. Furthermore, the adsorption of the derived carbon materials were improved by supporting glycolamino acid salt, PEI, and functionalized ionic liquids^[2][3].

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[1]    Pasquale F. Fulvio, Je Seung Lee, Richard T. Mayes, Xiqing Wang, Shannon M.Mahurin and Sheng Dai. Boron and nitrogen-rich carbons from ionic liquid precursors with tailorable surface properties. Phys. Chem. Chem. Phys., 2011, 13, 13486-13491

[2]   Pierre Kuhn, Kathleen Kruger, Arne, Thomas, and Markus Antonietti. “Everything is surface”: tunable polymer organic frameworks with ultrahigh dye sorption capacity. Chem. Commun, 2008, 5815-5817

 [3]  D'Alessandro Deanna M, Smit Berend, Long Jeffrey R. Carbon Dioxide Capture: Prospects for New Materials. Angw. Chem. Edi. 2010, 35(49), 6058-6082