(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, 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.
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