期刊
CHEMSUSCHEM
卷 5, 期 10, 页码 1912-1917出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201200355
关键词
adsorption; carbon; carbon dioxide fixation; ionic liquids; nitrogen
资金
- Division of Chemical Sciences, Geosciences, and Bio-sciences, Office of Basic Energy Sciences, U.S. Department of Energy
- U.S. Department of Energy, Advanced Research Projects Agency-ENERGY
- U.S. Department of Energy's Office of Basic Energy Sciences, Division of Materials Sciences and Engineering
- National Natural Science Foundation of China [20990224, 21076071]
- National High Technology Research and Development Program of China [2008AA062302]
- 111 Project of China [B08021]
- Fundamental Research Funds for the Central Universities of China
The search for a better carbon dioxide (CO2) capture material is attracting significant attention because of an increase in anthropogenic emissions. Porous materials are considered to be among the most promising candidates. A series of porous, nitrogen-doped carbons for CO2 capture have been developed by using high-yield carbonization reactions from task-specific ionic liquid (TSIL) precursors. Owing to strong interactions between the CO2 molecules and nitrogen-containing basic sites within the carbon framework, the porous nitrogen-doped compound derived from the carbonization of a TSIL at 500 degrees C, CN500, exhibits an exceptional CO2 absorption capacity of 193 mg of CO2 per g sorbent (4.39 mmol g(-1) at 0 degrees C and 1 bar), which demonstrates a significantly higher capacity than previously reported adsorbents. The application of TSILs as precursors for porous materials provides a new avenue for the development of improved materials for carbon capture.
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