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Directed Synthesis of Nanoporous Carbons from Task‐Specific Ionic Liquid Precursors for the Adsorption of CO 2
Author(s) -
Mahurin Shan M.,
Fulvio Pasquale F.,
Hillesheim Patrick C.,
Nelson Kimberly M.,
Veith Gabriel M.,
Dai Sheng
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201402338
Subject(s) - ionic liquid , adsorption , sorption , nanoporous , carbon fibers , nitrogen , chemistry , greenhouse gas , chemical engineering , selectivity , ionic bonding , inorganic chemistry , materials science , organic chemistry , catalysis , ion , composite number , engineering , composite material , ecology , biology
Postcombustion CO 2 capture has become a key component of greenhouse‐gas reduction as anthropogenic emissions continue to impact the environment. We report a one‐step synthesis of porous carbon materials using a series of task‐specific ionic liquids for the adsorption of CO 2 . By varying the structure of the ionic liquid precursor, we were able to control pore architecture and surface functional groups of the carbon materials in this one‐step synthesis process leading to adsorbents with high CO 2 sorption capacities (up to 4.067 mmol g −1 ) at 0 °C and 1 bar. Added nitrogen functional groups led to high CO 2 /N 2 adsorption‐selectivity values ranging from 20 to 37 whereas simultaneously the interaction energy was enhanced relative to carbon materials with no added nitrogen.
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