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Highly efficient CO 2 capture with a metal–organic framework‐derived porous carbon impregnated with polyethyleneimine
Author(s) -
Salehi Samira,
Anbia Mansoor
Publication year - 2018
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4390
Subject(s) - carbonization , adsorption , chemistry , metal organic framework , carbon fibers , porosity , chemical engineering , porous medium , amine gas treating , flue gas , selectivity , inorganic chemistry , organic chemistry , materials science , catalysis , composite number , engineering , composite material
Global warming is considered as one of the great challenges of the twenty‐first century. Application of CO 2 capture and storage technologies to flue gas is considered to be a useful method of lessening global warning. Highly porous carbon has played an important role in tackling energy and environmental problems. We attempted to synthesize a highly porous carbon adsorbent by carbonizing a highly crystalline metal–organic framework (MOF) without any carbon precursors and focused on the adsorption of CO 2 and CH 4 gases and CO 2 /CH 4 selectivity at 298, 323 and 348 K using a volumetric apparatus. The MOF‐derived porous carbon (MDC) was prepared by direct carbonization of MOF‐199 as a template at 900 °C under nitrogen atmosphere. Amino‐impregnated MDC samples exhibited enhanced adsorption capacities by a combination of physical and chemical adsorption. Polyethyleneimine (PEI) was selected as the amine source, which was found to greatly enhance CO 2 capture when supported on the porous carbon. Novel PEI‐impregnated MDC nanocomposites were synthesized by wetness impregnation and then characterized using various methods.