Alkylamine-tethered stable metal-organic framework for CO(2) capture from flue gas.
Different alkylamine molecules were post-synthetically tethered to the unsaturated Cr(III) centers in the metal-organic framework MIL-101. The resultant metal-organic frameworks show almost no N2 adsorption with significantly enhanced CO2 capture under ambient conditions as a result of the interaction between amine groups and CO2 molecules. Given the extraordinary stability, high CO2 uptake, ultrahigh CO2 /N2 selectivity, and mild regeneration energy, MIL-101-diethylenetriamine holds exceptional promise for post-combustion CO2 capture and CO2 /N2 separation.
Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China).
Yingli
Y
Hu
Wolfgang M
WM
Verdegaal
Shu-Hong
SH
Yu
Hai-Long
HL
Jiang
D000327:Adsorption; D000588:Amines / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry* / Q000302:isolation & purification*; D008958:Models, Molecular; D008968:Molecular Conformation; D009584:Nitrogen / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*
D000588:Amines; D009942:Organometallic Compounds; D002245:Carbon Dioxide; D009584:Nitrogen
CO2/N2 separation; carbon dioxide fixation; metal-organic framework; porous materials; stability