[EN] METAL ORGANIC FRAMEWORKS COMPRISING A PLURALITY OF SBUS WITH DIFFERENT METAL IONS AND/OR A PLURALITY OF ORGANIC LINKING LIGANDS WITH DIFFERENT FUNCTIONAL GROUPS. [FR] RÉSEAUX MÉTAL-ORGANIQUES COMPRENANT UNE PLURALITÉ DE SBU AVEC DIFFÉRENTS IONS MÉTALLIQUES ET/OU UNE PLURALITÉ DE LIGANDS DE LIAISON ORGANIQUE AVEC DIFFÉRENTS GROUPES FONCTIONNELS
Metal–Organic Frameworks with Precisely Designed Interior for Carbon Dioxide Capture in the Presence of Water
摘要:
The selective capture of carbon dioxide in the presence of water is an outstanding challenge. Here, we show that the interior of IRMOF-74-III can be covalently functionalized with primary amine (IRMOF-74-III-CH2NH2) and used for the selective capture of CO2 in 6596 relative humidity. This study encompasses the synthesis, structural characterization, gas adsorption, and CO2 capture properties of variously functionalized IRMOF-74-III compounds (IRMOF-74-III-CH3, -NH2, -CH(2)NHBoc, -CH(2)NMeBoc, -CH2NH2, and -CH2NHMe). Cross-polarization magic angle spinning C-13 NMR spectra showed that CO2 binds chemically to IRMOF-74-III-CH2NH2 and -CH2NHMe to make carbamic species. Carbon dioxide isotherms and breakthrough experiments show that IRMOF-74-III-CH2NH2 is especially efficient at taking up CO2 (3.2 mmol of CO2 per gram at 800 Torr) and, more significantly, removing CO2 from wet nitrogen gas streams with breakthrough time of 610 +/- 10 s g(-1) and full preservation of the IRMOF structure.
METAL ORGANIC FRAMEWORKS COMPRISING A PLURALITY OF SBUS WITH DIFFERENT METAL IONS AND/OR A PLURALITY OF ORGANIC LINKING LIGANDS WITH DIFFERENT FUNCTIONAL GROUPS
申请人:The Regents of the University of California
公开号:US20170101429A1
公开(公告)日:2017-04-13
The disclosure provides for metal organic frameworks (MOFs) which comprise a plurality of SBUs comprising different metals or metal ions and/or a plurality of organic linking moieties comprising different functional groups.