Enhanced water stability and selective carbon dioxide adsorption of a soc-MOF with amide-functionalized linkers. (1st March 2019)

• Record Type: Journal Article
• Authors: Liu, Hui-Yan; Gao, Gui-Mei; Bao, Fen-Lin; Wei, Yu-Hui; Wang, Hai-Ying
• Is Part Of: Polyhedron. Volume 160(2019)
• Page Start: 207
• Page End: 212
• Publication Date: 2019-03-01
• Subjects: Metal–organic frameworks -- Gas adsorption -- Selective carbon dioxide adsorption -- Water adsorption -- Amide-functionalized linker; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.12.048
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: By employing oxo-centered trinuclear metal cluster and an amide-functionalized linker, an indium basedsoc -MOF has delicately constructed. The framework features integrated structural features (i.e. open metal sites, narrow and amide-functionalized channels), and thus offers good water stability, high CO2 uptake capacity as well as excellent CO2 /N2 selectivity. Abstract: Incorporating specific functionalities within the framework offers a significant opportunity to effectively improve gas capture ability and selectivity of MOFs. In this work, by employing oxo-centered trinuclear metal cluster and an amide-functionalized tetracarboxylate ligand (5-(3, 5-dicarboxybenzamido)-isophthalic acid) (H4 L), we have delicately constructed an indium basedsoc -MOF, [In3 (μ3 -O)(L)1.5 (H2 O)3 ][NO3 ]·5H2 O·EtOH·1.5DMF (1 ). Benefited from its integrated structural features (i.e. open metal sites, narrow and amide-functionalized channels), 1 demonstrates high CO2 uptake (119.0 cm 3 g −1 at 1 bar and 273 K) as well as excellent selectivity for CO2 over N2 (23.0 at 273 K). Moreover, enhanced high water stability makes1 promising material for the water adsorption.