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A new mfj-type metal–organic framework constructed from a methoxyl derived V-shaped ligand and its H₂, CO₂ and CH₄ adsorption properties

Author:
Du, Liting, Lu, Zhiyong, Xu, Li, Zhang, Jinchi
Source:
RSC advances 2017 v.7 no.34 pp. 21268-21272
ISSN:
2046-2069
Subject:
adsorption, carbon dioxide, coordination polymers, hydrogen, ligands, methane, moieties, porosity, porous media
Abstract:
Based on a new V-shaped tetracarboxylic ligand with a methoxyl group, a new mfj-type microporous metal–organic framework [Cu₆(MBDPB)₃(H₂O)₆]·12DMF·10H₂O (NJFU-3, NJFU for Nanjing Forestry University; H₄MBDPB for 5-methoxyl-1,3-bis(3,5-dicarboxylphenyl)-benzene) was successfully synthesized and structurally characterized. With moderately high porosity, appropriate pore aperture and unsaturated metal sites, the activated NJFU-3a exhibits high H₂ (2.56 wt% at 77 K and 1 bar) and CO₂ uptakes (15.8 wt% at 298 K and 1 bar), and a moderately high CH₄ storage capacity of 155 cm³ cm⁻³ at 35 bar and 298 K. Meanwhile, it shows a comparably high delivery amount of 135 cm³ cm⁻³ when taking 5 bar as a specific lower pressure limit and 65 bar as the upper limit.
Agid:
6415998