am0c04538_si_002.cif (677.7 kB)
Download fileHighly Selective Separation of C3H8 and C2H2 from CH4 within Two Water-Stable Zn5 Cluster-Based Metal–Organic Frameworks
dataset
posted on 2020-04-09, 17:04 authored by Liang Kan, Guanghua Li, Yunling LiuAdopting
the mixed ligands approach, two water-stable Zn5 cluster-based
MOFs, [Zn10(TZ)12(TADIPA)2(DMF)4]·DMF·6H2O (JLU-MOF66)
and [Zn10(TZ)12(TPTA)2(DMA)2]·2DMA·4H2O (JLU-MOF67), have been constructed
(H4TADIPA = 5,5′-(1H-1,2,4-triazole-3,5-diyl)diisophthalic
acid, H4TPTA = [1,1′:3′,1″-terphenyl]-3,3″,5,5″-tetracarboxylic
acid, and HTZ = 1H-[1,2,3]triazole). Both compounds
with [Zn5(TZ)6] clusters exhibit extraordinary
stability (pH = 2–11) and selectivity of C3H8/CH4 (308 for JLU-MOF66, and 287 for JLU-MOF67).
Compared to JLU-MOF67, JLU-MOF66 with functional groups exhibits higher
CO2 and C2H2 uptake capacity and
excellent selective separation for C2H2/CH4 (86, 1:1). Such high separation and chemical stability render
them as promising materials for industrial applications.