【摘 要】
：
A flexible metal-organic framework of 1a Cu(FMA)(4,4’-Bpe)0.5(FMA=fumarate; 4,4’-Bpe=trans-bis-(4-pyridyl)ethylene) that exhibits guest molecule-controlled ga
【机 构】
：
Department of Chemistry, University of Texas at San Antonio,
【出 处】
：
Science China(Chemistry)
论文部分内容阅读
A flexible metal-organic framework of 1a Cu(FMA)(4,4’-Bpe)0.5(FMA=fumarate; 4,4’-Bpe=trans-bis-(4-pyridyl)ethylene) that exhibits guest molecule-controlled gate-opening adsorption has been reported, in which the flexible pores can be enlarged by CO_2 molecules rather than CH_4 and N_2 under a certain gate-opening pressure. The CO_2 uptake can be sharply improved from 6.85cm~3 g~(–1) at 0.60 atm to 33.7 cm~3 g~(–1) at 1 atm due to the gate-opening effect, thus resulting in the notably enhanced adsorption selectivities for CO_2/CH_4(32:1, v/v) and CO_2/N_2(48:1, v/v) separations at room temperature.
A flexible metal-organic framework of 1a Cu (FMA) (4,4’-Bpe) 0.5 (FMA = fumarate; 4,4’-Bpe = trans-bis- gate-opening adsorption has been reported, in which the flexible pores can be enlarged by CO 2 molecules rather than CH 4 and N 2 under some certain gate-opening pressure. The CO 2 uptake can be sharply improved from 6.85 cm -3 g -1 at 0.60 atm to 33.7 cm -3 g -1 atm due to the gate-opening effect, thus resulting in the notably enhanced adsorption selectivities for CO 2 / CH 4 (32: 1, v / v) and CO 2 / N 2 (48: 1, v / v) separations at room temperature.
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