A solid solution approach to 2D coordination polymers for CH4/CO2and CH4/C2H6gas separation: equilibrium and kinetic studies

Horike, Satoshi; Inubushi, Yasutaka; Hori, Takashi; Fukushima, Tomohiro; Kitagawa, Susumu

doi:10.1039/c1sc00591j

Cited by 147 publications

(96 citation statements)

References 42 publications

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“…Then, the partial pressure of C 2 H 6 in the column decreases rapidly, to below the gate-opening pressure, which causes the detection of 5% C 2 H 6 before the breakpoint. Similar behavior has been reported for other flexible PCP [16].…”

Section: Resultssupporting

confidence: 81%

CH4/CO2 and CH4/C2H6 gas separation using a flexible one-dimensional copper(II) porous coordination polymer

Noro

Ochi

Inubushi

et al. 2015

Microporous and Mesoporous Materials

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a b s t r a c tPorous coordination polymers (PCPs) that show a gate-type adsorption originating from structural flexibility represent a new concept for developing gas separation materials. Here, the gas adsorption and separation properties of a flexible one-dimensional (1D) copper(II) PCP, [Cu(BF 4 ) 2 (1,3-bis(4-pyridyl) propane) 2 ] n , were evaluated. The single-gas adsorption isotherms revealed different gate-opening pressures for CO 2 and C1~C4 linear alkanes, suggesting great possibility for the separation of mixtures of these gases. The gas separation properties were characterized by performing breakthrough experiments at ambient temperature using CH 4 /CO 2 and CH 4 /C 2 H 6 mixtures. The results demonstrated the practical utility of 1D PCPs in gas separation applications. Single-crystal X-ray diffraction analysis demonstrated high structural adjustability for the incorporation of a variety of guest molecules.

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Section: Resultssupporting

confidence: 81%

CH4/CO2 and CH4/C2H6 gas separation using a flexible one-dimensional copper(II) porous coordination polymer

Noro

Ochi

Inubushi

et al. 2015

Microporous and Mesoporous Materials

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“…In contrast, selective adsorption separation near room temperature using porous materials offers an energy-efficient alternative. A few MOF materials have been reported to show the potential for the selective separation of C 2 /C 1 hydrocarbons, [12][13][14][15][16][17] but the research in this respect is still somewhat limited to date.…”

Section: -11mentioning

confidence: 99%

A new MOF-5 homologue for selective separation of methane from C2 hydrocarbons at room temperature

Song

Ling

et al. 2014

APL Materials

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“…Conventional adsorbents generally exhibit Langmuir-type isotherm and monotonically decreased (versus pressure) adsorption selectivity, which is not suitable for some gas separation applications operating at high pressures 49 . Some flexible PCPs showing gate-opening phenomena and stepped isotherms may be used to solve this problem; however, the real selectivities are usually much lower than those predicted by the singlecomponent isotherms because the non-preferred guest can also enter the opened channel above the gate-opening pressure 50 .…”

Section: Preparationmentioning

confidence: 99%

Self-catalysed aerobic oxidization of organic linker in porous crystal for on-demand regulation of sorption behaviours

Liao

Zhu²,

Zhang

2015

Nat Commun

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Control over the structure and property of synthetic materials is crucial for practical applications. Here we report a facile, green and controllable solid-gas reaction strategy for on-demand modification of porous coordination polymer. Copper(I) and a methylene-bridged bis-triazolate ligand are combined to construct a porous crystal consisting of both enzyme-like O 2 -activation site and oxidizable organic substrate. Thermogravimetry, singlecrystal X-ray diffraction, electron paramagnetic resonance and infrared spectroscopy showed that the methylene groups can be oxidized by O 2 /air even at room temperature via formation of the highly active Cu(II)-O 2 ? À intermediate, to form carbonyl groups with enhance rigidity and polarity, without destroying the copper(I) triazolate framework. Since the oxidation degree or reaction progress can be easily monitored by the change of sample weight, gas sorption property of the crystal can be continuously and drastically (up to 4 orders of magnitude) tuned to give very high and even invertible selectivity for CO 2 , CH 4 and C 2 H 6 .

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A solid solution approach to 2D coordination polymers for CH₄/CO₂and CH₄/C₂H₆gas separation: equilibrium and kinetic studies

Cited by 147 publications

References 42 publications

CH4/CO2 and CH4/C2H6 gas separation using a flexible one-dimensional copper(II) porous coordination polymer

CH4/CO2 and CH4/C2H6 gas separation using a flexible one-dimensional copper(II) porous coordination polymer

A new MOF-5 homologue for selective separation of methane from C2 hydrocarbons at room temperature

Self-catalysed aerobic oxidization of organic linker in porous crystal for on-demand regulation of sorption behaviours

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