Spin crossover in metal–organic framework for improved separation of C2H2/CH4 at room temperature

Zheng, Yili; Yong, Jiayi; Zhu, Zuchao; Chen, Jiazhen; Song, Zhiguang; Gao, Junkuo

doi:10.1016/j.jssc.2021.122554

Cited by 6 publications

(1 citation statement)

References 50 publications

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“…The C 2 H 2 /CO 2 and C 2 H 2 /CH 4 selectivities were further increased to 9.8 and 244.3 at 273 K (see Figure 2f, as well as Figure S4 in the Supporting Information). Such selectivities are comparable to some topperforming materials, such as C 2 H 2 /CO 2 selectivity of CAU-10-NH 2 (10.8) 19 and MIL-160 (10), 44 C 2 H 2 /CH 4 selectivity of SNNU-65-Cu-Ga (120.6), 45 and FeNi-M′MOF (273.5), 46 as shown in Figures S5 and S6 in the Supporting Information. Overall, BUT-318a exhibits high separation selectivities and moderate Q st values.…”

Section: Gas Adsorption Performance Of But-318asupporting

confidence: 68%

Efficient C₂H₂ Separation from CO₂ and CH₄ within a Microporous Metal–Organic Framework of Multiple Functionalities

Zhang

Zhao

et al. 2022

Ind. Eng. Chem. Res.

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The separation of acetylene (C 2 H 2 ) from carbon dioxide (CO 2 ) and methane (CH 4 ) is of great significance, but remains challenging, because of their similar physicochemical properties, and it currently has received substantial research interest by using adsorptive separation based on metal−organic frameworks (MOFs). Herein, a new microporous Cu-MOF, [Cu(5-OH-IPA 2− )-(DPYA)(H 2 O)] (BUT-318, where 5-OH-IPA 2− = 5-hydroxyisophthalate and DPYA = 4,4′-dipyridylamine) has been synthesized successfully under solvothermal conditions, which exhibits excellent separation performance for C 2 H 2 /CO 2 and C 2 H 2 /CH 4 gas mixtures. The presence of Cu(II) open metal sites and different Lewis base sites (−OH and −NH) make the activated BUT-318 efficiently bind C 2 H 2 and exhibit high adsorption capacity under low pressure (24.52 and 9.1 cm 3 g −1 under 0.01 bar, at 273 and 298 K, respectively). The corresponding IAST (ideal adsorbed solution theory) selectivity was 9.8 and 244.3 at 273 K and 1 bar for an equimolar C 2 H 2 /CO 2 and C 2 H 2 /CH 4 mixture. The separation performance and reusability under dynamic conditions were also confirmed by column breakthrough experiments, making BUT-318a a promising candidate for the practical C 2 H 2 separation.

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Section: Gas Adsorption Performance Of But-318asupporting

confidence: 68%

Efficient C₂H₂ Separation from CO₂ and CH₄ within a Microporous Metal–Organic Framework of Multiple Functionalities

Zhang

Zhao

et al. 2022

Ind. Eng. Chem. Res.

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Metal‐Organic Framework with High Densities of Open Metal Sites for Efficient Separation of Propylene from Propane

Wang

Yong

Wang

et al. 2022

Zeitschrift anorg allge chemie

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The separation of propylene/propane (C3H6/C3H8) is a critical yet challenging process owing to their similar physical properties and molecular size. So it's urgent to explore efficient porous adsorbents to take place of the energy‐intensive consumption and high cost of traditional cryogenic distillation technologies. Here, we report a mixed metal‐organic framework (M'MOF), [Fe(pyz)Pt(CN)4] (FePt‐M'MOF, pyz=pyrazine) for selective adsorptive separation of C3H6/C3H8 at room temperature, which has multiple functional sites and optimized pore channels of about 4.0 Å. This MOF has an excellent separation performance with C3H6 uptake of 47.4 cm3/g and a high C3H6/C3H8 selectivity of 4.7 under ambient conditions. The separation performance of propylene in this material is driven by π‐π stacking and multiple intermolecular interactions between propylene molecules and the binding sites of FePt‐M'MOF. This material can be prepared at room temperature and is stable in water, providing potential applications for industrial C3H6/C3H8 separation.

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A TIFSIX pillared MOF with unprecedented zsd topology for efficient separation of acetylene from quaternary mixtures

Wang

et al. 2022

Chemical Engineering Journal

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Spin crossover in metal–organic framework for improved separation of C2H2/CH4 at room temperature

Cited by 6 publications

References 50 publications

Efficient C₂H₂ Separation from CO₂ and CH₄ within a Microporous Metal–Organic Framework of Multiple Functionalities

Efficient C₂H₂ Separation from CO₂ and CH₄ within a Microporous Metal–Organic Framework of Multiple Functionalities

Metal‐Organic Framework with High Densities of Open Metal Sites for Efficient Separation of Propylene from Propane

A TIFSIX pillared MOF with unprecedented zsd topology for efficient separation of acetylene from quaternary mixtures

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Spin crossover in metal–organic framework for improved separation of C2H2/CH4 at room temperature

Cited by 6 publications

References 50 publications

Efficient C2H2 Separation from CO2 and CH4 within a Microporous Metal–Organic Framework of Multiple Functionalities

Efficient C2H2 Separation from CO2 and CH4 within a Microporous Metal–Organic Framework of Multiple Functionalities

Metal‐Organic Framework with High Densities of Open Metal Sites for Efficient Separation of Propylene from Propane

A TIFSIX pillared MOF with unprecedented zsd topology for efficient separation of acetylene from quaternary mixtures

Contact Info

Product

Resources

About

Efficient C₂H₂ Separation from CO₂ and CH₄ within a Microporous Metal–Organic Framework of Multiple Functionalities

Efficient C₂H₂ Separation from CO₂ and CH₄ within a Microporous Metal–Organic Framework of Multiple Functionalities