Abstract
The microporous metal–organic framework [Co3O(H2O)3](ABTC)1.5·(solv)x, (H4ABTC = 3,3′,5,5′-azobenzenetetracarboxylic acid) Co-ABTC, with suitable pore space was synthesized by solvothermal reaction. Co-ABTC shows the spherical pores with a radius of 5.2 × 5.2 Å2, taking into account the van der Waals’ force. The specific surface area (BET) is 585.9 m2/g through N2 adsorption at 77 K. The activated Co-ABTCa shows the moderately high separation selectivity for C2H2/CO2 of 4.28 (298 K) at extremely low pressures by utilizing ideal adsorbed solution theory simulation.
Graphical abstract
A new microporous metal–organic framework with optimizing pore space has been realized to exhibit highly selective C2H2/CO2 gas separation property.
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Acknowledgements
The authors gratefully acknowledge financial support from National Natural Science Foundation of China (nos. 51602087 and 61072015), Zhejiang Provincial Natural Science Foundation of China (no. LY19E020010), Visiting Scholar Fund of State Key Laboratory of Silicon Materials (no. SKL2018-10), Science and Technology Innovation Project of College Student (no. 2017R407034).
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Duan, X., Zheng, W., Yu, B. et al. A microporous metal–organic framework with soc topology for adsorption and separation selectivity of C2H2/CO2. Chem. Pap. 73, 2371–2375 (2019). https://doi.org/10.1007/s11696-019-00794-x
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DOI: https://doi.org/10.1007/s11696-019-00794-x