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Highly effective H2/D2 separation in a stable Cu-based metal-organic framework

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Abstract

A three-dimensional copper metal—organic framework with the rare chabazite (CHA) topology namely FJI-Y11 has been constructed with flexibly carboxylic ligand 5,5′-[(1,4-phenylenebis(methylene))bis(oxy)]diisophthalic acid (H4L). FJI-Y11 exhibits high water stability with the pH range from 2 to 12 at temperature as high as 373 K. Importantly, FJI-Y11 also shows high efficiency of hydrogen isotope separation using dynamic column breakthrough experiments under atmospheric pressure at 77 K. Attributed to its excellent structural stability, FJI-Y11 possesses good regenerated performance and maintains high separation efficiency after three cycles of breakthrough experiments.

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Acknowledgements

This work was financially supported by the Strategic Priority Research Program of CAS (No. XDB20000000), the Key Research Program of Frontier Sciences, CAS (No. QYZDB-SSW-SLH019), and the Natural Nature Science Foundation of China (Nos. 21771177, 51603206 and 21203117).

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  1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China

    Yanan Si, Wenjing Wang & Daqiang Yuan

  2. Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, China

    Xiang He, Jie Jiang & Zhiming Duan

  3. University of the Chinese Academy of Sciences, Beijing, 100049, China

    Yanan Si

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Si, Y., He, X., Jiang, J. et al. Highly effective H2/D2 separation in a stable Cu-based metal-organic framework. Nano Res. 14, 518–525 (2021). https://doi.org/10.1007/s12274-019-2571-9

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