Issue 7, 2024

A Zn(ii) pillared-layer ultramicroporous metal–organic framework with matching molecular pockets for C2H2/CO2 separation

Abstract

Similar sizes and boiling points of acetylene (C2H2) and carbon dioxide (CO2) make CO2 separation from C2H2/CO2 mixtures challenging. In this work, a pillared-layer ultramicroporous Zn-mipa-datz material featuring a C2H2-matching cavity was successfully prepared to achieve high-efficiency C2H2/CO2 separation. The separation performance of Zn-mipa-datz on C2H2/CO2 mixtures was investigated through gas adsorption isotherms and dynamic breakthrough experiments. Zn-mipa-datz possessed high C2H2 separation efficiency for C2H2/CO2 mixtures. The molecular simulation demonstrated that the strong C2H2–host interaction was achieved by the synergistic effect of C–N electrostatic interactions and C–H⋯N H bonds.

Graphical abstract: A Zn(ii) pillared-layer ultramicroporous metal–organic framework with matching molecular pockets for C2H2/CO2 separation

Supplementary files

Article information

Article type
Communication
Submitted
16 Apr. 2024
Accepted
31 Maijs 2024
First published
31 Maijs 2024

Mol. Syst. Des. Eng., 2024,9, 724-728

A Zn(II) pillared-layer ultramicroporous metal–organic framework with matching molecular pockets for C2H2/CO2 separation

R. Yang, Y. Wang, T. Zhang, Z. Xu, J. Cao and K. Chen, Mol. Syst. Des. Eng., 2024, 9, 724 DOI: 10.1039/D4ME00066H

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