Issue 20, 2022

A new boron cluster anion pillared metal organic framework with ligand inclusion and its selective acetylene capture properties

Abstract

The separation of acetylene (C2H2) from carbon dioxide (CO2) and ethylene (C2H4) is important in industry but challenging due to their similar physical properties. Herein, a novel microporous boron cluster pillared metal–organic framework BSF-10 was synthesized with ligand inclusion for efficient C2H2/CO2 and C2H2/C2H4 adsorption separation. The free dipyridyl ligands in the large pore reduce the porosity of BSF-10 but stabilize the framework. The available narrow pores without inclusion of ligands are suited for the accommodation of C2H2 by cooperative dihydrogen bonding. High C2H2 capacity and high C2H2 selectivity over CO2 and C2H4 are achieved. The practical separation ability was confirmed by the breakthroughs using C2H2/CO2 and C2H2/C2H4 gas mixtures with good recyclability. The dynamic separation factor of 2.8 for the equimolar C2H2/CO2 mixture is comparable to those of many benchmark materials.

Graphical abstract: A new boron cluster anion pillared metal organic framework with ligand inclusion and its selective acetylene capture properties

Supplementary files

Article information

Article type
Research Article
Submitted
25 Apr. 2022
Accepted
17 Jūl. 2022
First published
19 Jūl. 2022

Inorg. Chem. Front., 2022,9, 5140-5147

A new boron cluster anion pillared metal organic framework with ligand inclusion and its selective acetylene capture properties

W. Sun, Y. Jin, Y. Wu, W. Lou, Y. Yuan, S. Duttwyler, L. Wang and Y. Zhang, Inorg. Chem. Front., 2022, 9, 5140 DOI: 10.1039/D2QI00890D

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