4.7 Article

A copper-based metal-organic framework with a suitable pore environment for effective ethylene purification

Journal

INORGANIC CHEMISTRY FRONTIERS
Volume 9, Issue 9, Pages 2104-2108

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qi00212d

Keywords

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Funding

  1. Shandong Provincial Key Research and Development Program [2020CXGC010403, 2019JZZY010513]
  2. Key Projects of New and Old Kinetic Energy Conversion [[2020]1220]

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In this study, a copper-based metal-organic framework (MOF) was synthesized to selectively adsorb acetylene over ethylene. Breakthrough experiments demonstrated that this MOF can effectively purify the acetylene/ethylene mixture, producing high-purity ethylene as the product.
Purifying ethylene from an acetylene/ethylene mixture is feasible but challenging because of their similar physical properties. Herein, we synthesized a copper-based metal-organic framework (MOF), namely complex 1, that can preferentially adsorb more C2H2 than C2H4. Breakthrough experiments show that complex 1 can purify the acetylene/ethylene mixture into high-purity ethylene (99.99%) and the productivity is 0.48 mmol g(-1). This work shows that a suitable pore environment will greatly enhance the host-guest interaction, to realize the separation of a similar mixture.

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