Facile Cu(I) Loading for Adsorptive C3H6/C3H8 Separation Through Double Cu(II) Salts Incorporation Within Pores With Unsaturated Fe(II) Sites

Hyug Hee Han, Ah Reum Kim, Tea Hoon Kim, Youn Sang Bae

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3 Citations (Scopus)

Abstract

Developing an effective adsorbent for olefin/paraffin separation is a crucial and challenging issue. We have developed an olefin-selective adsorbent by loading two different Cu(II) salts (CuCl2 and Cu(CH3COO)2) within an iron-based metal–organic framework (MOF) and reduced them to Cu(I) species without a high-temperature calcination and an external reducing agent. The successful development of Cu(I)-loaded MOFs was confirmed by characterizations including scanning electron microscope/energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, powder X-ray diffraction, and Brunauer–Emmett–Teller analyses. From the comparisons between Cu(I)-loaded MOFs degassed at two different temperatures, we confirmed that the unsaturated Fe(II) sites within the iron-based MOF can enhance the stability of formed Cu(I) species and thus improve the C3H6/C3H8 selectivity. The resulted Cu(I)-loaded MOF shows large C3H6 uptake (5.15 mmol/g) and high C3H6/C3H8 selectivity (8.9) at 100 kPa and 293 K.

Original languageEnglish
Pages (from-to)471-476
Number of pages6
JournalBulletin of the Korean Chemical Society
Volume42
Issue number3
DOIs
Publication statusPublished - 2021 Mar

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF‐2019R1A2C2002313). This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020K1A4A7A02095371).

Publisher Copyright:
© 2021 Korean Chemical Society, Seoul & Wiley-VCH GmbH

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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