C3H6/C3H8 Adsorption Behavior Study of Stiffened ZIF‐8 Prepared under an Electric Field. Issue 1 (29th October 2021)

• Record Type: Journal Article
• Authors: Lyu, Luxi; Wu, Houxiao; Li, Libo; Wei, Yanying; Wang, Haihui
• Other Names: Voigt Ingolf guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 94:Issue 1/2(2022)
• Page Start: 119
• Page End: 127
• Publication Date: 2021-10-29
• Subjects: Adsorption separation -- E‐field -- Framework flexibility -- Propene/propane -- ZIF‐8; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.202000259
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: Metal‐organic frameworks (MOFs) show great potential for adsorption separation. However, MOFs' flexibility may influence their adsorption behaviors. Here, for the first time we prepare ZIF‐8 powder dominated with stiffened ZIF‐8_Cm phase under an external E‐field. By comparison, we find that the flexibility of ZIF‐8 has little influence in equilibrium‐based separation behavior for C3 H6 /C3 H8 . However, the stiffened ZIF‐8 formed in E‐field presents an obviously decreased diffusion rate for C3 H8, whose C3 H6 /C3 H8 kinetic‐based separation factor is around 2.5 times higher than that of the traditional ZIF‐8 powder. Abstract : ZIF‐8 was synthesized with an external electric field. It was found that it has more stiffened phase compared to traditional ZIF‐8. Adsorption experiments showed that the flexibility of ZIF‐8 influences its gas adsorption/separation performance especially for C3 H6 /C3 H8 kinetic‐based separation.