ZIF‐8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment
Abstract
Abstract Vapor phase ligand treatment (VPLT) of 2‐aminobenzimidazole (2abIm) for 2‐methylimidazole (2mIm) in ZIF‐8 membranes prepared by two different methods (LIPS: ligand induced permselectivation and RTD: rapid thermal deposition) results in a notable shift of the molecular level cut‐off to smaller molecules establishing selectivity improvements from ca. 1.8 to 5 for O 2 /N 2 ; 2.2 to 32 for CO 2 /CH 4 ; 2.4 to 24 for CO 2 /N 2 ; 4.8 to 140 for H 2 /CH 4 and 5.2 to 126 for H 2 /N 2 . Stable (based on a one‐week test) oxygen‐selective air separation performance at ambient temperature, 7 bar(a) feed, and 1 bar(a) sweep‐free permeate with a mixture separation factor of 4.5 and oxygen flux of 2.6×10 −3 mol m −2 s −1 is established. LIPS and RTD membranes exhibit fast and gradual evolution upon a 2abIm‐VPLT, respectively, reflecting differences in their thickness and microstructure. Functional reversibility is demonstrated by showing that the original permeation properties of the VPLT‐LIPS membranes can be recovered upon 2mIm‐VPLT.
- Authors:
-
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis MN 55455-0132 USA
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis MN 55455-0132 USA, Science &, Innovation Center Mitsubishi Chemical Corporation 1000 Kamoshida-cho, Aoba-ku Yokohama-shi Kanagawa 227-8502 Japan, Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
- Department of Chemical Engineering Pukyong National University 45 Yongso-ro, Nam-gu Busan 48513 South Korea
- Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis MN 55455-0132 USA, Department of Chemical and Biomolecular Engineering &, Institute for NanoBioTechnology Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA, Applied Physics Laboratory Johns Hopkins University 11100 Johns Hopkins Road Laurel MB 20723 USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1567896
- Grant/Contract Number:
- SC0001015
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Angewandte Chemie
- Additional Journal Information:
- Journal Name: Angewandte Chemie Journal Volume: 131 Journal Issue: 46; Journal ID: ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Eum, Kiwon, Hayashi, Mikio, De Mello, Matheus Dorneles, Xue, Feng, Kwon, Hyuk Taek, and Tsapatsis, Michael. ZIF‐8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment. Germany: N. p., 2019.
Web. doi:10.1002/ange.201909490.
Eum, Kiwon, Hayashi, Mikio, De Mello, Matheus Dorneles, Xue, Feng, Kwon, Hyuk Taek, & Tsapatsis, Michael. ZIF‐8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment. Germany. https://doi.org/10.1002/ange.201909490
Eum, Kiwon, Hayashi, Mikio, De Mello, Matheus Dorneles, Xue, Feng, Kwon, Hyuk Taek, and Tsapatsis, Michael. Mon .
"ZIF‐8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment". Germany. https://doi.org/10.1002/ange.201909490.
@article{osti_1567896,
title = {ZIF‐8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment},
author = {Eum, Kiwon and Hayashi, Mikio and De Mello, Matheus Dorneles and Xue, Feng and Kwon, Hyuk Taek and Tsapatsis, Michael},
abstractNote = {Abstract Vapor phase ligand treatment (VPLT) of 2‐aminobenzimidazole (2abIm) for 2‐methylimidazole (2mIm) in ZIF‐8 membranes prepared by two different methods (LIPS: ligand induced permselectivation and RTD: rapid thermal deposition) results in a notable shift of the molecular level cut‐off to smaller molecules establishing selectivity improvements from ca. 1.8 to 5 for O 2 /N 2 ; 2.2 to 32 for CO 2 /CH 4 ; 2.4 to 24 for CO 2 /N 2 ; 4.8 to 140 for H 2 /CH 4 and 5.2 to 126 for H 2 /N 2 . Stable (based on a one‐week test) oxygen‐selective air separation performance at ambient temperature, 7 bar(a) feed, and 1 bar(a) sweep‐free permeate with a mixture separation factor of 4.5 and oxygen flux of 2.6×10 −3 mol m −2 s −1 is established. LIPS and RTD membranes exhibit fast and gradual evolution upon a 2abIm‐VPLT, respectively, reflecting differences in their thickness and microstructure. Functional reversibility is demonstrated by showing that the original permeation properties of the VPLT‐LIPS membranes can be recovered upon 2mIm‐VPLT.},
doi = {10.1002/ange.201909490},
journal = {Angewandte Chemie},
number = 46,
volume = 131,
place = {Germany},
year = {Mon Sep 30 00:00:00 EDT 2019},
month = {Mon Sep 30 00:00:00 EDT 2019}
}
https://doi.org/10.1002/ange.201909490
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