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Title: Zeolitic imidazolate framework membranes made by ligand-induced permselectivation

Abstract

Zeolitic imidazolate framework (ZIF) membranes are emerging as a promising energy-efficient separation technology. However, their reliable and scalable manufacturing remains a challenge. We demonstrate the fabrication of ZIF nanocomposite membranes by means of an all-vapor-phase processing method based on atomic layer deposition (ALD) of ZnO in a porous support followed by ligand-vapor treatment. After ALD, the obtained nanocomposite exhibits low flux and is not selective, whereas after ligand-vapor (2-methylimidazole) treatment, it is partially transformed to ZIF and shows stable performance with high mixture separation factor for propylene over propane (an energy-intensive high-volume separation) and high propylene flux. Membrane synthesis through ligand-induced permselectivation of a nonselective and impermeable deposit is shown to be simple and highly reproducible and holds promise for scalability.

Authors:
ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ; ORCiD logo;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Gas Separations Relevant to Clean Energy Technologies (CGS); Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1541699
DOE Contract Number:  
SC0001015
Resource Type:
Journal Article
Journal Name:
Science
Additional Journal Information:
Journal Volume: 361; Journal Issue: 6406; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
Science & Technology - Other Topics

Citation Formats

Ma, Xiaoli, Kumar, Prashant, Mittal, Nitish, Khlyustova, Alexandra, Daoutidis, Prodromos, Mkhoyan, K. Andre, and Tsapatsis, Michael. Zeolitic imidazolate framework membranes made by ligand-induced permselectivation. United States: N. p., 2018. Web. doi:10.1126/science.aat4123.
Ma, Xiaoli, Kumar, Prashant, Mittal, Nitish, Khlyustova, Alexandra, Daoutidis, Prodromos, Mkhoyan, K. Andre, & Tsapatsis, Michael. Zeolitic imidazolate framework membranes made by ligand-induced permselectivation. United States. doi:10.1126/science.aat4123.
Ma, Xiaoli, Kumar, Prashant, Mittal, Nitish, Khlyustova, Alexandra, Daoutidis, Prodromos, Mkhoyan, K. Andre, and Tsapatsis, Michael. Thu . "Zeolitic imidazolate framework membranes made by ligand-induced permselectivation". United States. doi:10.1126/science.aat4123.
@article{osti_1541699,
title = {Zeolitic imidazolate framework membranes made by ligand-induced permselectivation},
author = {Ma, Xiaoli and Kumar, Prashant and Mittal, Nitish and Khlyustova, Alexandra and Daoutidis, Prodromos and Mkhoyan, K. Andre and Tsapatsis, Michael},
abstractNote = {Zeolitic imidazolate framework (ZIF) membranes are emerging as a promising energy-efficient separation technology. However, their reliable and scalable manufacturing remains a challenge. We demonstrate the fabrication of ZIF nanocomposite membranes by means of an all-vapor-phase processing method based on atomic layer deposition (ALD) of ZnO in a porous support followed by ligand-vapor treatment. After ALD, the obtained nanocomposite exhibits low flux and is not selective, whereas after ligand-vapor (2-methylimidazole) treatment, it is partially transformed to ZIF and shows stable performance with high mixture separation factor for propylene over propane (an energy-intensive high-volume separation) and high propylene flux. Membrane synthesis through ligand-induced permselectivation of a nonselective and impermeable deposit is shown to be simple and highly reproducible and holds promise for scalability.},
doi = {10.1126/science.aat4123},
journal = {Science},
issn = {0036-8075},
number = 6406,
volume = 361,
place = {United States},
year = {2018},
month = {9}
}

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