Zeolitic imidazolate framework membranes made by ligand-induced permselectivation

Xiaoli Ma; Prashant Kumar; Nitish Mittal; Alexandra Khlyustova; Prodromos Daoutidis; Andre Mkhoyan; Michael Tsapatsis

doi:10.1126/science.aat4123

Zeolitic imidazolate framework membranes made by ligand-induced permselectivation

Xiaoli Ma, Prashant Kumar, Nitish Mittal, Alexandra Khlyustova, Prodromos Daoutidis, Andre Mkhoyan, Michael Tsapatsis

Research output: Contribution to journal › Article › peer-review

306 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1008-1011
Number of pages	4
Journal	Science
Volume	361
Issue number	6406
DOIs	https://doi.org/10.1126/science.aat4123
State	Published - Sep 7 2018

Bibliographical note

Funding Information:
The authors acknowledge R. Agrawal and his group (Purdue University) for a valuable discussion. This work was supported by the Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under award DE-SC0001015. Parts of this work were carried out in the Characterization Facility, University of Minnesota and the Minnesota Nano Center, which receive partial support from the National Science Foundation through the Materials Research Science and Engineering Center and National Nanotechnology Coordinated Infrastructure programs, respectively. SEM measurements were partially performed on a Hitachi 8230 provided by NSF MRI DMR-1229263.

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© 2017 The Authors.

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Cite this

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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.",

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Zeolitic imidazolate framework membranes made by ligand-induced permselectivation

Abstract

Bibliographical note

How much support was provided by MRSEC?

Reporting period for MRSEC

PubMed: MeSH publication types

UN SDGs

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MRSEC IRG-2: Sustainable Nanocrystal Materials

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Zeolitic imidazolate framework membranes made by ligand-induced permselectivation

Abstract

Bibliographical note

How much support was provided by MRSEC?

Reporting period for MRSEC

PubMed: MeSH publication types

UN SDGs

Access

OpenUrl availability

Other files and links

Fingerprint

Projects

MRSEC IRG-2: Sustainable Nanocrystal Materials

MRSEC Program

Cite this