ZIF-8 Membrane Permselectivity Modification by Manganese(II) Acetylacetonate Vapor Treatment

Mikio Hayashi; Dennis T. Lee; Matheus Dorneles de Mello; J. Anibal Boscoboinik; Michael Tsapatsis

doi:10.1002/anie.202100173

ZIF-8 Membrane Permselectivity Modification by Manganese(II) Acetylacetonate Vapor Treatment

Mikio Hayashi
, Dennis T. Lee
, Matheus Dorneles de Mello
, J. Anibal Boscoboinik
, Michael Tsapatsis

Materials Science and Engineering

Johns Hopkins University
Mitsubishi Chemical Holdings Corporation
Brookhaven National Laboratory
University of Delaware
Johns Hopkins University Applied Physics Laboratory

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

78 Scopus citations

Abstract

Vapor-phase treatment of ZIF-8 membranes with manganese(II) acetylacetonate (Mn(acac)₂) allows permselectivity tuning. Propylene/propane selectivity increases from 31 to 210 after the Mn(acac)₂ treatment at 165 °C for 30 min, while selectivities increase from 14.6 to 242 for H₂/CH₄, from 2.9 to 38 for CO₂/CH₄, from 2.4 to 29 for CO₂/N₂, and from 2.9 to 7.5 for O₂/N₂, after Mn(acac)₂ treatment at 175 °C for 30 min. Stable equimolar propylene/propane mixture selectivity of 165 at ambient temperature and 4 bar equimolar feed with a propylene flux of 8.3×10⁻⁴ mol m⁻² s⁻¹ is established. A control experiment excludes thermal treatment alone causing these changes. XPS analysis reveals the presence of Mn(acac)₂ on the outer surface of the vapor-treated ZIF-8 membranes while no other changes are detectable by X-ray diffraction and infrared spectroscopy.

Original language	English
Pages (from-to)	9316-9320
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	60
Issue number	17
DOIs	https://doi.org/10.1002/anie.202100173
State	Published - Apr 19 2021

Keywords

gas separation
metal–organic frameworks
postsynthetic treatment
vapor-phase metal–organic treatment
ZIF-8 membranes

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10.1002/anie.202100173

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@article{9259d0fc11ce4b4b9d0d547eb19685d7,

title = "ZIF-8 Membrane Permselectivity Modification by Manganese(II) Acetylacetonate Vapor Treatment",

abstract = "Vapor-phase treatment of ZIF-8 membranes with manganese(II) acetylacetonate (Mn(acac)2) allows permselectivity tuning. Propylene/propane selectivity increases from 31 to 210 after the Mn(acac)2 treatment at 165 °C for 30 min, while selectivities increase from 14.6 to 242 for H2/CH4, from 2.9 to 38 for CO2/CH4, from 2.4 to 29 for CO2/N2, and from 2.9 to 7.5 for O2/N2, after Mn(acac)2 treatment at 175 °C for 30 min. Stable equimolar propylene/propane mixture selectivity of 165 at ambient temperature and 4 bar equimolar feed with a propylene flux of 8.3×10−4 mol m−2 s−1 is established. A control experiment excludes thermal treatment alone causing these changes. XPS analysis reveals the presence of Mn(acac)2 on the outer surface of the vapor-treated ZIF-8 membranes while no other changes are detectable by X-ray diffraction and infrared spectroscopy.",

keywords = "gas separation, metal–organic frameworks, postsynthetic treatment, vapor-phase metal–organic treatment, ZIF-8 membranes",

author = "Mikio Hayashi and Lee, \{Dennis T.\} and \{de Mello\}, \{Matheus Dorneles\} and Boscoboinik, \{J. Anibal\} and Michael Tsapatsis",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

year = "2021",

month = apr,

day = "19",

doi = "10.1002/anie.202100173",

language = "English",

volume = "60",

pages = "9316--9320",

journal = "Angewandte Chemie - International Edition",

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T1 - ZIF-8 Membrane Permselectivity Modification by Manganese(II) Acetylacetonate Vapor Treatment

AU - Hayashi, Mikio

AU - Lee, Dennis T.

AU - de Mello, Matheus Dorneles

AU - Boscoboinik, J. Anibal

AU - Tsapatsis, Michael

PY - 2021/4/19

Y1 - 2021/4/19

N2 - Vapor-phase treatment of ZIF-8 membranes with manganese(II) acetylacetonate (Mn(acac)2) allows permselectivity tuning. Propylene/propane selectivity increases from 31 to 210 after the Mn(acac)2 treatment at 165 °C for 30 min, while selectivities increase from 14.6 to 242 for H2/CH4, from 2.9 to 38 for CO2/CH4, from 2.4 to 29 for CO2/N2, and from 2.9 to 7.5 for O2/N2, after Mn(acac)2 treatment at 175 °C for 30 min. Stable equimolar propylene/propane mixture selectivity of 165 at ambient temperature and 4 bar equimolar feed with a propylene flux of 8.3×10−4 mol m−2 s−1 is established. A control experiment excludes thermal treatment alone causing these changes. XPS analysis reveals the presence of Mn(acac)2 on the outer surface of the vapor-treated ZIF-8 membranes while no other changes are detectable by X-ray diffraction and infrared spectroscopy.

AB - Vapor-phase treatment of ZIF-8 membranes with manganese(II) acetylacetonate (Mn(acac)2) allows permselectivity tuning. Propylene/propane selectivity increases from 31 to 210 after the Mn(acac)2 treatment at 165 °C for 30 min, while selectivities increase from 14.6 to 242 for H2/CH4, from 2.9 to 38 for CO2/CH4, from 2.4 to 29 for CO2/N2, and from 2.9 to 7.5 for O2/N2, after Mn(acac)2 treatment at 175 °C for 30 min. Stable equimolar propylene/propane mixture selectivity of 165 at ambient temperature and 4 bar equimolar feed with a propylene flux of 8.3×10−4 mol m−2 s−1 is established. A control experiment excludes thermal treatment alone causing these changes. XPS analysis reveals the presence of Mn(acac)2 on the outer surface of the vapor-treated ZIF-8 membranes while no other changes are detectable by X-ray diffraction and infrared spectroscopy.

KW - gas separation

KW - metal–organic frameworks

KW - postsynthetic treatment

KW - vapor-phase metal–organic treatment

KW - ZIF-8 membranes

UR - https://www.scopus.com/pages/publications/85102339770

U2 - 10.1002/anie.202100173

DO - 10.1002/anie.202100173

M3 - Article

C2 - 33481308

AN - SCOPUS:85102339770

SN - 1433-7851

VL - 60

SP - 9316

EP - 9320

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 17

ER -

ZIF-8 Membrane Permselectivity Modification by Manganese(II) Acetylacetonate Vapor Treatment

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