Tailoring the Microporosity of Polymers of Intrinsic Microporosity for Advanced Gas Separation by Atomic Layer Deposition

Xiuling Chen; Lei Wu; Huimin Yang; Yong Qin; Xiaohua Ma; Nanwen Li

doi:10.1002/anie.202016901

Tailoring the Microporosity of Polymers of Intrinsic Microporosity for Advanced Gas Separation by Atomic Layer Deposition

Xiuling Chen, Lei Wu, Huimin Yang, Yong Qin, Xiaohua Ma, Nanwen Li

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

70 Scopus citations

Abstract

Tailoring the microporosity of intrinsically microporous polymers at the atomic level is one of the biggest challenges in achieving high-performance polymeric gas separation membranes. In this study, for the first time, the Al₂O₃ atomic layer deposition (ALD) technique was used to modify the microporosity of a typical polymer of intrinsic microporosity (PIM-1) at the atomic level. PIM-1 with six ALD cycles (PIM-1-Al₂O₃-6) exhibited simultaneous high thermal, mechanical, pure- and mixed-gas separation, and anti-aging properties. The O₂/N₂, H₂/N₂, and H₂/CH₄ separation performances were adequate above the latest trade-off lines. PIM-1-Al₂O₃-6 showed CO₂ and O₂ permeabilities of 624 and 188 Barrer, combined with CO₂/CH₄ and O₂/N₂ selectivities of 56.2 and 8.8, respectively. This significantly enhanced performance was attributed to the strong size sieving effect induced by the Al₂O₃ deposition.

Original language	English
Pages (from-to)	17875-17880
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	60
Issue number	33
DOIs	https://doi.org/10.1002/anie.202016901
State	Published - 9 Aug 2021
Externally published	Yes

Keywords

AlO
PIM-1
atomic layer deposition
gas separation
membranes

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title = "Tailoring the Microporosity of Polymers of Intrinsic Microporosity for Advanced Gas Separation by Atomic Layer Deposition",

abstract = "Tailoring the microporosity of intrinsically microporous polymers at the atomic level is one of the biggest challenges in achieving high-performance polymeric gas separation membranes. In this study, for the first time, the Al2O3 atomic layer deposition (ALD) technique was used to modify the microporosity of a typical polymer of intrinsic microporosity (PIM-1) at the atomic level. PIM-1 with six ALD cycles (PIM-1-Al2O3-6) exhibited simultaneous high thermal, mechanical, pure- and mixed-gas separation, and anti-aging properties. The O2/N2, H2/N2, and H2/CH4 separation performances were adequate above the latest trade-off lines. PIM-1-Al2O3-6 showed CO2 and O2 permeabilities of 624 and 188 Barrer, combined with CO2/CH4 and O2/N2 selectivities of 56.2 and 8.8, respectively. This significantly enhanced performance was attributed to the strong size sieving effect induced by the Al2O3 deposition.",

keywords = "AlO, PIM-1, atomic layer deposition, gas separation, membranes",

author = "Xiuling Chen and Lei Wu and Huimin Yang and Yong Qin and Xiaohua Ma and Nanwen Li",

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doi = "10.1002/anie.202016901",

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T1 - Tailoring the Microporosity of Polymers of Intrinsic Microporosity for Advanced Gas Separation by Atomic Layer Deposition

AU - Chen, Xiuling

AU - Wu, Lei

AU - Yang, Huimin

AU - Qin, Yong

AU - Ma, Xiaohua

AU - Li, Nanwen

PY - 2021/8/9

Y1 - 2021/8/9

N2 - Tailoring the microporosity of intrinsically microporous polymers at the atomic level is one of the biggest challenges in achieving high-performance polymeric gas separation membranes. In this study, for the first time, the Al2O3 atomic layer deposition (ALD) technique was used to modify the microporosity of a typical polymer of intrinsic microporosity (PIM-1) at the atomic level. PIM-1 with six ALD cycles (PIM-1-Al2O3-6) exhibited simultaneous high thermal, mechanical, pure- and mixed-gas separation, and anti-aging properties. The O2/N2, H2/N2, and H2/CH4 separation performances were adequate above the latest trade-off lines. PIM-1-Al2O3-6 showed CO2 and O2 permeabilities of 624 and 188 Barrer, combined with CO2/CH4 and O2/N2 selectivities of 56.2 and 8.8, respectively. This significantly enhanced performance was attributed to the strong size sieving effect induced by the Al2O3 deposition.

AB - Tailoring the microporosity of intrinsically microporous polymers at the atomic level is one of the biggest challenges in achieving high-performance polymeric gas separation membranes. In this study, for the first time, the Al2O3 atomic layer deposition (ALD) technique was used to modify the microporosity of a typical polymer of intrinsic microporosity (PIM-1) at the atomic level. PIM-1 with six ALD cycles (PIM-1-Al2O3-6) exhibited simultaneous high thermal, mechanical, pure- and mixed-gas separation, and anti-aging properties. The O2/N2, H2/N2, and H2/CH4 separation performances were adequate above the latest trade-off lines. PIM-1-Al2O3-6 showed CO2 and O2 permeabilities of 624 and 188 Barrer, combined with CO2/CH4 and O2/N2 selectivities of 56.2 and 8.8, respectively. This significantly enhanced performance was attributed to the strong size sieving effect induced by the Al2O3 deposition.

KW - AlO

KW - PIM-1

KW - atomic layer deposition

KW - gas separation

KW - membranes

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U2 - 10.1002/anie.202016901

DO - 10.1002/anie.202016901

M3 - 文章

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AN - SCOPUS:85102346008

SN - 1433-7851

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JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 33

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Tailoring the Microporosity of Polymers of Intrinsic Microporosity for Advanced Gas Separation by Atomic Layer Deposition

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