Intermediate thermal manipulation of polymers of intrinsic microporous (PIMs) membranes for gas separations

Shanshan He; Xu Jiang; Songwei Li; Feitian Ran; Jun Long; Lu Shao

doi:10.1002/aic.16543

Intermediate thermal manipulation of polymers of intrinsic microporous (PIMs) membranes for gas separations

Shanshan He
, Xu Jiang
, Songwei Li
, Feitian Ran
, Jun Long
, Lu Shao^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Zhengzhou University

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

85 Scopus citations

Abstract

The high fractional free volume (FFV) endowed polymers of intrinsic microporosity (PIMs) with high gas permeability but low selectivity. Herein, an intermediate temperature range was deliberately utilized to tune PIM-1 membrane microstructure in nitrogen atmosphere to enhance gas separation performance. During intermediate thermal manipulation, the synergistic effects of thermal-induced cross-linking and decomposition on PIM-1 membranes have optimized the micropores for significantly increasing membrane molecular-sieving ability with the boosted selectivity of 350 (H₂/N₂), 1,472 (H₂/CH₄), 3,774 (H₂/C₃H₈), and 197 (CO₂/CH₄) respectively, with the H₂ permeability of 234 Barrer, correspondingly, surpassing the “Robeson's Upper Bound”. The facile strategy simultaneously utilizing the thermal-induced cross-linking and decomposition, might provide a new platform to develop the high-performance membranes for highly-efficient hydrogen purification and CO₂ separations.

Original language	English
Article number	e16543
Journal	AIChE Journal
Volume	66
Issue number	10
DOIs	https://doi.org/10.1002/aic.16543
State	Published - 1 Oct 2020
Externally published	Yes

Keywords

CO separation
H purification
PIM-1
intermediate temperature treatment
membrane separation

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10.1002/aic.16543

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title = "Intermediate thermal manipulation of polymers of intrinsic microporous (PIMs) membranes for gas separations",

abstract = "The high fractional free volume (FFV) endowed polymers of intrinsic microporosity (PIMs) with high gas permeability but low selectivity. Herein, an intermediate temperature range was deliberately utilized to tune PIM-1 membrane microstructure in nitrogen atmosphere to enhance gas separation performance. During intermediate thermal manipulation, the synergistic effects of thermal-induced cross-linking and decomposition on PIM-1 membranes have optimized the micropores for significantly increasing membrane molecular-sieving ability with the boosted selectivity of 350 (H2/N2), 1,472 (H2/CH4), 3,774 (H2/C3H8), and 197 (CO2/CH4) respectively, with the H2 permeability of 234 Barrer, correspondingly, surpassing the “Robeson's Upper Bound”. The facile strategy simultaneously utilizing the thermal-induced cross-linking and decomposition, might provide a new platform to develop the high-performance membranes for highly-efficient hydrogen purification and CO2 separations.",

keywords = "CO separation, H purification, PIM-1, intermediate temperature treatment, membrane separation",

author = "Shanshan He and Xu Jiang and Songwei Li and Feitian Ran and Jun Long and Lu Shao",

note = "Publisher Copyright: {\textcopyright} 2020 American Institute of Chemical Engineers",

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doi = "10.1002/aic.16543",

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T1 - Intermediate thermal manipulation of polymers of intrinsic microporous (PIMs) membranes for gas separations

AU - He, Shanshan

AU - Jiang, Xu

AU - Li, Songwei

AU - Ran, Feitian

AU - Long, Jun

AU - Shao, Lu

PY - 2020/10/1

Y1 - 2020/10/1

N2 - The high fractional free volume (FFV) endowed polymers of intrinsic microporosity (PIMs) with high gas permeability but low selectivity. Herein, an intermediate temperature range was deliberately utilized to tune PIM-1 membrane microstructure in nitrogen atmosphere to enhance gas separation performance. During intermediate thermal manipulation, the synergistic effects of thermal-induced cross-linking and decomposition on PIM-1 membranes have optimized the micropores for significantly increasing membrane molecular-sieving ability with the boosted selectivity of 350 (H2/N2), 1,472 (H2/CH4), 3,774 (H2/C3H8), and 197 (CO2/CH4) respectively, with the H2 permeability of 234 Barrer, correspondingly, surpassing the “Robeson's Upper Bound”. The facile strategy simultaneously utilizing the thermal-induced cross-linking and decomposition, might provide a new platform to develop the high-performance membranes for highly-efficient hydrogen purification and CO2 separations.

AB - The high fractional free volume (FFV) endowed polymers of intrinsic microporosity (PIMs) with high gas permeability but low selectivity. Herein, an intermediate temperature range was deliberately utilized to tune PIM-1 membrane microstructure in nitrogen atmosphere to enhance gas separation performance. During intermediate thermal manipulation, the synergistic effects of thermal-induced cross-linking and decomposition on PIM-1 membranes have optimized the micropores for significantly increasing membrane molecular-sieving ability with the boosted selectivity of 350 (H2/N2), 1,472 (H2/CH4), 3,774 (H2/C3H8), and 197 (CO2/CH4) respectively, with the H2 permeability of 234 Barrer, correspondingly, surpassing the “Robeson's Upper Bound”. The facile strategy simultaneously utilizing the thermal-induced cross-linking and decomposition, might provide a new platform to develop the high-performance membranes for highly-efficient hydrogen purification and CO2 separations.

KW - CO separation

KW - H purification

KW - PIM-1

KW - intermediate temperature treatment

KW - membrane separation

UR - https://www.scopus.com/pages/publications/85088578963

U2 - 10.1002/aic.16543

DO - 10.1002/aic.16543

M3 - 文章

AN - SCOPUS:85088578963

SN - 0001-1541

VL - 66

JO - AIChE Journal

JF - AIChE Journal

IS - 10

M1 - e16543

ER -

Intermediate thermal manipulation of polymers of intrinsic microporous (PIMs) membranes for gas separations

Abstract

Keywords

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