A highly selective polybenzimidazole-4,4′-(hexafluoroisopropylidene)bis(benzoic acid) membrane for high-temperature hydrogen separation

Sun Hee Choi; Da Hye Kim; Do Young Kim; Jun Young Han; Chang Won Yoon; Hyung Chul Ham; Jin Ho Kim; Hyoung Juhn Kim; Suk Woo Nam; Tae Hoon Lim; Jonghee Han

doi:10.1002/app.42371

A highly selective polybenzimidazole-4,4′-(hexafluoroisopropylidene)bis(benzoic acid) membrane for high-temperature hydrogen separation

Sun Hee Choi, Da Hye Kim, Do Young Kim, Jun Young Han, Chang Won Yoon, Hyung Chul Ham, Jin Ho Kim, Hyoung Juhn Kim, Suk Woo Nam, Tae Hoon Lim, Jonghee Han

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

16 Citations (Scopus)

Abstract

A polymeric gas separation membrane utilizing polybenzimidazole based on 4,4′-(hexafluoroisopropylidene)bis(benzoic acid) was prepared. The synthesized membrane has an effective permeating area of 8.3 cm² and a thickness of 30 ± 2 μm. Gas permeation properties of the membrane were determined using H₂, CO₂, CO, and N₂ at temperatures ranging from 24°C to 200°C. The PBI-HFA membranes not only exhibited excellent H₂ permeability, but it also displayed superior gas separation performance particularly for H₂/N₂ and H₂/CO₂. The permeation parameters for both permeability and selectivity [ PH2 and α(H₂/N₂); PH2 and α(H₂/CO₂)] obtained for the new material were found to be dependent on trans-membrane pressure difference as well as temperature, and were found to surpass those reported by Robeson in 2008.

Original language	English
Article number	42371
Journal	Journal of Applied Polymer Science
Volume	132
Issue number	32
DOIs	https://doi.org/10.1002/app.42371
Publication status	Published - 2015 Aug 1

Keywords

membranes
properties and characterization
separation techniques

ASJC Scopus subject areas

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.42371

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title = "A highly selective polybenzimidazole-4,4′-(hexafluoroisopropylidene)bis(benzoic acid) membrane for high-temperature hydrogen separation",

abstract = "A polymeric gas separation membrane utilizing polybenzimidazole based on 4,4′-(hexafluoroisopropylidene)bis(benzoic acid) was prepared. The synthesized membrane has an effective permeating area of 8.3 cm2 and a thickness of 30 ± 2 μm. Gas permeation properties of the membrane were determined using H2, CO2, CO, and N2 at temperatures ranging from 24°C to 200°C. The PBI-HFA membranes not only exhibited excellent H2 permeability, but it also displayed superior gas separation performance particularly for H2/N2 and H2/CO2. The permeation parameters for both permeability and selectivity [ PH2 and α(H2/N2); PH2 and α(H2/CO2)] obtained for the new material were found to be dependent on trans-membrane pressure difference as well as temperature, and were found to surpass those reported by Robeson in 2008.",

keywords = "membranes, properties and characterization, separation techniques",

author = "Choi, {Sun Hee} and Kim, {Da Hye} and Kim, {Do Young} and Han, {Jun Young} and Yoon, {Chang Won} and Ham, {Hyung Chul} and Kim, {Jin Ho} and Kim, {Hyoung Juhn} and Nam, {Suk Woo} and Lim, {Tae Hoon} and Jonghee Han",

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doi = "10.1002/app.42371",

language = "English",

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AU - Choi, Sun Hee

AU - Kim, Da Hye

AU - Kim, Do Young

AU - Han, Jun Young

AU - Yoon, Chang Won

AU - Ham, Hyung Chul

AU - Kim, Jin Ho

AU - Kim, Hyoung Juhn

AU - Nam, Suk Woo

AU - Lim, Tae Hoon

AU - Han, Jonghee

PY - 2015/8/1

Y1 - 2015/8/1

N2 - A polymeric gas separation membrane utilizing polybenzimidazole based on 4,4′-(hexafluoroisopropylidene)bis(benzoic acid) was prepared. The synthesized membrane has an effective permeating area of 8.3 cm2 and a thickness of 30 ± 2 μm. Gas permeation properties of the membrane were determined using H2, CO2, CO, and N2 at temperatures ranging from 24°C to 200°C. The PBI-HFA membranes not only exhibited excellent H2 permeability, but it also displayed superior gas separation performance particularly for H2/N2 and H2/CO2. The permeation parameters for both permeability and selectivity [ PH2 and α(H2/N2); PH2 and α(H2/CO2)] obtained for the new material were found to be dependent on trans-membrane pressure difference as well as temperature, and were found to surpass those reported by Robeson in 2008.

AB - A polymeric gas separation membrane utilizing polybenzimidazole based on 4,4′-(hexafluoroisopropylidene)bis(benzoic acid) was prepared. The synthesized membrane has an effective permeating area of 8.3 cm2 and a thickness of 30 ± 2 μm. Gas permeation properties of the membrane were determined using H2, CO2, CO, and N2 at temperatures ranging from 24°C to 200°C. The PBI-HFA membranes not only exhibited excellent H2 permeability, but it also displayed superior gas separation performance particularly for H2/N2 and H2/CO2. The permeation parameters for both permeability and selectivity [ PH2 and α(H2/N2); PH2 and α(H2/CO2)] obtained for the new material were found to be dependent on trans-membrane pressure difference as well as temperature, and were found to surpass those reported by Robeson in 2008.

KW - membranes

KW - properties and characterization

KW - separation techniques

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DO - 10.1002/app.42371

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SN - 0021-8995

VL - 132

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

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M1 - 42371

ER -

A highly selective polybenzimidazole-4,4′-(hexafluoroisopropylidene)bis(benzoic acid) membrane for high-temperature hydrogen separation

Abstract

Keywords

ASJC Scopus subject areas

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