Electronic Effect-Modulated Enhancements of Proton Conductivity in Porous Organic Polymers

Sun Young Kim; Minjung Kang; Dong Won Kang; Hyojin Kim; Jong Hyeak Choe; Hongryeol Yun; Chang Seop Hong

doi:10.1002/anie.202214301

Electronic Effect-Modulated Enhancements of Proton Conductivity in Porous Organic Polymers

Sun Young Kim
, Minjung Kang
, Dong Won Kang
, Hyojin Kim
, Jong Hyeak Choe
, Hongryeol Yun
, Chang Seop Hong^*

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

We proposed a new strategy to maximize the density of acidic groups by modulating the electronic effects of the substituents for high-performance proton conductors. The conductivity of the sulfonated 1-MeL40-S with methyl group corresponds to 2.29×10⁻¹ S cm⁻¹ at 80 °C and 90 % relative humidity, remarkably an 22100-fold enhancement over the nonsulfonated 1-MeL40. 1-MeL40-S maintains long-term conductivity for one month. We confirm that this synthetic method is generalized to the extended version POPs, 2-MeL40-S and 3-MeL40-S. In particular, the conductivities of the POPs compete with those of top-level porous organic conductors. Moreover, the activation energy of the POPs is lower than that of the top-performing materials. This study demonstrates that systematic alteration of the electronic effects of substituents is a useful route to improve the conductivity and long-term durability of proton-conducting materials.

Original language	English
Article number	e202214301
Journal	Angewandte Chemie - International Edition
Volume	62
Issue number	2
DOIs	https://doi.org/10.1002/anie.202214301
Publication status	Published - 2023 Jan 9

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF‐2021R1A2B5B03086313) and the Priority Research Centers Program (NRF‐2019R1A6A1A11044070).

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

Keywords

Electronic Effect
Long-Term Performance
Porous Organic Polymers
Proton Conduction

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/anie.202214301

Cite this

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title = "Electronic Effect-Modulated Enhancements of Proton Conductivity in Porous Organic Polymers",

abstract = "We proposed a new strategy to maximize the density of acidic groups by modulating the electronic effects of the substituents for high-performance proton conductors. The conductivity of the sulfonated 1-MeL40-S with methyl group corresponds to 2.29×10−1 S cm−1 at 80 °C and 90 \% relative humidity, remarkably an 22100-fold enhancement over the nonsulfonated 1-MeL40. 1-MeL40-S maintains long-term conductivity for one month. We confirm that this synthetic method is generalized to the extended version POPs, 2-MeL40-S and 3-MeL40-S. In particular, the conductivities of the POPs compete with those of top-level porous organic conductors. Moreover, the activation energy of the POPs is lower than that of the top-performing materials. This study demonstrates that systematic alteration of the electronic effects of substituents is a useful route to improve the conductivity and long-term durability of proton-conducting materials.",

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note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF‐2021R1A2B5B03086313) and the Priority Research Centers Program (NRF‐2019R1A6A1A11044070). Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",

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AU - Kim, Sun Young

AU - Kang, Minjung

AU - Kang, Dong Won

AU - Kim, Hyojin

AU - Choe, Jong Hyeak

AU - Yun, Hongryeol

AU - Hong, Chang Seop

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF‐2021R1A2B5B03086313) and the Priority Research Centers Program (NRF‐2019R1A6A1A11044070). Publisher Copyright: © 2022 Wiley-VCH GmbH.

PY - 2023/1/9

Y1 - 2023/1/9

N2 - We proposed a new strategy to maximize the density of acidic groups by modulating the electronic effects of the substituents for high-performance proton conductors. The conductivity of the sulfonated 1-MeL40-S with methyl group corresponds to 2.29×10−1 S cm−1 at 80 °C and 90 % relative humidity, remarkably an 22100-fold enhancement over the nonsulfonated 1-MeL40. 1-MeL40-S maintains long-term conductivity for one month. We confirm that this synthetic method is generalized to the extended version POPs, 2-MeL40-S and 3-MeL40-S. In particular, the conductivities of the POPs compete with those of top-level porous organic conductors. Moreover, the activation energy of the POPs is lower than that of the top-performing materials. This study demonstrates that systematic alteration of the electronic effects of substituents is a useful route to improve the conductivity and long-term durability of proton-conducting materials.

AB - We proposed a new strategy to maximize the density of acidic groups by modulating the electronic effects of the substituents for high-performance proton conductors. The conductivity of the sulfonated 1-MeL40-S with methyl group corresponds to 2.29×10−1 S cm−1 at 80 °C and 90 % relative humidity, remarkably an 22100-fold enhancement over the nonsulfonated 1-MeL40. 1-MeL40-S maintains long-term conductivity for one month. We confirm that this synthetic method is generalized to the extended version POPs, 2-MeL40-S and 3-MeL40-S. In particular, the conductivities of the POPs compete with those of top-level porous organic conductors. Moreover, the activation energy of the POPs is lower than that of the top-performing materials. This study demonstrates that systematic alteration of the electronic effects of substituents is a useful route to improve the conductivity and long-term durability of proton-conducting materials.

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KW - Long-Term Performance

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KW - Proton Conduction

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DO - 10.1002/anie.202214301

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JO - Angewandte Chemie - International Edition

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IS - 2

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ER -

Electronic Effect-Modulated Enhancements of Proton Conductivity in Porous Organic Polymers

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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