Intrinsic proton conduction in 2D sulfonated covalent organic frameworks through a post-synthetic strategy

Yuwei Zhang; Chunzhi Li; Zhaohan Liu; Yuze Yao; Md Mahmudul Hasan; Qianyu Liu; Jieqiong Wan; Zhongping Li; He Li; Yuki Nagao

doi:10.1039/d1ce00957e

Intrinsic proton conduction in 2D sulfonated covalent organic frameworks through a post-synthetic strategy

Yuwei Zhang, Chunzhi Li, Zhaohan Liu, Yuze Yao, Md Mahmudul Hasan, Qianyu Liu, Jieqiong Wan, Zhongping Li^*, He Li, Yuki Nagao

^*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

Two-dimensional covalent organic frameworks (2D COFs) have attracted much attention in proton conduction, owing to their regular pore channels and easy functionalization. However, most of the COFs required loading of proton carriers to achieve high proton conductivity. Here, we report the immobilization of flexible sulfonic acid groups on the channel walls of PyTTA-DHTA-COF (synthesized by condensation of 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetrayl)tetraaniline and 2,5-dihydroxyterephthalaldehyde)viaa simple post-synthetic modification strategy. The sulfonated COF showed intrinsic proton conductivity up to 10⁻³at 25 °C and 100% relative humidity (RH) and high conductivity up to 10⁻²S cm⁻¹at 70 °C and 100% RH without the introduction of any non-covalent acid molecules or imidazole derivatives.

Original language	English
Pages (from-to)	6234-6238
Number of pages	5
Journal	CrystEngComm
Volume	23
Issue number	36
DOIs	https://doi.org/10.1039/d1ce00957e
Publication status	Published - 2021 Sept 28
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Intrinsic proton conduction in 2D sulfonated covalent organic frameworks through a post-synthetic strategy",

abstract = "Two-dimensional covalent organic frameworks (2D COFs) have attracted much attention in proton conduction, owing to their regular pore channels and easy functionalization. However, most of the COFs required loading of proton carriers to achieve high proton conductivity. Here, we report the immobilization of flexible sulfonic acid groups on the channel walls of PyTTA-DHTA-COF (synthesized by condensation of 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetrayl)tetraaniline and 2,5-dihydroxyterephthalaldehyde)viaa simple post-synthetic modification strategy. The sulfonated COF showed intrinsic proton conductivity up to 10−3at 25 °C and 100% relative humidity (RH) and high conductivity up to 10−2S cm−1at 70 °C and 100% RH without the introduction of any non-covalent acid molecules or imidazole derivatives.",

author = "Yuwei Zhang and Chunzhi Li and Zhaohan Liu and Yuze Yao and Hasan, {Md Mahmudul} and Qianyu Liu and Jieqiong Wan and Zhongping Li and He Li and Yuki Nagao",

note = "Funding Information: Y. Z. appreciated the support from the National Natural Science Foundation of China (grant no. 21805110) and the projects of Jilin Province Department of Education (JJKH20210441KJ). H. L. appreciate the support from the National Natural Science Foundation of China (grant no. 22002162). Y. N. appreciated the support from JSPS KAKENHI (grant numbers JP21H00020 and JP21H01997) and the Murata Science Foundation. J. Wan appreciated support from the National Natural Science Foundation of China (no. 51902195). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",

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doi = "10.1039/d1ce00957e",

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T1 - Intrinsic proton conduction in 2D sulfonated covalent organic frameworks through a post-synthetic strategy

AU - Zhang, Yuwei

AU - Li, Chunzhi

AU - Liu, Zhaohan

AU - Yao, Yuze

AU - Hasan, Md Mahmudul

AU - Liu, Qianyu

AU - Wan, Jieqiong

AU - Li, Zhongping

AU - Li, He

AU - Nagao, Yuki

N1 - Funding Information: Y. Z. appreciated the support from the National Natural Science Foundation of China (grant no. 21805110) and the projects of Jilin Province Department of Education (JJKH20210441KJ). H. L. appreciate the support from the National Natural Science Foundation of China (grant no. 22002162). Y. N. appreciated the support from JSPS KAKENHI (grant numbers JP21H00020 and JP21H01997) and the Murata Science Foundation. J. Wan appreciated support from the National Natural Science Foundation of China (no. 51902195). Publisher Copyright: © The Royal Society of Chemistry 2021.

PY - 2021/9/28

Y1 - 2021/9/28

N2 - Two-dimensional covalent organic frameworks (2D COFs) have attracted much attention in proton conduction, owing to their regular pore channels and easy functionalization. However, most of the COFs required loading of proton carriers to achieve high proton conductivity. Here, we report the immobilization of flexible sulfonic acid groups on the channel walls of PyTTA-DHTA-COF (synthesized by condensation of 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetrayl)tetraaniline and 2,5-dihydroxyterephthalaldehyde)viaa simple post-synthetic modification strategy. The sulfonated COF showed intrinsic proton conductivity up to 10−3at 25 °C and 100% relative humidity (RH) and high conductivity up to 10−2S cm−1at 70 °C and 100% RH without the introduction of any non-covalent acid molecules or imidazole derivatives.

AB - Two-dimensional covalent organic frameworks (2D COFs) have attracted much attention in proton conduction, owing to their regular pore channels and easy functionalization. However, most of the COFs required loading of proton carriers to achieve high proton conductivity. Here, we report the immobilization of flexible sulfonic acid groups on the channel walls of PyTTA-DHTA-COF (synthesized by condensation of 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetrayl)tetraaniline and 2,5-dihydroxyterephthalaldehyde)viaa simple post-synthetic modification strategy. The sulfonated COF showed intrinsic proton conductivity up to 10−3at 25 °C and 100% relative humidity (RH) and high conductivity up to 10−2S cm−1at 70 °C and 100% RH without the introduction of any non-covalent acid molecules or imidazole derivatives.

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Intrinsic proton conduction in 2D sulfonated covalent organic frameworks through a post-synthetic strategy

Abstract

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