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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/18092

Title: Accumulation of Sulfonic Acid Groups Anchored in Covalent Organic Frameworks as an Intrinsic Proton-Conducting Electrolyte
Authors: Zhai, Lipeng
Yao, Yuze
Ma, Baiwei
Hasan, Md. Mahmudul
Han, Yuxi
Mi, Liwei
Nagao, Yuki
Li, Zhongping
Keywords: Covalent organic frameworks
proton conductivity
Issue Date: 2021-10-06
Publisher: Wiley-VCH
Magazine name: Macromolecular rapid communications
Volume: 43
Number: 1
Start page: 2100590
DOI: 10.1002/marc.202100590
Abstract: Covalent organic frameworks (COFs) are a novel class of crystalline porous polymers, which possessed high porosity, excellent stability, and regular nanochannels. Two-dimensional (2D) COFs provided 1D nanochannel to form the proton transport channels. The abovementioned features afforded a powerful potential platform for designing materials as proton transportation carriers. Herein, we incorporated sulfonic acid groups on the pore walls as proton sources for enhancing proton transport conductivity in the 1D channel. Interestingly, the sulfonic acid COFs (S-COFs) electrolytes with binder free exhibited excellent proton conductivity about 1.5 × 10^-2 S cm^-1 at 25 ℃ and 95% relative humidity (RH), which ranked the excellent performance in standard proton-conducting electrolytes. The S-COFs electrolytes kept the high proton conduction over the 24 h. The activation energy was estimated to be as low as 0.17 eV, which was much lower than most reported COFs. This research opens a new window to evolve great potential of structural design for COFs as the high proton-conducting electrolytes.
Rights: This is the peer reviewed version of the following article: Copyright (C) 2021 Wiley-VCH. Lipeng Zhai, Yuze Yao, Baiwei Ma, Md. Mahmudul Hasan, Yuxi Han, Liwei Mi, Yuki Nagao, Zhongping Li, Macromolecular rapid communications, 43(1), 2021, pp.2100590, which has been published in final form at https://doi.org/10.1002/marc.202100590. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
URI: http://hdl.handle.net/10119/18092
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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