@article{405ee65078ec46009665950a64ac51bf,
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.",
year = "2021",
month = sep,
day = "28",
doi = "10.1039/d1ce00957e",
language = "English",
volume = "23",
pages = "6234--6238",
journal = "CrystEngComm",
issn = "1466-8033",
publisher = "Royal Society of Chemistry",
number = "36",
}