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Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes

The incorporation of functional building blocks to construct functionalized and highly porous covalent triazine frameworks (CTFs) is essential to the emerging adsorptive-involved field. Herein, a series of amide functionalized CTFs (CTF-PO71) have been synthesized using a bottom-up strategy in which...

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Autores principales: Liu, Qianhui, Yang, Shuhao, Repich, Hlib, Zhai, Yixuan, Xu, Xiaosa, Liang, Yeru, Li, Hejun, Wang, Hongqiang, Xu, Fei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7738625/
https://www.ncbi.nlm.nih.gov/pubmed/33344414
http://dx.doi.org/10.3389/fchem.2020.584204
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author Liu, Qianhui
Yang, Shuhao
Repich, Hlib
Zhai, Yixuan
Xu, Xiaosa
Liang, Yeru
Li, Hejun
Wang, Hongqiang
Xu, Fei
author_facet Liu, Qianhui
Yang, Shuhao
Repich, Hlib
Zhai, Yixuan
Xu, Xiaosa
Liang, Yeru
Li, Hejun
Wang, Hongqiang
Xu, Fei
author_sort Liu, Qianhui
collection PubMed
description The incorporation of functional building blocks to construct functionalized and highly porous covalent triazine frameworks (CTFs) is essential to the emerging adsorptive-involved field. Herein, a series of amide functionalized CTFs (CTF-PO71) have been synthesized using a bottom-up strategy in which pigment PO71 with an amide group is employed as a monomer under ionothermal conditions with ZnCl(2) as the solvent and catalyst. The pore structure can be controlled by the amount of ZnCl(2) to monomer ratio. Benefitting from the highly porous structure and amide functionalities, CTF-PO71, as a sulfur cathode host, simultaneously demonstrates physical confinement and chemical anchoring of sulfur species, thus leading to superior capacity, cycling stability, and rate capability in comparison to unfunctionalized CTF. Meanwhile, as an adsorbent of organic dye molecules, CTF-PO71 was demonstrated to exhibit strong chemical interactions with dye molecules, facilitating adsorption kinetics and thereby promoting the adsorption rate and capacity. Furthermore, the dynamic adsorption experiments of organic dyes from solutions showed selectivity/priority of CTF-PO71s for specific dye molecules.
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spelling pubmed-77386252020-12-17 Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes Liu, Qianhui Yang, Shuhao Repich, Hlib Zhai, Yixuan Xu, Xiaosa Liang, Yeru Li, Hejun Wang, Hongqiang Xu, Fei Front Chem Chemistry The incorporation of functional building blocks to construct functionalized and highly porous covalent triazine frameworks (CTFs) is essential to the emerging adsorptive-involved field. Herein, a series of amide functionalized CTFs (CTF-PO71) have been synthesized using a bottom-up strategy in which pigment PO71 with an amide group is employed as a monomer under ionothermal conditions with ZnCl(2) as the solvent and catalyst. The pore structure can be controlled by the amount of ZnCl(2) to monomer ratio. Benefitting from the highly porous structure and amide functionalities, CTF-PO71, as a sulfur cathode host, simultaneously demonstrates physical confinement and chemical anchoring of sulfur species, thus leading to superior capacity, cycling stability, and rate capability in comparison to unfunctionalized CTF. Meanwhile, as an adsorbent of organic dye molecules, CTF-PO71 was demonstrated to exhibit strong chemical interactions with dye molecules, facilitating adsorption kinetics and thereby promoting the adsorption rate and capacity. Furthermore, the dynamic adsorption experiments of organic dyes from solutions showed selectivity/priority of CTF-PO71s for specific dye molecules. Frontiers Media S.A. 2020-12-02 /pmc/articles/PMC7738625/ /pubmed/33344414 http://dx.doi.org/10.3389/fchem.2020.584204 Text en Copyright © 2020 Liu, Yang, Repich, Zhai, Xu, Liang, Li, Wang and Xu. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Liu, Qianhui
Yang, Shuhao
Repich, Hlib
Zhai, Yixuan
Xu, Xiaosa
Liang, Yeru
Li, Hejun
Wang, Hongqiang
Xu, Fei
Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes
title Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes
title_full Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes
title_fullStr Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes
title_full_unstemmed Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes
title_short Porous Functionalized Covalent-Triazine Frameworks for Enhanced Adsorption Toward Polysulfides in Li-S Batteries and Organic Dyes
title_sort porous functionalized covalent-triazine frameworks for enhanced adsorption toward polysulfides in li-s batteries and organic dyes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7738625/
https://www.ncbi.nlm.nih.gov/pubmed/33344414
http://dx.doi.org/10.3389/fchem.2020.584204
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