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Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications

In recent decade, conjugated microporous polymers (CMPs) were treated as one of the superior porous materials for CO(2) uptake. Herein, we prepared two azo-linked CMPs namely: azo-carbazole (Azo-Cz) and azo-phenothiazine (Azo-Tz) from the reduction of the corresponding nitro monomers using sodium bo...

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Autores principales: Saber, Ahmed F., Chen, Kuan-Ying, EL-Mahdy, Ahmed F. M., Kuo, Shiao-Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540882/
http://dx.doi.org/10.1007/s10965-021-02803-8
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author Saber, Ahmed F.
Chen, Kuan-Ying
EL-Mahdy, Ahmed F. M.
Kuo, Shiao-Wei
author_facet Saber, Ahmed F.
Chen, Kuan-Ying
EL-Mahdy, Ahmed F. M.
Kuo, Shiao-Wei
author_sort Saber, Ahmed F.
collection PubMed
description In recent decade, conjugated microporous polymers (CMPs) were treated as one of the superior porous materials for CO(2) uptake. Herein, we prepared two azo-linked CMPs namely: azo-carbazole (Azo-Cz) and azo-phenothiazine (Azo-Tz) from the reduction of the corresponding nitro monomers using sodium borohydride (NaBH(4)). The obtained polymers were well characterized using many spectroscopic techniques. According to TGA and BET analyses, our CMPs owned good specific surface areas (reaching 315 m(2) g(–1)), and a significant thermal stability. It is also possessed pore sizes of 0.79 and 1.18 nm, respectively, and a reasonable char yields (max. 46 %). Based on CO(2) uptake measurements, the CO(2) adsorption capacities of these CMPs were very good: up to 40 and 94 mg g(–1) at the experiment temperatures 298 and 273 K, respectively. The great CO(2) uptake is due to high surface areas that facilitate powerful interactions with CO(2) molecules. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10965-021-02803-8.
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spelling pubmed-85408822021-10-25 Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications Saber, Ahmed F. Chen, Kuan-Ying EL-Mahdy, Ahmed F. M. Kuo, Shiao-Wei J Polym Res Original Paper In recent decade, conjugated microporous polymers (CMPs) were treated as one of the superior porous materials for CO(2) uptake. Herein, we prepared two azo-linked CMPs namely: azo-carbazole (Azo-Cz) and azo-phenothiazine (Azo-Tz) from the reduction of the corresponding nitro monomers using sodium borohydride (NaBH(4)). The obtained polymers were well characterized using many spectroscopic techniques. According to TGA and BET analyses, our CMPs owned good specific surface areas (reaching 315 m(2) g(–1)), and a significant thermal stability. It is also possessed pore sizes of 0.79 and 1.18 nm, respectively, and a reasonable char yields (max. 46 %). Based on CO(2) uptake measurements, the CO(2) adsorption capacities of these CMPs were very good: up to 40 and 94 mg g(–1) at the experiment temperatures 298 and 273 K, respectively. The great CO(2) uptake is due to high surface areas that facilitate powerful interactions with CO(2) molecules. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10965-021-02803-8. Springer Netherlands 2021-10-23 2021 /pmc/articles/PMC8540882/ http://dx.doi.org/10.1007/s10965-021-02803-8 Text en © The Polymer Society, Taipei 2021 This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.
spellingShingle Original Paper
Saber, Ahmed F.
Chen, Kuan-Ying
EL-Mahdy, Ahmed F. M.
Kuo, Shiao-Wei
Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications
title Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications
title_full Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications
title_fullStr Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications
title_full_unstemmed Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications
title_short Designed azo-linked conjugated microporous polymers for CO(2) uptake and removal applications
title_sort designed azo-linked conjugated microporous polymers for co(2) uptake and removal applications
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540882/
http://dx.doi.org/10.1007/s10965-021-02803-8
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