Covalent triazine frameworks (CTFs) represent a sub-class of Porous Organic Polymers showing high chemical/thermal stability, large permanent porosity and intrinsically high N-content. All these features make them ideal candidates for Carbon Capture and Storage (CCS) applications. Herein, a novel CTF has been prepared under ionothermal conditions through cyclotrimerization of a newly designed dicyano-building block with high N/C ratio (2,6-Dicyano-1,5-naphthyridine, 4). The as prepared CTF-Napht showed remarkable carbon dioxide uptake at ambient conditions, with a loading of 3.93 mmol/g (17.3 wt. %) at 1 bar and 298 K that outperforms many benchmark CTF systems from the literature. The ad-hoc designed dicyano building unit together with a judicious choice of synthetic conditions have imparted to CTF-Napht an outstanding affinity towards CO2 confirmed by its isosteric heat of adsorption (Qst) as high as 39.6 KJ/mol that ranks among the highest reported so far for CTF-based polymers.
Design of a Novel Naphtiridine-based Covalent Triazine Framework for Carbon Dioxide Capture and Storage Applications
Giulia Tuci;Matteo Pugliesi;Andrea Rossin;Enrico Berretti;Giuliano Giambastiani
2022
Abstract
Covalent triazine frameworks (CTFs) represent a sub-class of Porous Organic Polymers showing high chemical/thermal stability, large permanent porosity and intrinsically high N-content. All these features make them ideal candidates for Carbon Capture and Storage (CCS) applications. Herein, a novel CTF has been prepared under ionothermal conditions through cyclotrimerization of a newly designed dicyano-building block with high N/C ratio (2,6-Dicyano-1,5-naphthyridine, 4). The as prepared CTF-Napht showed remarkable carbon dioxide uptake at ambient conditions, with a loading of 3.93 mmol/g (17.3 wt. %) at 1 bar and 298 K that outperforms many benchmark CTF systems from the literature. The ad-hoc designed dicyano building unit together with a judicious choice of synthetic conditions have imparted to CTF-Napht an outstanding affinity towards CO2 confirmed by its isosteric heat of adsorption (Qst) as high as 39.6 KJ/mol that ranks among the highest reported so far for CTF-based polymers.| File | Dimensione | Formato | |
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prod_472822-doc_192582.pdf
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Descrizione: Design of a Novel Naphtiridine-based Covalent Triazine Framework for Carbon Dioxide Capture and Storage Applications (postprint)
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202203560.pdf
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Descrizione: This is the peer reviewed version of the following article: G. Tuci, M. Pugliesi, A. Rossin, C. Pham-Huu, E. Berretti, G. Giambastiani, ChemistrySelect 2022, 7, e202203560, which has been published in final form at https://doi.org/10.1002/slct.202203560. 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.
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