Rapid, Ambient Temperature Synthesis of Imine Covalent Organic Frameworks Catalyzed by Transition-Metal Nitrates

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dc.citation.firstpage3394
dc.citation.issueNumber9
dc.citation.journalTitleChemistry of Materials
dc.citation.lastpage3400
dc.citation.volumeNumber33
dc.contributor.authorZhu, Dongyang
dc.contributor.authorZhang, Zhuqing
dc.contributor.authorAlemany, Lawrence B.
dc.contributor.authorLi, Yilin
dc.contributor.authorNnorom, Njideka
dc.contributor.authorBarnes, Morgan
dc.contributor.authorKhalil, Safiya
dc.contributor.authorRahman, Muhammad M.
dc.contributor.authorAjayan, Pulickel M.
dc.contributor.authorVerduzco, Rafael
dc.date.accessioned2021-06-10T15:02:46Z
dc.date.available2021-06-10T15:02:46Z
dc.date.issued2021
dc.description.abstractCovalent organic frameworks (COFs) are crystalline, porous organic materials that are promising for applications including catalysis, energy storage, electronics, gas storage, water treatment, and drug delivery. Conventional solvothermal synthesis approaches require elevated temperatures, inert environments, and long reaction times. Herein, we show that transition-metal nitrates can catalyze the rapid synthesis of imine COFs under ambient conditions. We first tested a series of transition metals for the synthesis of a model COF and found that all transition-metal nitrates tested produced crystalline COF products even in the presence of oxygen. Fe(NO3)3·9H2O was found to produce the most crystalline product, and crystalline COFs could be produced within 10 min by optimizing the catalyst loading. Fe(NO3)3·9H2O was further tested as a catalyst for six different COF targets varying in linker lengths, substituents, and stabilities, and it effectively catalyzed the synthesis of all imine COFs tested. This catalyst was also successful in the synthesis of 2D imine COFs with different geometries, 3D COFs, and azine-linked COFs. This work demonstrates a simple, low-cost approach for the synthesis of imine COFs and will significantly lower the barrier for the development of imine COFs for applications.
dc.identifier.citationZhu, Dongyang, Zhang, Zhuqing, Alemany, Lawrence B., et al.. "Rapid, Ambient Temperature Synthesis of Imine Covalent Organic Frameworks Catalyzed by Transition-Metal Nitrates." <i>Chemistry of Materials,</i> 33, no. 9 (2021) American Chemical Society: 3394-3400. https://doi.org/10.1021/acs.chemmater.1c00737.
dc.identifier.doihttps://doi.org/10.1021/acs.chemmater.1c00737
dc.identifier.urihttps://hdl.handle.net/1911/110706
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.titleRapid, Ambient Temperature Synthesis of Imine Covalent Organic Frameworks Catalyzed by Transition-Metal Nitrates
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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