Understanding fragility and engineering activation stability in two-dimensional covalent organic frameworks

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dc.citation.firstpage9655
dc.citation.journalTitleChemical Science
dc.citation.lastpage9667
dc.citation.volumeNumber13
dc.contributor.authorZhu, Dongyang
dc.contributor.authorZhang, Jun-Jie
dc.contributor.authorWu, Xiaowei
dc.contributor.authorYan, Qianqian
dc.contributor.authorLiu, Fangxin
dc.contributor.authorZhu, Yifan
dc.contributor.authorGao, Xiaodong
dc.contributor.authorRahman, Muhammad M.
dc.contributor.authorYakobson, Boris I.
dc.contributor.authorAjayan, Pulickel M.
dc.contributor.authorVerduzco, Rafael
dc.date.accessioned2022-09-08T14:40:02Z
dc.date.available2022-09-08T14:40:02Z
dc.date.issued2022
dc.description.abstractThe sensitivity of covalent organic frameworks (COFs) to pore collapse during activation processes is generally termed activation stability, and activation stability is important for achieving and maintaining COF crystallinity and porosity which are relevant to a variety of applications. However, current understanding of COF stability during activation is insufficient, and prior studies have focused primarily on thermal stability or on the activation stability of other porous materials, such as metal–organic frameworks (MOFs). In this work, we demonstrate and implement a versatile experimental approach to quantify activation stability of COFs and use this to establish a number of relationships between their pore size, the type of pore substituents, pore architecture, and structural robustness. Additionally, density functional theory calculations reveal the impact on both inter-and intra-layer interactions, which govern activation stability, and we demonstrate that activation stability can be systematically tuned using a multivariate synthesis approach involving mixtures of functionalized and unfunctionalized COF building blocks. Our findings provide novel fundamental insights into the activation stability of COFs and offer guidance for the design of more robust COFs.
dc.identifier.citationZhu, Dongyang, Zhang, Jun-Jie, Wu, Xiaowei, et al.. "Understanding fragility and engineering activation stability in two-dimensional covalent organic frameworks." <i>Chemical Science,</i> 13, (2022) Royal Society of Chemistry: 9655-9667. https://doi.org/10.1039/D2SC03489A.
dc.identifier.digitald2sc03489a
dc.identifier.doihttps://doi.org/10.1039/D2SC03489A
dc.identifier.urihttps://hdl.handle.net/1911/113193
dc.language.isoeng
dc.publisherRoyal Society of Chemistry
dc.rightsThis Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/
dc.titleUnderstanding fragility and engineering activation stability in two-dimensional covalent organic frameworks
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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