In situ static and dynamic light scattering and scanning electron microscopy study on the crystallization of the dense zinc imidazolate framework ZIF-zni

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dc.identifier.uri http://dx.doi.org/10.15488/2175
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/2200
dc.contributor.author Hikov, Todor
dc.contributor.author Schröder, Christian A.
dc.contributor.author Cravillon, Janosch
dc.contributor.author Wiebcke, Michael
dc.contributor.author Huber, Klaus
dc.date.accessioned 2017-10-30T13:31:15Z
dc.date.available 2017-10-30T13:31:15Z
dc.date.issued 2012
dc.identifier.citation Hikov, T.; Schröder, C.A.; Cravillon, J.; Wiebcke, M.; Huber, K.: In situ static and dynamic light scattering and scanning electron microscopy study on the crystallization of the dense zinc imidazolate framework ZIF-zni. In: Physical Chemistry Chemical Physics 14 (2012), Nr. 2, S. 511-521. DOI: https://doi.org/10.1039/c1cp22855b
dc.description.abstract The kinetics and mechanism of crystallization of the dense zinc imidazolate framework with zni topology, from comparatively dilute methanol solutions containing Zn(NO3)·6H2O and imidazole with variation of the zinc-to-imidazole ratio, were followed in situ by time-resolved static and dynamic light scattering. The light scattering data revealed that metastable primary particles of about 100 nm in diameter form rapidly upon mixing the component solutions. After a lag time that is dependent on the imidazole concentration, the primary particles aggregate into secondary particles by a monomer addition mechanism with the primary particles as the monomers. Complementary scanning electron microscopy revealed that further evolution of the secondary particles is a complex process involving polycrystalline intermediates, the non-spherical morphologies of which depend on the initial zinc-to-imidazole ratio. Time and location of the first appearance of crystalline order could so far not be established. The pure-phase ZIF-zni crystals obtained after 240 min are twins. The aspect ratio of the tetragonal crystals can be controlled via the zinc-to-imidazole ratio. © 2011 The Owner Societies. eng
dc.language.iso eng
dc.publisher Cambridge : Royal Society of Chemistry
dc.relation.ispartofseries Physical Chemistry Chemical Physics 14 (2012), Nr. 2
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
dc.subject scanning electron microscopy eng
dc.subject crystallization eng
dc.subject imidazole eng
dc.subject polymers eng
dc.subject.ddc 540 | Chemie ger
dc.title In situ static and dynamic light scattering and scanning electron microscopy study on the crystallization of the dense zinc imidazolate framework ZIF-zni
dc.type article
dc.type Text
dc.relation.issn 1463-9076
dc.relation.doi https://doi.org/10.1039/c1cp22855b
dc.bibliographicCitation.issue 2
dc.bibliographicCitation.volume 14
dc.bibliographicCitation.firstPage 511
dc.bibliographicCitation.lastPage 521
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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