dc.identifier.uri |
http://dx.doi.org/10.15488/2175 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/2200 |
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dc.contributor.author |
Hikov, Todor
|
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dc.contributor.author |
Schröder, Christian A.
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|
dc.contributor.author |
Cravillon, Janosch
|
|
dc.contributor.author |
Wiebcke, Michael
|
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dc.contributor.author |
Huber, Klaus
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dc.date.accessioned |
2017-10-30T13:31:15Z |
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dc.date.available |
2017-10-30T13:31:15Z |
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dc.date.issued |
2012 |
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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 |
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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 |
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dc.publisher |
Cambridge : Royal Society of Chemistry |
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dc.relation.ispartofseries |
Physical Chemistry Chemical Physics 14 (2012), Nr. 2 |
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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. |
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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 |
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dc.type |
Article |
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dc.type |
Text |
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dc.relation.issn |
1463-9076 |
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dc.relation.doi |
https://doi.org/10.1039/c1cp22855b |
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dc.bibliographicCitation.issue |
2 |
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dc.bibliographicCitation.volume |
14 |
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dc.bibliographicCitation.firstPage |
511 |
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dc.bibliographicCitation.lastPage |
521 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|