Chemical trigger toward phase separation in the aqueous Al(III) system revealed

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dc.identifier.uri Lukić, Miodrag J. Wiedenbeck, Eduard Reiner, Holger Gebauer, Denis 2021-05-25T11:49:21Z 2021-05-25T11:49:21Z 2020
dc.identifier.citation Lukić, M.J.; Wiedenbeck, E.; Reiner, H.; Gebauer, D.: Chemical trigger toward phase separation in the aqueous Al(III) system revealed. In: Science Advances 6 (2020), Nr. 23, EABA6878. DOI:
dc.description.abstract Although Al(III) hydrolysis, condensation, and nucleation play pivotal roles in the synthesis of Al-based compounds and determine their chemical behavior, we still lack experimental evidence regarding the chemistry of nucleation from solution. Here, by combining advanced titration assays, high-resolution transmission electron microscopy (HR-TEM), and 27Al-nuclear magnetic resonance spectroscopy, we show that highly dynamic solute prenucleation clusters (PNCs) are fundamental precursors of nanosolid formation. Chemical changes from olation to oxolation bridging within PNCs rely on the formation of tetrahedral AlO4 in solution and trigger phase separation at low driving force (supersaturation). This does not include the formation of Keggin-Al13 ions, at least during the earliest stages. The PNC pathway of the formation of Al(III) (oxy)(hydr)oxides offers new possibilities toward the development of strategies for controlling the entire crystallization process. © 2020 The Authors. eng
dc.language.iso eng
dc.publisher Washington : American Association for the Advancement of Science (A A A S)
dc.relation.ispartofseries Science Advances 6 (2020), Nr. 23
dc.rights CC BY-NC 4.0 Unported
dc.subject Crystallization eng
dc.subject High resolution transmission electron microscopy eng
dc.subject Nuclear magnetic resonance spectroscopy eng
dc.subject Nucleation eng
dc.subject Phase separation eng
dc.subject Chemical behavior eng
dc.subject Chemical change eng
dc.subject Crystallization process eng
dc.subject Driving forces eng
dc.subject Experimental evidence eng
dc.subject Pre-nucleation eng
dc.subject Titration assays eng
dc.subject Aluminum compounds eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.title Chemical trigger toward phase separation in the aqueous Al(III) system revealed
dc.type Article
dc.type Text
dc.relation.essn 2375-2548
dc.bibliographicCitation.issue 23
dc.bibliographicCitation.volume 6
dc.bibliographicCitation.firstPage EABA6878
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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