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Solvent-free ageing reactions of rare earth element oxides: From geomimetic synthesis of new metal-organic materials towards a simple, environmentally friendly separation of scandium

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cris.lastimport.scopus2024-02-12T20:44:24Z
dc.abstract.enThe development of cleaner methodologies for the separation and processing of rare earth elements, including scandium and yttrium, is of high importance to materials science and industry. Here, we explore the use of simple, solvent-free and low-energy “accelerated ageing” reactions, inspired by geochemical processes of mineral athering and neogenesis, to convert eight rare earth (RE) element oxides, specifically Sc, Y, La, Yb, Eu, Gd, Lu and Nd, into metal–organic oxalate derivatives. The reactions can readily be directed towards the formation of topologically distinct framework structures by introduction of additional oxalate ions in the form of simple alkaline metal or ammonium salts, providing not only simple, solventfree access to novel metal–organic RE element architectures from readily accessible precursors, but also enabling a proof-of-principle of a simple route to separate scandium from at least seven other rare earth elements in a mixture of metal oxides. Specifically, the metal–organic structures obtained by ageing a mixture of scandium and other RE element oxides in presence of ammonium or sodium oxalates exhibit significant differences in aqueous solubility at boiling point of water, providing high scandium separation factors ranging from approximately 102–103, without requiring elaborate omplexation reagents, toxic extractants, acidic media, or solvents other than water.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorHuskic, Igor
dc.contributor.authorFriščić, Tomislav
dc.contributor.authorArhangelskis, Mihails
dc.date.accessioned2024-01-26T07:52:53Z
dc.date.available2024-01-26T07:52:53Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.number13
dc.description.volume22
dc.identifier.doi10.1039/D0GC00454E
dc.identifier.issn1463-9262
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/120191
dc.identifier.weblinkhttp://dx.doi.org/10.1039/D0GC00454E
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofGreen Chemistry
dc.relation.pages4364-4375
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleSolvent-free ageing reactions of rare earth element oxides: From geomimetic synthesis of new metal-organic materials towards a simple, environmentally friendly separation of scandium
dc.typeJournalArticle
dspace.entity.typePublication