Time-resolved in situ studies on the formation mechanism of iron oxide nanoparticles using combined fast-XANES and SAXS

Simple item page
dc.contributor.authorKabelitz, Anke
dc.contributor.authorGuilherme, Ana
dc.contributor.authorJoester, Maike
dc.contributor.authorReinholz, Uwe
dc.contributor.authorRadtke, Martin
dc.contributor.authorBienert, Ralf
dc.contributor.authorSchulz, Katrin
dc.contributor.authorSchmack, Roman
dc.contributor.authorKrähnert, Ralph
dc.contributor.authorEmmerling, Franziska
dc.date.accessioned2017-10-25T06:24:50Z
dc.date.available2017-10-25T06:24:50Z
dc.date.issued2015
dc.description.abstractThe reaction of iron chlorides with an alkaline reagent is one of the most prominent methods for the synthesis of iron oxide nanoparticles. We studied the particle formation mechanism using triethanolamine as reactant and stabilizing agent. In situ fast-X-ray absorption near edge spectroscopy and small-angle X-ray scattering provide information on the oxidation state and the structural information at the same time. In situ data were complemented by ex situ transmission electron microscopy, wide-angle X-ray scattering and Raman analysis of the formed nanoparticles. The formation of maghemite nanoparticles (gamma-Fe2O3) from ferric and ferrous chloride was investigated. Prior to the formation of these nanoparticles, the formation and conversion of intermediate phases (akaganeite, iron(II, III) hydroxides) was observed which undergoes a morphological and structural collapse. The thus formed small magnetite nanoparticles (Fe3O4) grow further and convert to maghemite with increasing reaction time.en
dc.identifier.issn1466-8033
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/6934
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-6273
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.titleTime-resolved in situ studies on the formation mechanism of iron oxide nanoparticles using combined fast-XANES and SAXSen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/c5ce01585e
dcterms.bibliographicCitation.issue44
dcterms.bibliographicCitation.journaltitleCrystEngCommen
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryde
dcterms.bibliographicCitation.originalpublisherplaceCambridgede
dcterms.bibliographicCitation.pageend8470
dcterms.bibliographicCitation.pagestart8463
dcterms.bibliographicCitation.volume17
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Technische Chemiede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Technische Chemiede
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlin

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
c5ce01585e.pdf
Size:
3.18 MB
Format:
Adobe Portable Document Format
Download

Collections

Publications