Nanoparticles by decomposition of long chain iron carboxylates from spheres to stars and cubes

Nanoparticles by decomposition of long chain iron carboxylates : from spheres to stars and cubes

In this paper, we report the influence of reaction conditions and the chain length on the nanoparticle (NP) size and morphology for thermal decomposition of long-chain iron carboxylates such as Fe(III) oleate, palmitate, and myristate. In the majority of cases, spherical NPs are obtained; however, n...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 27(2011), 6 vom: 15. März, Seite 3044-50
1. Verfasser: Bronstein, Lyudmila M (VerfasserIn)
Weitere Verfasser: Atkinson, Jessie E, Malyutin, Andrey G, Kidwai, Faiz, Stein, Barry D, Morgan, David G, Perry, John M, Karty, Jonathan A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Carboxylic Acids Ferric Compounds
Beschreibung
Zusammenfassung:In this paper, we report the influence of reaction conditions and the chain length on the nanoparticle (NP) size and morphology for thermal decomposition of long-chain iron carboxylates such as Fe(III) oleate, palmitate, and myristate. In the majority of cases, spherical NPs are obtained; however, nonspherical morphologies were observed in some "extreme" conditions. For example, iron oxide nanostars are formed in eicosane at the Fe oleate/oleic acid ratio of 0.49 g/mL: the highest oleic acid content when NPs still form. The cubic NPs with flat facets are obtained by decomposition of iron palmitate at the lowest palmitic acid fractions, but the most monodisperse cubes are formed at the Fe palmitate/palmitic acid ratio of 1.19 g/mL. Elliptical NPs are formed from Fe myristate with the most well-defined structure. Easy transformation of these NPs from wüstite to maghemite without aggregation and loss of solubility makes them excellent candidates for biomedical applications after proper functionalization described in our preceding papers
Beschreibung:Date Completed 21.10.2014
Date Revised 04.02.2014
published: Print-Electronic
Citation Status MEDLINE
ISSN:1520-5827
DOI:10.1021/la104686d