One-pot synthesis and properties of Mn-doped maghemite nanoparticles using acetylacetonate precursors

A simple one-pot synthesis was utilized to prepare Mn-doped maghemite nanoparticles. A homogenized mixture of Mn- and Fe-acetylacetonates was heated in air atmosphere at 300 °C to produce Mn-doped maghemite. XRD showed only the presence of a spinel crystal structure with a linear increase of the uni...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2021-06, Vol.328 (3), p.1181-1187
Hauptverfasser: Marciuš, Marijan, Ristić, Mira, Grenèche, Jean-Marc, Musić, Svetozar, Krehula, Stjepko, Kuzmann, Ernő, Homonnay, Zoltán
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A simple one-pot synthesis was utilized to prepare Mn-doped maghemite nanoparticles. A homogenized mixture of Mn- and Fe-acetylacetonates was heated in air atmosphere at 300 °C to produce Mn-doped maghemite. XRD showed only the presence of a spinel crystal structure with a linear increase of the unit-cell volume up to 20 mol% of the Mn dopant. Possible structural changes with increased Mn doping are briefly discussed. 57 Fe Mössbauer spectra recorded at 77 K were fitted with two sextets of lines corresponding to Fe 3+ ions at A-tetrahedral and B-octahedral sites in maghemite. FE SEM images showed that Mn-doped maghemite nanoparticles were of good uniformity, with the crystallite size varying from 24 to 35 nm, as determined by XRD.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-021-07712-0