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Role of the Precursor Composition in the Synthesis of Metal Ferrite Nanoparticles

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Title
Role of the Precursor Composition in the Synthesis of Metal Ferrite Nanoparticles
Author(s)
Hogeun Chang; Kim, Byung Hyo; Lim, Suk Gyu; Hayeon Baek; Jungwon Park; Taeghwan Hyeon
Publication Date
2021-04
Journal
INORGANIC CHEMISTRY, v.60, no.7, pp.4261 - 4268
Publisher
AMER CHEMICAL SOC
Abstract
Ternary oxide nanoparticles have attracted much interest because of their intriguing properties, which are not exhibited by binary oxide nanoparticles. However, the synthesis of ternary oxide nanoparticles is not trivial and requires a fundamental understanding of the complicated precursor chemistry that governs the formation mechanism. Herein, we investigate the role of the chemical composition of precursors in the formation of ternary oxide nanoparticles via a combination of mass spectrometry, electron microscopy with elemental mapping, and thermogravimetric analysis. Mn2+, Co2+, and Ni2+ ions easily form bimetallic-oxo clusters with Fe3+ ions with a composition of MFe2O(oleate)(6) (M = Mn, Co, Ni). The use of clusters as precursors leads to the successful synthesis of monodisperse metal ferrite nanoparticles (MFe2O4). On the contrary, zinc- or copper-containing complexes are formed independently from iron-oxo clusters in the precursor synthesis. The mixture of complexes without a bimetallic-oxo core yields a mixture of two different nanoparticles. This study reveals the importance of the precursor composition in the synthesis of ternary oxide nanoparticles.
URI
https://pr.ibs.re.kr/handle/8788114/9873
DOI
10.1021/acs.inorgchem.0c03567
ISSN
0020-1669
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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