UM
Size-controlled synthesis of monodisperse superparamagnetic iron oxide nanoparticles
Zhu Y.2; Jiang F.Y.3; Chen K.2; Kang F.2; Tang Z.K.3
2011-08-25
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume509Issue:34Pages:8549-8553
AbstractMonodisperse iron oxide nanoparticles were prepared by thermal decomposition of iron carbonyl in octyl ether in the presence of oleic acid. The particle size could be tuned from 7 nm to 25 nm. The dual role of oleic acid as a surfactant and a boiling-point elevating agent was discussed. The impacts of varied reflux conditions were investigated and a new monodisperse mechanism was given. High-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) were used to study the oxidation states of iron oxide nanoparticles. The evolution of d-spacing values in HRTEM images and SAED patterns demonstrated the transition from γ-FeO to FeO with the increasing particle size. Superconducting quantum interference device (SQUID) and vibrating sample magnetometer (VSM) were used to reveal the superparamagnetic behavior of as-synthesized nanoparticles. © 2011 Elsevier B.V. All rights reserved.
KeywordMagnetic materials Nanomaterials Thermal decomposition
DOI10.1016/j.jallcom.2011.05.115
URLView the original
Language英語
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Cited Times [WOS]:41   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Yantai University
2.Tsinghua University
3.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Zhu Y.,Jiang F.Y.,Chen K.,et al. Size-controlled synthesis of monodisperse superparamagnetic iron oxide nanoparticles[J]. Journal of Alloys and Compounds,2011,509(34):8549-8553.
APA Zhu Y.,Jiang F.Y.,Chen K.,Kang F.,&Tang Z.K..(2011).Size-controlled synthesis of monodisperse superparamagnetic iron oxide nanoparticles.Journal of Alloys and Compounds,509(34),8549-8553.
MLA Zhu Y.,et al."Size-controlled synthesis of monodisperse superparamagnetic iron oxide nanoparticles".Journal of Alloys and Compounds 509.34(2011):8549-8553.
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