UM
Fabrication of iron oxide/silica core-shell nanoparticles and their magnetic characteristics
Jiang F.1; Fu Y.1; Zhu Y.3; Tang Z.3; Sheng P.3
2012-12-05
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume543Pages:43-48
AbstractMagnetic core-shell particles, each with a single iron oxide nanoparticle core, were prepared by the reverse microemulsion method. By using 1-butanol as a co-surfactant, one can effectively control the particle size ranging from 60 to 185 nm. The mechanism of incorporation of the hydrophobic nanoparticles in the center of a colloidal particle was discussed. The magnetic characteristics of the bare iron oxide nanoparticles and core-shell colloidal particles were studied by SQUID measurements. Superparamagnetic behavior has been found, with a blocking temperature of 200 and 100 K respectively. Under an external magnetic field, the as-prepared colloidal particles can assemble along the field direction to form linear structure. These give us a good chance to control the assembly of these colloidal particles by using an external field. © 2012 Elsevier B.V. All rights reserved.
KeywordCo-surfactant Core-shell nanoparticles Iron oxide Magnetic characteristics Microemulsion
DOI10.1016/j.jallcom.2012.07.079
URLView the original
Language英語
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Cited Times [WOS]:33   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Yantai University
2.Sun Yat-Sen University
3.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Jiang F.,Fu Y.,Zhu Y.,et al. Fabrication of iron oxide/silica core-shell nanoparticles and their magnetic characteristics[J]. Journal of Alloys and Compounds,2012,543:43-48.
APA Jiang F.,Fu Y.,Zhu Y.,Tang Z.,&Sheng P..(2012).Fabrication of iron oxide/silica core-shell nanoparticles and their magnetic characteristics.Journal of Alloys and Compounds,543,43-48.
MLA Jiang F.,et al."Fabrication of iron oxide/silica core-shell nanoparticles and their magnetic characteristics".Journal of Alloys and Compounds 543(2012):43-48.
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