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dc.contributor.authorDallas, Panagiotis
dc.contributor.authorKelarakis, Antonios
dc.contributor.authorSahore, Ritu
dc.contributor.authorDiSalvo, Francis J.
dc.contributor.authorLivi, Sebastien
dc.contributor.authorGiannelis, Emmanuel P.
dc.date.accessioned2016-02-28T05:53:46Z
dc.date.available2016-02-28T05:53:46Z
dc.date.issued2013-10
dc.identifier.citationDallas P, Kelarakis A, Sahore R, DiSalvo FJ, Livi S, et al. (2013) Self-suspended permanent magnetic FePt ferrofluids. Journal of Colloid and Interface Science 407: 1–7. Available: http://dx.doi.org/10.1016/j.jcis.2013.06.024.
dc.identifier.issn0021-9797
dc.identifier.pmid23859815
dc.identifier.doi10.1016/j.jcis.2013.06.024
dc.identifier.urihttp://hdl.handle.net/10754/599583
dc.description.abstractWe present the synthesis and characterization of a new class of self-suspended ferrofluids that exhibit remanent magnetization at room temperature. Our system relies on the chemisorption of a thiol-terminated ionic liquid with very low melting point on the surface of L10 FePt nanoparticles. In contrast, all types of ferrofluids previously reported employ either volatile solvents as the suspending media or superparamagnetic iron oxide nanoparticles (that lacks permanent magnetization) as the inorganic component. The ferrofluids do not show any sign of flocculation or phase separation, despite the strong interactions between the magnetic nanoparticles due to the strong chemisorption of the ionic liquid as evidenced by Raman spectroscopy and thermal analysis. Composites with high FePt loading (40 and 70. wt%) exhibit a pseudo solid-like rheological behavior and high remanent magnetization values (10.1 and 12.8. emu/g respectively). At lower FePt loading (12. wt%) a liquid like behavior is observed and the remanent and saturation magnetization values are 3.5 and 6.2. emu/g, respectively. The magnetic and flow properties of the materials can be easily fine tuned by controlling the type and amount of FePt nanoparticles used. © 2013 Elsevier Inc.
dc.description.sponsorshipThis publication is based on work supported in part by Award No. KUS-C1-018-02 made by King Abdullah University of Science and Technology.
dc.publisherElsevier BV
dc.subjectFePt
dc.subjectFerrofluids
dc.subjectIonic liquid
dc.subjectThiol
dc.titleSelf-suspended permanent magnetic FePt ferrofluids
dc.typeArticle
dc.identifier.journalJournal of Colloid and Interface Science
dc.contributor.institutionCornell University, Ithaca, United States
dc.contributor.institutionINSA Lyon, Villeurbanne, France
kaust.grant.numberKUS-C1-018-02


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