Number of the records: 1  

A study of oleic acid-based hydrothermal preparation of CoFe.sub.2./sub.O.sub.4./sub. nanoparticles

  1. 1.
    SYSNO ASEP0367606
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleA study of oleic acid-based hydrothermal preparation of CoFe2O4 nanoparticles
    Author(s) Repko, A. (CZ)
    Nižňanský, D. (CZ)
    Poltierová Vejpravová, Jana (FZU-D) RID
    Source TitleJournal of Nanoparticle Research. - : Springer - ISSN 1388-0764
    Roč. 13, č. 10 (2011), s. 5021-5031
    Number of pages11 s.
    Languageeng - English
    CountryNL - Netherlands
    Keywordscobalt ferrite ; hydrothermal synthesis ; magnetic particles ; sperparamagnetism
    Subject RIVBM - Solid Matter Physics ; Magnetism
    CEZAV0Z10100520 - FZU-D (2005-2011)
    UT WOS000295609700059
    DOI10.1007/s11051-011-0483-z
    AnnotationNearly monodisperse, well crystalline, superparamagnetic CoFe2O4 nanoparticles with diameter of 6 nm were synthesized in oleic acid-water-pentanol system at 180 _C. Hydrothermal procedure, as an efficient and environment friendly alternative to organic decomposition methods, was investigated by variation of reaction conditions, and the particle formation mechanism was finally proposed (i.e., hydrolysis of metal oleates in organic phase, with size of the particles (5-8 nm) controlled by polarity-driven precipitation into water phase). As-prepared particles were hydrophobic due to coating by oleic acid. Further modification with dimercaptosuccinic acid led to water-dispersible particles with hydrodynamic diameter of 20 nm. Prepared particles were investigated by TEM, XRD, ICP-AES, light scattering, SQUID magnetometry, and Mossbauer spectroscopy.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2012
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.