Number of the records: 1  

Hydrothermal synthesis, characterization, and magneticproperties of cobalt chromite nanoparticles

  1. 1.
    0433893 - FZÚ 2015 RIV NL eng J - Journal Article
    Zákutná, Dominika - Repko, A. - Matulková, I. - Nižňanský, Daniel - Ardu, A. - Cannas, C. - Mantlíková, Alice - Vejpravová, Jana
    Hydrothermal synthesis, characterization, and magneticproperties of cobalt chromite nanoparticles.
    Journal of Nanoparticle Research. Roč. 16, č. 2 (2014), 1-14. ISSN 1388-0764. E-ISSN 1572-896X
    R&D Projects: GA ČR GAP108/10/1250
    Institutional support: RVO:68378271 ; RVO:61388980
    Keywords : cobalt chromite * hydrothermal method * nanoparticles * size effect * multiferroic materials
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 2.184, year: 2014

    The CoCr2O4 nanoparticles were prepared by hydrothermal treatment of chromium and cobalt oleates in a mixture of solvents (water and ethanol or pentanol) at various temperatures. The samples were further annealed at the temperatures from 300 to 500 oC. The obtained nanoparticles were character ized using powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), high-resolution TEM, scanning electron microscopy, thermogravimetric analysis, Raman and infrared spectroscopy, and magnetic measurements. The particle size, ranging from 4.4 to 11.5 nm, was determined from the TEM and PXRD methods. The tendency of particles to form the aggregates with the increasing annealing temperature has been observed. The magnetic measurements revealed that the typical features of the CoCr2O4 long-range magnetic order are suppressed in the nanoparticles.
    Permanent Link: http://hdl.handle.net/11104/0238059

     
     
Number of the records: 1  

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