Size-induced effects in wet-chemically synthesized CoPt 3 nanoparticles

S. Mourdikoudis, K. Simeonidis, K. Gloystein, M. Angelakeris, C. D. Samara, F. Tuna, O. Kalogirou

    Research output: Contribution to journalArticlepeer-review


    CoPt 3 alloy spherical nanoparticles with sizes tuned between 3-7 nm were produced by the simultaneous thermal treatment of proper platinum and cobalt precursors in the presence of surfactants. The final size and composition of the particles are determined by the precursors' ratio, the chemical behavior of Co precursors and the stabilizing efficiency of the surfactants. By employing higher reaction temperatures (∼350 °) better alloying is achieved leading to enhancement of macroscopic magnetic features and decrease of the superparamagnetic limit down to 7 nm. © 2010 American Scientific Publishers.
    Original languageEnglish
    Pages (from-to)6087-6092
    Number of pages5
    JournalJournal of Nanoscience and Nanotechnology
    Issue number9
    Publication statusPublished - Sept 2010


    • Cobalt
    • CoPt 3
    • Magnetic properties
    • Nanoparticles
    • Platinum


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