Morphology and Phase Compositions of FePt and CoPt Nanoparticles Enriched with Noble Metal.

ABSTRACT: The article reveals for the first time the features of nanoparticle morphology, phase compositions, and their changes when heating FePt and CoPt nanoalloys. Nanoparticles were obtained by co-reduction of precursor solution mixtures with hydrazine hydrate. The features were found by a complex of methods of X-ray diffraction (in situ XRD and X-ray scattering), TEM HR, and cyclic voltammetry. In addition, adsorbometry results were obtained, and the stability of different nanocluster structures was calculated by the molecular dynamics method. There were only FCC solid solutions in the X-ray patterns of the FePt and CoPt nanoalloys. According to XRD, in the case of nanoparticle synthesis with Fe and Co content less than 10 at. %, the composition of solid solutions was close to or practically eq

SUBMITTER: Zakharov YA 

PROVIDER: S-EPMC10707323 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature