Microwave synthesis of high-quality and uniform 4 nm ZnFe₂O₄ nanocrystals for application in energy storage and nanomagnetics.

ABSTRACT: Magnetic nanocrystals with a narrow size distribution hold promise for many applications in different areas ranging from biomedicine to electronics and energy storage. Herein, the microwave-assisted sol-gel synthesis and thorough characterization of size-monodisperse zinc ferrite nanoparticles of spherical shape is reported. X-ray diffraction, ⁵⁷Fe Mössbauer spectroscopy and X-ray photoelectron spectroscopy all show that the material is both chemically and phase-pure and adopts a partially inverted spinel structure with Fe³⁺ ions residing on tetrahedral and octahedral sites according to (Zn_0.32Fe_0.68)^tet[Zn_0.68Fe_1.32]^octO_4±δ. Electron microscopy and direct-current magnetometry confirm the siz

SUBMITTER: Suchomski C 

PROVIDER: S-EPMC5082472 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature