Lightweight NiFe₂O₄ with controllable 3D network structure and enhanced microwave absorbing properties.

ABSTRACT: 3D network structure NiFe₂O₄ was successfully synthesized by a templated salt precipitation method using PMMA colloid crystal as templates. The morphology, phase composition and microwave absorbing properties of as-prepared samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), vector network analyzer (VNA), and so on. The results revealed that the 3D network structure was configurated with smooth spherical walls composed of NiFe₂O₄ nanocrystals and their pore diameters being in the range of 80-250 nm. The microwave absorption properties of the 3D network structure NiFe₂O₄ were crucially determined by the special structure. The synergy of intrinsic magnetic loss of magnetic NiFe₂

SUBMITTER: Wang F 

PROVIDER: S-EPMC5126577 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature