Electromagnetic properties of Nd3 + substituted iron oxide on graphite nanosheet

Nd3 + substituted iron oxide (Fe3O4) was chemically precipitated on the surface of graphite nanosheet (NanoG) to get the composite NdxFe3 -xO4/NanoG. The structure of the composite was characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. Results show that under basic conditions, FeCl3.6H2O, NdCl3 and FeSO4.7H2O can carry out coprecipitation reaction to obtain NdxFe3 -xO4 on the surface of NanoG. Measurement of electromagnetic parameters shows that when x = 0.06 and the mass ratio of NdxFe3 -xO4 to NanoG reaches 4:1, Nd0.06Fe2.94O4/NanoG has good microwave absorbing properties (Rmin = − 17.13 dB at 11.90 GHz) in the X band (8.2–12.4 GHz).

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► Nd3 + substituted iron oxide (Fe3O4) was chemically precipitated on the NanoG.
► The composites were characterized by SEM, XRD and EDS.
► The composites are soft ferrites with high saturation magnetization.
► Nd0.06Fe2.94O4/NanoG has high microwave absorbing properties.