Preparation and characterization of Ni plating graphite nanosheet

Ni plating graphite nanosheet (Ni-nanoG) was prepared by electroless plating method. The technology of preparation of Ni-nanoG and the microstructures of Ni-nanoG were studied to obtain a novel magnetic conductive filler. The influence of Ni sulfuric acid concentration, sodium hypophosphite concentration, temperature, pH value on the deposition quality of Ni on graphite nanosheet (nanoG) and the optimum technology were researched. The microstructures of the as-obtained samples were characterized by SEM, XRD and EDS. The magnetic property of Ni-nanoG was studied via the vibrating samplemagnetometer (VSM). The results indicate that a layer of compact Ni coate on the surface of nanoG and the Ni is homogeneously dispersed on the surface and boundary of nanoG. The thickness of Ni-nanoG is about 150 nm. The content of Ni in Ni-nanoG is high and the amount of Ni is about 34.08%. The saturated magnetic strength of Ni-nanoG is 71.2 A·m²·kg^-1. The Ni-nanoG can be used as a new functional filler.