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The reduced graphene oxide (RGO)/CoFe2O4 magnetical nanocomposites have been successfully fabricated via a facile method combining co-precipitation and hydrothermal process. The TEM results show that the CoFe2O4 nanoparticles with diameters about 10–20 nm are well dispersed on the entire graphene nanosheets without aggregation. In this work, the CoFe2O4 nanoparticles were used to bring magnetic loss...
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