【Abstract】 Pyridinium dioctadecyldithiophosphate(PyDDP) modified nickel nanoparticles were prepared by chemical reduction method in water toluene mixing solution. Byusing FT IR, TG, XRD and TEM, the resultant surface modified Ni particles were characterized. The results show that the nano Ni core has an average diameter of 12nm with a fcc structure. The hydrophobic groups formed by the organic layer on the surface of Ni particles make the nanoparticles have good stability andoil solubility.更多还原