Nickel-cobalt-iron series high-entropy magnetic nanopowder for magnetic hyperthermia and preparation method thereof

The invention belongs to the technical field of production of nano materials, and particularly relates to nickel-cobalt-iron series high-entropy magnetic nano powder for magnetic hyperthermia and a preparation method of the nickel-cobalt-iron series high-entropy magnetic nano powder for magnetic hyperthermia, and according to the method, ferric acetylacetonate, oleic acid, oleylamine, dibenzyl ether and 1, 2-hexadecanediol are used as raw materials, and the nickel-cobalt-iron series high-entropy magnetic nano powder with a fcc + fcc + hcp three-phase structure is synthesized through a high-temperature pyrolysis method. The preparation method has the beneficial effects that the operation is simple, the synthesis method is simple, the powder is fine and uniform, and the magnetocaloric performance is excellent. The high-entropy magnetic nano-powder can be used as a magnetic hyperthermia agent of tumor cells, when an alternating magnetic field with the strength of 46 Oe and the frequency of 266 KHz is applied, th