Synthesis of Co-Cu-Zn doped Fe3O4 nanoparticles with tunable morphology and magnetic properties |
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Authors: | Yuan Pu |
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Institution: | Key Lab for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, PR China |
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Abstract: | Co-Cu-Zn doped Fe3O4 nanoparticles can be successfully synthesized using a simple method. The particles in the size range 20−400 nm with different regular shapes i.e. sphere-like, regular hexane and tetrahedron are controllably achieved by changing the metal ion concentration. Compared to pure Fe3O4 without dopants, Co-Cu-Zn doped Fe3O4 nanoparticles exhibit better microwave absorbing properties at 2−18 GHz. Among three Co-Cu-Zn doped Fe3O4 nanoparticles with different morphologies, tetrahedral Co-Cu-Zn doped Fe3O4 nanoparticles represent a better dielectric loss in high frequency range. This work is believed the first known report of Co-Cu-Zn doped Fe3O4 nanoparticles with tunable morphology and magnetic properties through the hydrothermal process without using any organic solvents, organic metal salts or surfactants. |
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Keywords: | Ferrite Hydrothermal synthesis Microwave absorbing Magnetic properties |
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