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- W2783012260 abstract "We demonstrate magnetic and hyperthermia properties of CoxFe3-xO4 (x = 0, 0.1, 0.3 and 0.5) nanoparticles synthesized via a simple cation exchange reaction of ∼12 nm Fe3O4 nanoparticles. The substitution of Fe cations with Co2+ ions leads to enhanced magnetocrystalline anisotropy and coercivity of the pristine superparamagnetic Fe3O4 nanoparticles. Hyperthermia measurement shows that by controlling the Co content (x = 0 to 0.5) in CoxFe3-xO4 nanoparticles, their specific absorption rate (SAR) can be greatly improved from 132 to 534 W/g. The strong enhancement in SAR value is attributed to the increased anisotropy and coercivity. Moreover, with the increase of ac magnetic field from 184 to 491 Oe, the SAR values of Fe3O4 and Co0.5Fe2.5O4 nanoparticles increase from 81 to 132 W/g and 220 to 534 W/g, respectively." @default.
- W2783012260 created "2018-01-26" @default.
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- W2783012260 date "2018-01-11" @default.
- W2783012260 modified "2023-10-14" @default.
- W2783012260 title "Magnetic and hyperthermia properties of CoxFe3-xO4 nanoparticles synthesized via cation exchange" @default.
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- W2783012260 doi "https://doi.org/10.1063/1.5006515" @default.
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