Abstract
Raspberry-shaped aggregates of Fe3O4 nanoparticles are synthesized via a facile hydrazine reduction method with high purity and good yield. The size of the Fe3O4 nanoparticles is in the range of 20–50 nm, which joins together to form raspberry-shaped secondary aggregates. In the absence of hydrazine, only Fe2O3 nanoparticles are formed. The Fe3O4 shows superparamagnetic behavior along with the coercivity and saturation magnetization value of 480 Oe and 41 emu/g at 5 K. The Fe3O4 aggregates show good lithium-ion storage capability with a combination of multi-walled carbon nanotubes. The electrode maintains a high reversible capacity of 662 mAhg−1 after 100 cycles at 50 mAg−1. Therefore, this can be a promising material for magnetic and lithium-ion battery applications.
Published Version
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