Abstract
Herein, we have developed a facile one-pot PEG-200-assited hydrothermal method for the controlled-synthesis of highly dispersed hollow Fe3O4 nanoparticles (∼150nm in diameter, ∼25nm in wall-thickness). Magnetic domains of hollow Fe3O4 nanoparticles are relatively regular with domain width of ∼150nm. The capacity of hollow Fe3O4 nanoparticles retained 599mAhg−1 after 50cycles at 85mAhg−1. When returning to the initial rate of 100mAhg−1, the hollow Fe3O4 nanoparticles electrode returns a lower capacity (315mAhg−1) than the original capacity (433mAhg−1).
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