期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 34, 页码 17656-17662出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm32057f
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We report the synthesis of a novel hollow porous Fe3O4 bead-rGO composite structure for lithium ion battery anode application via a facile solvothermal route. The formation of hollow porous Fe3O4 beads and reduction of graphene oxide (GO) into rGO were accomplished in one step by using ethylene glycol (EG) as a reducing agent. In this composite structure, the hollow porous Fe3O4 beads were either chemically attached or tightly wrapped with rGO sheets, leading to a strong synergistic effect between them. As a result, the obtained Fe3O4-rGO composite electrodes could deliver a reversible capacity of 1039 mA h g(-1) after 170 cycles between 3 V and 50 mV at a current density of 100 mA g(-1), with an increment of 30% compared to their initial reversible capacity, demonstrating their superior cycling stability.
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