One-step synthesis of hollow porous Fe3O4 beads-reduced graphene oxide composites with superior battery performance

被引：107

作者：

Chen, Yu ^{[1
]}

Song, Bohang ^{[2
]}

Tang, Xiaosheng ^{[1
]}

Lu, Li ^{[2
]}

Xue, Junmin ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore

[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 34期

关键词：

LITHIUM-ION BATTERIES; CAPACITY ANODE MATERIAL; REVERSIBLE CAPACITY; CYCLIC PERFORMANCE; HIGH-POWER; STORAGE; NANOPARTICLES; LI; ELECTRODES; NANOSHEETS;

D O I：

10.1039/c2jm32057f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：17656 / 17662

页数：7

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