Fe2O3-Graphene Rice-on-Sheet Nanocomposite for High and Fast Lithium Ion Storage

被引：171

作者：

Zou, Yuqin ^{[1
]}

Kan, Jin ^{[1
]}

Wang, Yong ^{[1
]}

机构：

[1] Shanghai Univ, Dept Chem Engn, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 42期

基金：

中国国家自然科学基金;

关键词：

ANODE MATERIAL; ALPHA-FE2O3; NANOSTRUCTURES; ELECTROCHEMICAL PERFORMANCE; GRAPHENE; COMPOSITE; NANOCRYSTALS; CAPACITY;

D O I：

10.1021/jp206876t

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：

Graphene nanosheet (GNS)-supported Fe2O3 nanorice and nanoparticles were synthesized by a microwave-assisted hydrothermal technique. The Fe2O3-GNS rice-on-sheet composite showed a better suitability as an anode material for Li-ion batteries. It exhibited a very large reversible capacity of 1184 mAh/g at a small current of 100 mA/g as well as good cycling performances. A good rate capability was also observed for Fe2O3-GNS rice-on-sheet composite, which exhibited large capacities of 825 and 633 mAh/g at large currents of 1000 and 5000 mA/g, respectively. The outstanding electrochemical behavior was ascribed to the increased electrical conductivity and mechanical stability of Fe2O3 nanorice by GNS support and prevented aggregation of few-layer GNS by the Fe2O3 decoration during the repetitive cycling with lithium ions.

引用

页码：20747 / 20753

页数：7

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