Branched Co3O4/Fe2O3 nanowires as high capacity lithium-ion battery anodes

被引：175

作者：

Wu, Hao ^{[1
]}

Xu, Ming ^{[1
]}

Wang, Yongcheng ^{[1
]}

Zheng, Gengfeng ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Adv Mat Lab, Shanghai 200433, Peoples R China

来源：

NANO RESEARCH | 2013年 / 6卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Co3O4; alpha-Fe2O3; nanowire; branched; lithium-ion battery; Nyquist plot; CO3O4; NANOPARTICLES; ARRAYS; GRAPHENE; NANOTUBES; HETEROSTRUCTURES; NANOMATERIALS; COMPOSITE;

D O I：

10.1007/s12274-013-0292-z

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 a facile, two-step hydrothermal synthesis of a novel Co3O4/alpha-Fe2O3 branched nanowire heterostructure, which can serve as a good candidate for lithium-ion battery anodes with high Li+ storage capacity and stability. The single-crystalline, primary Co3O4 nanowire trunk arrays directly grown on Ti substrates allow for efficient electrical and ionic transport. The secondary alpha-Fe2O3 branches provide enhanced surface area and high theoretical Li+ storage capacity, and can also serve as volume spacers between neighboring Co3O4 NW arrays to maintain electrolyte penetration as well as reduce the aggregation during Li+ intercalation, thus leading to improved electrochemical energy storage performance.

引用

页码：167 / 173

页数：7

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