One-Pot Synthesis of Carbon Nanotube@SnO2-Au Coaxial Nanocable for Lithium-Ion Batteries with High Rate Capability

被引：152

作者：

Chen, Ge ^{[1
]}

Wang, Zhenyao ^{[1
]}

Xia, Dingguo ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 22期

基金：

北京市自然科学基金;

关键词：

D O I：

10.1021/cm801853c

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：

By using a facile one-pot synthetic route, we designed a one-dimensional hybrid nanostructure by introducing small amounts of Au species (0.9 wt %) dispersed over the amorphous tin oxide overlayers uniformly supported on coaxial carbon nanotubes as electrode materials for application in lithium ion battery. The as-synthesized CNT@SnO2-Au nanocables were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, elemental mapping, and X-ray photoelectron spectroscopy; such hybrid nanostructure markedly improves electrode performance, especially for the rate performance. The capacities of 467 and 392 mA h g(-1) were obtained at rates of 3.6 A g(-1) and 7.2 A g(-1), respectively.

引用

页码：6951 / 6956

页数：6

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